Rendezvous 2006-2007

3.6L V6 VIN 7 Auto 1

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3.6L V6 VIN 7 Auto

Trouble Code: C0241



PCM Indicated Requested Torque Malfunction

Trouble Code: C0244



Pulse Width Modulated (PWM) Delivered Torque

Possible Causes:



It is very important that a thorough inspection of the wiring and connectors be performed. Failure to carefully and fully inspect wiring and connectors may result in misdiagnosis, causing part replacement with reappearance of the malfunction.
 
If an intermittent malfunction exists, refer to Checking Aftermarket Accessories in Wiring Systems.
 
Possible causes for DTC C0244 to set:

An open in the torque delivered control circuit
 
Torque Delivered Control circuit shorted to ground or voltage
 
A communication frequency problem
 
A communication duty cycle problem
 
Torque delivered control circuit has a wiring problem, terminal corrosion, or poor connections
 
EBCM not receiving information from the PCM
 

 

Trouble Code: P0008



Engine Position System Performance Bank 1

Possible Causes:



Inspect the engine for any recent engine mechanical repairs. An incorrectly installed secondary timing chain can cause this DTC to set.
 
A single failed camshaft actuator or actuator solenoid will not cause this DTC to set. This diagnostic algorithm is designed to detect an alignment condition between a primary intermediate sprocket and the secondary timing chain, or the alignment between a primary intermediate sprocket and the crankshaft. Either condition would cause the camshaft timing for both cams on one bank to be off an equal number of degrees.
 
The presence of DTCs P0008 and P0009 along with P0016, P0017, P0018, and P0019 indicate a possible condition with the primary timing chain and the alignment between both intermediate sprockets and the crankshaft, or the crankshaft reluctor wheel has moved and is no longer referenced to top dead center (TDC).
 
Observing the desired and actual camshaft angle parameters, with a scan tool before a DTC sets, may help to isolate whether a condition is specific to one camshaft, one bank, or caused by a condition with the primary crankshaft timing.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0009



Engine Position System Performance Bank 2

Possible Causes:



Inspect the engine for any recent engine mechanical repairs. An incorrectly installed secondary timing chain can cause this DTC to set.
 
A single failed camshaft actuator or actuator solenoid will not cause this DTC to set. This diagnostic algorithm is designed to detect an alignment condition between a primary intermediate sprocket and the secondary timing chain, or the alignment between a primary intermediate sprocket and the crankshaft. Either condition would cause the camshaft timing for both cams on one bank to be off an equal number of degrees.
 
The presence of DTCs P0008 and P0009 along with P0016, P0017, P0018, and P0019 indicate a possible condition with the primary timing chain and the alignment between both intermediate sprockets and the crankshaft, or the crankshaft reluctor wheel has moved and is no longer referenced to top dead center (TDC).
 
Observing the desired and actual camshaft angle parameters, with a scan tool before a DTC sets, may help to isolate whether a condition is specific to one camshaft, one bank, or caused by a condition with the primary crankshaft timing.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0010



Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit Bank 1

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 Connector Test Adapter Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
If the condition is intermittent, move the related harnesses and connectors, with the engine operating, while monitoring the circuit status for the component with a scan tool. The circuit status parameter changes from OK or Indeterminate to Fault if there is a condition with the circuit or a connection. The ODM information is in the output driver module (ODM) data list.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0011



Intake Camshaft Position (CMP) System Performance Bank 1

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 Connector Test Adapter Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
The engine oil condition has a major impact on the camshaft actuator system.
 
A low oil level condition may set this DTC. The engine may require an oil change. Inquire with the customer when the last oil change was performed. You may also monitor the Engine Oil Life parameter with a scan tool. Advise the customer an oil change may be required.
 
Inspect the engine for any recent engine mechanical repairs. An incorrectly installed camshaft, camshaft actuator, or timing chain can cause this DTC to set.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0013



Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit Bank 1

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 Connector Test Adapter Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
If the condition is intermittent, move the related harnesses and connectors, with the engine operating, while monitoring the circuit status for the component with a scan tool. The circuit status parameter changes from OK or Indeterminate to Fault if there is a condition with the circuit or a connection. The ODM information is in the output driver module (ODM) data list.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0014



Exhaust Camshaft Position (CMP) System Performance Bank 1

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 Connector Test Adapter Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
The engine oil condition has a major impact on the camshaft actuator system.
 
A low oil level condition may set this DTC. The engine may require an oil change. Inquire with the customer when the last oil change was performed. You may also monitor the Engine Oil Life parameter with a scan tool. Advise the customer an oil change may be required.
 
Inspect the engine for any recent engine mechanical repairs. An incorrectly installed camshaft, camshaft actuator, or timing chain can cause this DTC to set.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0016



Crankshaft Position (CKP) - Intake Camshaft Position (CMP) Correlation Bank 1

Possible Causes:



Use the J 35616-A/BT-8637 GM Approved Terminal Test Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
Inspect the engine for any recent engine mechanical repairs. An incorrectly installed camshaft, camshaft actuator, camshaft sensor, crankshaft sensor, or timing chain can cause this DTC to set.
 
An actuator that is in the full advance or retard position can cause this DTC to set.
 
The presence of DTCs P0008 and P0009 along with P0016, P0017, P0018, and P0019 indicates a possible condition with the primary timing chain and the alignment between both intermediate sprockets and the crankshaft, or the crankshaft reluctor wheel has moved and is no longer referenced to top dead center (TDC).
 
Observing the desired and actual camshaft angle parameters, with a scan tool before a DTC sets, may help to isolate whether a condition is specific to one camshaft, one bank, or caused by a condition with the primary crankshaft timing.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0017



Crankshaft Position (CKP) - Exhaust Camshaft Position (CMP) Correlation Bank 1

Possible Causes:



Use the J 35616-A/BT-8637 GM Approved Terminal Test Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
Inspect the engine for any recent engine mechanical repairs. An incorrectly installed camshaft, camshaft actuator, camshaft sensor, crankshaft sensor, or timing chain can cause this DTC to set.
 
An actuator that is in the full advance or retard position can cause this DTC to set.
 
The presence of DTCs P0008 and P0009 along with P0016, P0017, P0018, and P0019 indicates a possible condition with the primary timing chain and the alignment between both intermediate sprockets and the crankshaft, or the crankshaft reluctor wheel has moved and is no longer referenced to top dead center (TDC).
 
Observing the desired and actual camshaft angle parameters, with a scan tool before a DTC sets, may help to isolate whether a condition is specific to one camshaft, one bank, or caused by a condition with the primary crankshaft timing.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0018



Crankshaft Position (CKP) - Intake Camshaft Position (CMP) Correlation Bank 2

Possible Causes:



Use the J 35616-A/BT-8637 GM Approved Terminal Test Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
Inspect the engine for any recent engine mechanical repairs. An incorrectly installed camshaft, camshaft actuator, camshaft sensor, crankshaft sensor, or timing chain can cause this DTC to set.
 
An actuator that is in the full advance or retard position can cause this DTC to set.
 
The presence of DTCs P0008 and P0009 along with P0016, P0017, P0018, and P0019 indicates a possible condition with the primary timing chain and the alignment between both intermediate sprockets and the crankshaft, or the crankshaft reluctor wheel has moved and is no longer referenced to top dead center (TDC).
 
Observing the desired and actual camshaft angle parameters, with a scan tool before a DTC sets, may help to isolate whether a condition is specific to one camshaft, one bank, or caused by a condition with the primary crankshaft timing.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0019



Crankshaft Position (CKP) - Exhaust Camshaft Position (CMP) Correlation Bank 2

Possible Causes:



Use the J 35616-A/BT-8637 GM Approved Terminal Test Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
Inspect the engine for any recent engine mechanical repairs. An incorrectly installed camshaft, camshaft actuator, camshaft sensor, crankshaft sensor, or timing chain can cause this DTC to set.
 
An actuator that is in the full advance or retard position can cause this DTC to set.
 
The presence of DTCs P0008 and P0009 along with P0016, P0017, P0018, and P0019 indicates a possible condition with the primary timing chain and the alignment between both intermediate sprockets and the crankshaft, or the crankshaft reluctor wheel has moved and is no longer referenced to top dead center (TDC).
 
Observing the desired and actual camshaft angle parameters, with a scan tool before a DTC sets, may help to isolate whether a condition is specific to one camshaft, one bank, or caused by a condition with the primary crankshaft timing.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0020



Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit Bank 2

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 Connector Test Adapter Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
If the condition is intermittent, move the related harnesses and connectors, with the engine operating, while monitoring the circuit status for the component with a scan tool. The circuit status parameter changes from OK or Indeterminate to Fault if there is a condition with the circuit or a connection. The ODM information is in the output driver module (ODM) data list.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0021



Intake Camshaft Position (CMP) System Performance Bank 2

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 Connector Test Adapter Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
The engine oil condition has a major impact on the camshaft actuator system.
 
A low oil level condition may set this DTC. The engine may require an oil change. Inquire with the customer when the last oil change was performed. You may also monitor the Engine Oil Life parameter with a scan tool. Advise the customer an oil change may be required.
 
Inspect the engine for any recent engine mechanical repairs. An incorrectly installed camshaft, camshaft actuator, or timing chain can cause this DTC to set.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0023



Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit Bank 2

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 Connector Test Adapter Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
If the condition is intermittent, move the related harnesses and connectors, with the engine operating, while monitoring the circuit status for the component with a scan tool. The circuit status parameter changes from OK or Indeterminate to Fault if there is a condition with the circuit or a connection. The ODM information is in the output driver module (ODM) data list.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0024



Exhaust Camshaft Position (CMP) System Performance Bank 2

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 Connector Test Adapter Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
The engine oil condition has a major impact on the camshaft actuator system.
 
A low oil level condition may set this DTC. The engine may require an oil change. Inquire with the customer when the last oil change was performed. You may also monitor the Engine Oil Life parameter with a scan tool. Advise the customer an oil change may be required.
 
Inspect the engine for any recent engine mechanical repairs. An incorrectly installed camshaft, camshaft actuator, or timing chain can cause this DTC to set.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0030



HO2S Heater Control Circuit Sensor 1

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 GM Approved Terminal Test Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
If the condition is intermittent, move the related harnesses and connectors, with the engine operating, while monitoring the circuit status for the component with a scan tool. The circuit status parameter changes from OK or Indeterminate to Fault if there is a condition with the circuit or a connection. The ODM information is in the output driver module (ODM) data list.
 
An open fuse in the HO2S heater circuit may be caused by the heater element in one of the sensors. The condition may not be present until the sensor operates for a period of time. If no fault is present in the heater circuit, monitor the amperage of each heater using the DMM to determine if one of the heater elements is the cause of the open fuse.
 
Inspect the sensor pigtail or the harness for contacting the exhaust system.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0031



HO2S Heater Control Circuit Low Voltage Sensor 1

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 GM Approved Terminal Test Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
If the condition is intermittent, move the related harnesses and connectors, with the engine operating, while monitoring the circuit status for the component with a scan tool. The circuit status parameter changes from OK or Indeterminate to Fault if there is a condition with the circuit or a connection. The ODM information is in the output driver module (ODM) data list.
 
An open fuse in the HO2S heater circuit may be caused by the heater element in one of the sensors. The condition may not be present until the sensor operates for a period of time. If no fault is present in the heater circuit, monitor the amperage of each heater using the DMM to determine if one of the heater elements is the cause of the open fuse.
 
Inspect the sensor pigtail or the harness for contacting the exhaust system.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0032



HO2S Heater Control Circuit High Voltage Sensor 1

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 GM Approved Terminal Test Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
If the condition is intermittent, move the related harnesses and connectors, with the engine operating, while monitoring the circuit status for the component with a scan tool. The circuit status parameter changes from OK or Indeterminate to Fault if there is a condition with the circuit or a connection. The ODM information is in the output driver module (ODM) data list.
 
Inspect the sensor pigtail or the harness for contacting the exhaust system.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0036



HO2S Heater Control Circuit Sensor 2

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 GM Approved Terminal Test Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
If the condition is intermittent, move the related harnesses and connectors, with the engine operating, while monitoring the circuit status for the component with a scan tool. The circuit status parameter changes from OK or Indeterminate to Fault if there is a condition with the circuit or a connection. The ODM information is in the output driver module (ODM) data list.
 
An open fuse in the HO2S heater circuit may be caused by the heater element in one of the sensors. The condition may not be present until the sensor operates for a period of time. If no fault is present in the heater circuit, monitor the amperage of each heater using the DMM to determine if one of the heater elements is the cause of the open fuse.
 
Inspect the sensor pigtail or the harness for contacting the exhaust system.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0037



HO2S Heater Control Circuit Low Voltage Sensor 2

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 GM Approved Terminal Test Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
If the condition is intermittent, move the related harnesses and connectors, with the engine operating, while monitoring the circuit status for the component with a scan tool. The circuit status parameter changes from OK or Indeterminate to Fault if there is a condition with the circuit or a connection. The ODM information is in the output driver module (ODM) data list.
 
An open fuse in the HO2S heater circuit may be caused by the heater element in one of the sensors. The condition may not be present until the sensor operates for a period of time. If no fault is present in the heater circuit, monitor the amperage of each heater using the DMM to determine if one of the heater elements is the cause of the open fuse.
 
Inspect the sensor pigtail or the harness for contacting the exhaust system.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0038



HO2S Heater Control Circuit High Voltage Sensor 2

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 GM Approved Terminal Test Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
If the condition is intermittent, move the related harnesses and connectors, with the engine operating, while monitoring the circuit status for the component with a scan tool. The circuit status parameter changes from OK or Indeterminate to Fault if there is a condition with the circuit or a connection. The ODM information is in the output driver module (ODM) data list.
 
Inspect the sensor pigtail or the harness for contacting the exhaust system.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0053



HO2S Internal Heater Resistance Bank 1 Sensor 1

Trouble Code: P0101



Mass Air Flow (MAF) Sensor Performance

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 GM Approved Terminal Test Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
Any un-metered air that enters the engine may cause this DTC to set.
 
Inspect the throttle plate for sticking, or for deposits on the throttle plate, or in the throttle bore.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0102



Mass Air Flow (MAF) Sensor Circuit Low Voltage

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 Connector Test Adapter Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0103



Mass Air Flow (MAF) Sensor Circuit High Voltage

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 GM Approved Terminal Test Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
Inspect for mis-routed harnesses. Inspect the MAF sensor harness for routing that is too close to the following components:

Ignition coils
 
Solenoids
 
Relays
 
Motors
 

For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0112



Intake Air Temperature (IAT) Sensor Circuit Low Voltage

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 GM Approved Terminal Test Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
Use the Temperature vs Resistance table in order to test the IAT sensor at various temperature levels in order to evaluate the possibility of a skewed sensor. A skewed sensor could result in a driveability condition. If the engine has sat overnight, the intake air temperature and the engine coolant temperature values should display within a few degrees. If the temperatures are not within 3°C (5°F), refer to Temperature Versus Resistance - Intake Air Temperature Sensor .
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0113



Intake Air Temperature (IAT) Sensor Circuit High Voltage

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 GM Approved Terminal Test Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
Use the Temperature vs Resistance table in order to test the IAT sensor at various temperature levels in order to evaluate the possibility of a skewed sensor. A skewed sensor could result in a driveability condition. If the engine has sat overnight, the intake air temperature and the engine coolant temperature values should display within a few degrees. If the temperatures are not within 3°C (5°F), refer to Temperature Versus Resistance - Engine Coolant Temperature Sensor .
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0117



Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 GM Approved Terminal Test Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
An overheating condition may cause this DTC to set.
 
After starting the engine, the ECT should rise steadily to about 90°C (194°F) then stabilize when the thermostat opens.
 
Use the Temperature vs Resistance table in order to test the ECT sensor at various temperature levels in order to evaluate the possibility of a skewed sensor. A skewed sensor could result in a driveability condition. If the engine has sat overnight, the engine coolant temperature and the intake air temperature values should display within a few degrees. If the temperatures are not within 3°C (5.4°F), refer to Temperature Versus Resistance - Engine Coolant Temperature Sensor .
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0118



Engine Coolant Temperature (ECT) Sensor Circuit High Voltage

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 Connector Test Adapter Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
Use the Temperature vs Resistance table in order to test the ECT sensor at various temperature levels in order to evaluate the possibility of a skewed sensor. A skewed sensor could result in a driveability condition. If the engine has sat overnight, the engine coolant temperature and the intake air temperature values should display within a few degrees. If the temperatures are not within 3°C (5°F), refer to Temperature Versus Resistance - Engine Coolant Temperature Sensor .
 
After starting the engine, the ECT should rise steadily to about 90°C (194°F) then stabilize when the thermostat opens.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0121



Throttle Position (TP) Sensor 1 Performance

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 Connector Test Adapter Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
If there is a condition with the TP sensors the ECM defaults to reduced power mode for the entire ignition cycle, even if the condition is corrected.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0122



Throttle Position (TP) Sensor 1 Circuit Low Voltage

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 Connector Test Adapter Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
If there is a condition with the TP sensors the ECM defaults to reduced power mode for the entire ignition cycle, even if the condition is corrected.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0123



Throttle Position (TP) Sensor 1 Circuit High Voltage

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 GM Approved Terminal Test Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
If there is a condition with the TP sensors the ECM defaults to reduced power mode for the entire ignition cycle, even if the condition is corrected.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0125



Engine Coolant Temperature (ECT) Insufficient for Closed Loop Fuel Control

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 Connector Test Adapter Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0128



Engine Coolant Temperature (ECT) Below Thermostat Regulating Temperature

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 Connector Test Adapter Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0130



HO2S Circuit Sensor 1

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 Connector Test Adapter Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
The front wide band sensors do not toggle or switch like a switching HO2S. The front HO2S signals will be relatively stable for an idling engine.
 
For an intermittent condition, refer to Intermittent Conditions .
 
The following table illustrates the typical voltages for the HO2S circuits:
 

Trouble Code: P0131



HO2S Circuit Low Voltage Sensor 1

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 Connector Test Adapter Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
The front wide band sensor does not toggle or switch like a switching HO2S. The front HO2S signal will be relatively stable for an idling engine.
 
For an intermittent condition, refer to Intermittent Conditions .
 
The following table illustrates the typical voltages for the HO2S circuits:
 

Trouble Code: P0132



HO2S Circuit High Voltage Sensor 1

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 Connector Test Adapter Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
The front wide band sensors do not toggle or switch like a switching HO2S. The front HO2S signals will be relatively stable for an idling engine.
 
High resistance in any of the HO2S circuits could cause this DTC to set.
 
For an intermittent condition, refer to Intermittent Conditions .
 
This DTC sets if the heater control circuit is shorted to any other HO2S circuit. The following table illustrates the typical voltages for the HO2S circuits.
 

Trouble Code: P0133



HO2S Slow Response Sensor 1

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 Connector Test Adapter Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
The front wide band sensors do not toggle or switch like a switching HO2S. The front HO2S signal will be relatively stable for an idling engine.
 
For an intermittent condition, refer to Intermittent Conditions .
 
The following table illustrates the typical voltages for the HO2S circuits:
 

Trouble Code: P0135



HO2S Heater Performance Sensor 1

Possible Causes:

The following table illustrates the ECM connector locations:

| ECM Connector Location |

| C2 | C1 |

| Front of Vehicle |



Use the J 35616-A/BT-8637 Connector Test Adapter Kit for any test that requires probing the ECM harness connector or a component harness connector.
 
The front wide band sensors do not toggle or switch like a switching HO2S. The front HO2S signals will be relatively stable for an idling engine.
 
High resistance in any of the HO2S circuits could cause this DTC to set.
 
For an intermittent condition, refer to Intermittent Conditions .
 
The following table illustrates the typical voltages for the HO2S circuits:
 

 
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