Canyon, Colorado 2006-2007

2.9L L4 VIN 9 Std 1

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2.9L L4 VIN 9 Std

Trouble Code: C0244



Pulse Width Modulated (PWM) Delivered Torque

Possible Causes:



Thoroughly inspect connections or circuitry that may cause an intermittent malfunction.
 

Trouble Code: P0013



Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit

Trouble Code: P0014



Exhaust Camshaft Position (CMP) System Performance

Trouble Code: P0017



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

Possible Causes:

Important: The scan tool control of the CMP actuator is inhibited when DTC P0017 sets.



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.
 
Excessive crankshaft endplay can cause this DTC to set.
 
A crankshaft reluctor wheel that has moved in relationship to top dead center (TDC) on the crankshaft can cause this DTC to set.
 

Trouble Code: P0030



HO2S Heater Control Circuit Sensor 1

Trouble Code: P0036



HO2S Heater Control Circuit Sensor 2

Trouble Code: P0053



HO2S Heater Resistance Sensor 1

Trouble Code: P0054



HO2S Heater Resistance Sensor 2

Trouble Code: P0068



Throttle Body Airflow Performance

Trouble Code: P0101



Mass Air Flow (MAF) Sensor Performance

Possible Causes:



A steady or intermittent high resistance of 15 ohms or greater on the ignition 1 voltage circuit will cause the MAF sensor signal to be increased by as much as 60 g/s.
 
Depending on the current ambient temperature, and the vehicle operating conditions, a MAF sensor signal circuit that is shorted to the IAT signal circuit will cause the MAF sensor signal to be skewed or erratic. Additionally it may cause a rapid fluctuation in the IAT Sensor parameter.
 

Trouble Code: P0102



Mass Air Flow (MAF) Sensor Circuit Low Frequency

Possible Causes:



A steady or intermittent high resistance of 15 ohms or greater on the ignition 1 voltage circuit will cause the MAF sensor signal to be increased by as much as 60 g/s.
 
Depending on the current ambient temperature, and the vehicle operating conditions, a MAF sensor signal circuit that is shorted to the IAT signal circuit will increase or decrease the MAF sensor signal that is interpreted by the ECM. Additionally it may cause a rapid fluctuation in the IAT Sensor parameter.
 

Trouble Code: P0103



Mass Air Flow (MAF) Sensor Circuit High Frequency

Possible Causes:



A steady or intermittent high resistance of 15 ohms or greater on the ignition 1 voltage circuit will cause the MAF sensor signal to be increased by as much as 60 g/s.
 
Depending on the current ambient temperature, and the vehicle operating conditions, a MAF sensor signal circuit that is shorted to the IAT signal circuit will increase or decrease the MAF sensor signal that is interpreted by the ECM. Additionally it may cause a rapid fluctuation in the IAT Sensor parameter.
 

Trouble Code: P0106



Manifold Absolute Pressure (MAP) Sensor Performance

Possible Causes:



A wide open throttle (WOT) acceleration from a stop should cause the MAP sensor parameter on the scan tool to increase rapidly to near the BARO Sensor parameter at the time of the 1-2 shift.
 
A skewed or stuck engine coolant temperature (ECT) sensor or IAT sensor will cause the calculated models to be inaccurate and may cause this DTC to run when it should not. Refer to Temperature Versus Resistance .
 
The barometric pressure (BARO) that is used by the ECM to calculate the air flow models is initially based on the MAP sensor at ignition ON. When the engine is running, the ECM will continually update the BARO value near WOT using the MAP sensor and a calculation. A skewed MAP sensor will cause the BARO value to be inaccurate.
 

Trouble Code: P0107



Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage

Trouble Code: P0108



Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage

Trouble Code: P0112



Intake Air Temperature (IAT) Sensor Circuit Low Voltage

Possible Causes:



If the engine is cold, then at ignition ON, a properly functioning IAT sensor will gradually increase the scan tool IAT Sensor parameter. This is due to the heat that is generated by the mass air flow (MAF) sensor heating elements.
 
Depending on the ambient temperature, an IAT sensor signal circuit or low reference circuit that is shorted to the MAF sensor signal circuit can cause a DTC P0113 to set. This condition causes a rapid fluctuation in the IAT Sensor parameter.
 

Trouble Code: P0113



Intake Air Temperature (IAT) Sensor Circuit High Voltage

Possible Causes:



If the engine is cold, then at ignition ON, a properly functioning IAT sensor will gradually increase the scan tool IAT Sensor parameter. This is due to the heat that is generated by the mass air flow (MAF) sensor heating elements.
 
Depending on the ambient temperature, an IAT sensor signal circuit or low reference circuit that is shorted to the MAF sensor signal circuit can cause a DTC P0113 to set. This condition causes a rapid fluctuation in the IAT Sensor parameter.
 

Trouble Code: P0116



Engine Coolant Temperature (ECT) Sensor Performance

Possible Causes:



Engine coolant that is leaking through the sensor will create a high resistance short to ground. This condition results in less voltage on the ECT sensor signal circuit, which is interpreted by the ECM as a warmer ECT.
 
An IAT sensor that is skewed colder at various ambient temperatures due to greater resistance than is normal will increase the range between these two sensors. Measure and record the resistance of the IAT sensor at various ambient temperatures, then compare those measurements to the Temperature Versus Resistance table.
 
A slight to moderate resistance in the IAT sensor signal circuit or low reference circuit will increase the range between these two sensors. This condition results in a greater voltage on the IAT sensor signal circuit, which is interpreted by the ECM as a colder IAT.
 

Trouble Code: P0117



Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage

Trouble Code: P0118



Engine Coolant Temperature (ECT) Sensor Circuit High Voltage

Trouble Code: P0120



Throttle Position (TP) Sensor 1 Circuit

Trouble Code: P0121



Throttle Position (TP) Sensor 1 Performance

Trouble Code: P0122



Throttle Position (TP) Sensor 1 Circuit Low Voltage

Trouble Code: P0123



Throttle Position (TP) Sensor 1 Circuit High Voltage

Trouble Code: P0128



Engine Coolant Temperature (ECT) Below Thermostat Regulating Temperature

Possible Causes:



DTC P0128 occurring with insufficient vehicle interior heating is an indication of improper thermostat operation.
 
Corrosion in the ECT sensor terminals or the ECT harness connector results in a greater voltage on the ECT sensor signal circuit, which is interpreted by the ECM as a colder ECT.
 
A slight to moderate resistance in the ECT sensor signal circuit or low reference circuit will affect this diagnostic. This condition results in a greater voltage on the ECT sensor signal circuit, which is interpreted by the ECM as a colder ECT.
 

Trouble Code: P0131



HO2S Circuit Low Voltage Sensor 1

Trouble Code: P0132



HO2S Circuit High Voltage Sensor 1

Trouble Code: P0133



HO2S Slow Response Sensor 1

Trouble Code: P0134



HO2S Circuit Insufficient Activity Sensor 1

Trouble Code: P0135



HO2S Heater Performance Sensor 1

Trouble Code: P0137



HO2S Circuit Low Voltage Sensor 2

Trouble Code: P0138



HO2S Circuit High Voltage Sensor 2

Trouble Code: P013A



HO2S Slow Response Rich to Lean Sensor 2

Trouble Code: P013B



HO2S Slow Response Lean to Rich Sensor 2

Trouble Code: P013E



HO2S Delayed Response Rich to Lean Sensor 2

Trouble Code: P013F



HO2S Delayed Response Lean to Rich Sensor 2

Trouble Code: P0140



HO2S Circuit Insufficient Activity Sensor 2

Trouble Code: P0141



HO2S Heater Performance Sensor 2

Trouble Code: P0171



Fuel Trim System Lean

Trouble Code: P0172



Fuel Trim System Rich

 
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