Silverado 2008

5.3L V8 VIN 0 Auto 11

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Trouble Code: P0023



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

Possible Causes:



Ignition circuit for a short to ground or an open/high resistance
 
Control circuit for a short to voltage or an open/high resistance
 
Control circuit for a short to ground
 
CMP actuator solenoid
 
Faulty ECM
 

Trouble Code: P0024



Intake Camshaft Position (CMP) System Performance (Bank 2)

Possible Causes:



Control circuit for an open or high resistance
 
Torn,restricted, mis-positioned, or missing screens at the CMP actuator solenoid
 
Oil leaks between the oil sealing lands of the CMP actuator solenoid
 
Lands of the CMP actuator solenoid for nicks
 
Crankshaft reluctor wheel for being mis-positioned
 
Oil seepage at the CMP actuator solenoind connector
 

Trouble Code: P0030



HO2S Heater Control Circuit (Bank 1 Sensor 1)

Possible Causes:



HO2S ignition circuit for a short to ground or an open/high resistance
 
HO2S low control circuit driver is shorted to ground
 
HO2S is damaged or it has failed
 
ECM has failed
 

Trouble Code: P0030



HO2S Heater Control Circuit Sensor 1

Possible Causes:



HO2S ignition circuit for a short to ground or an open/high resistance
 
HO2S low control circuit driver is shorted to ground
 
HO2S is damaged or it has failed
 
ECM has failed
 

Trouble Code: P0031



HO2S Heater Control Circuit Low Voltage Sensor 1

Possible Causes:



HO2S ignition circuit for a short to ground or an open/high resistance
 
HO2S low control circuit driver is shorted to ground
 
HO2S is damaged or it has failed
 
ECM has failed
 

Trouble Code: P0032



HO2S Heater Control Circuit High Voltage Sensor 1

Possible Causes:



HO2S ignition circuit for a short to ground or an open/high resistance
 
HO2S low control circuit driver is shorted to ground
 
HO2S is damaged or it has failed
 
ECM has failed
 

Trouble Code: P0036



HO2S Heater Control Circuit Sensor 2

Possible Causes:



HO2S ignition circuit for a short to ground or an open/high resistance
 
HO2S low control circuit driver is shorted to ground
 
HO2S is damaged or it has failed
 
ECM has failed
 

Trouble Code: P0037



HO2S Heater Control Circuit Low Voltage Sensor 2

Possible Causes:



HO2S low control circuit is shorted to system power (B+)
 
HO2S low control circuit driver is shorted inside the ECM
 
HO2S is damaged or it has failed
 
ECM has failed
 

Trouble Code: P0038



HO2S Heater Control Circuit High Voltage Sensor 2

Possible Causes:



HO2S ignition circuit for a short to ground or an open/high resistance
 
HO2S low control circuit driver is shorted to ground
 
HO2S is damaged or it has failed
 
ECM has failed
 

Trouble Code: P003A



Turbocharger Boost Control Position Not Learned

Possible Causes:



The ECM determines that the difference between the TC desired vane position and the actual TC vane position exceed a calibrated threshold during a valid learn event.
 
The above condition is present for 30 seconds.
 

Trouble Code: P0047



Turbocharger Boost Control Solenoid Control Circuit Low Voltage

Possible Causes:



The ECM detects that the commanded state of the driver and the actual state of the control circuits do NOT match.
 
The above condition exists for equal to or greater than 4 seconds.
 

Trouble Code: P0048



Turbocharger Boost Control Solenoid Control Circuit High Voltage

Possible Causes:



The ECM detects that the commanded state of the driver and the actual state of the control circuits do NOT match.
 
The above condition exists for equal to or greater than 4 seconds.
 

Trouble Code: P0050



HO2S Heater Control Circuit (Bank 2 Sensor 1)

Possible Causes:



HO2S ignition circuit for a short to ground or an open/high resistance
 
HO2S low control circuit driver is shorted to ground
 
HO2S is damaged or it has failed
 
ECM has failed
 

Trouble Code: P0051



HO2S Heater Control Circuit Low Voltage (Bank 2 Sensor 1)

Possible Causes:



HO2S ignition circuit for a short to ground or an open/high resistance
 
HO2S low control circuit driver is shorted to ground
 
HO2S is damaged or it has failed
 
ECM has failed
 

Trouble Code: P0052



HO2S Heater Control Circuit High Voltage (Bank 2 Sensor 1)

Possible Causes:



HO2S ignition circuit for a short to ground or an open/high resistance
 
HO2S low control circuit driver is shorted to ground
 
HO2S is damaged or it has failed
 
ECM has failed
 

Trouble Code: P0053



HO2S Heater Resistance Circuit Sensor 1

Possible Causes:



HO2S ignition circuit for a short to ground or an open/high resistance
 
HO2S low control circuit driver is shorted to ground
 
HO2S is damaged or it has failed
 
ECM has failed
 

Trouble Code: P0053



HO2S Heater Resistance (Bank 1 Sensor 1)

Possible Causes:



HO2S ignition circuit for a short to ground or an open/high resistance
 
HO2S control circuit for a short to voltage, or an open/high resistance
 
HO2S control circuit for a short to ground
 
HO2S is damaged or it has failed
 
ECM has failed
 

Trouble Code: P0054



HO2S Heater Resistance Circuit Bank 1 Sensor 2

Possible Causes:



P0054
 
The ECM detects that the affected HO2S heater low control circuit is not within a specified resistance range at engine start-up.
 
DTC P0054 sets within one second when the above condition is met.
 

Trouble Code: P0059



HO2S Heater Resistance Bank 2 Sensor 1

Possible Causes:



P0059
 
The ECM detects that the affected HO2S heater low control circuit is not within a specified resistance range at engine start-up.
 
DTC P0059 sets within one second when the above condition is met.
 

Trouble Code: P0060



HO2S Heater Resistance (Bank 2 Sensor 2)

Possible Causes:



HO2S ignition circuit for a short to ground or an open/high resistance
 
HO2S control circuit for a short to voltage, or an open/high resistance
 
HO2S control circuit for a short to ground
 
HO2S is damaged or it has failed
 
ECM has failed
 

Trouble Code: P0068



Throttle Body Airflow Performance

Possible Causes:



Throttle body for dirt, debris, and coking
 
Vacuum hoses for splits, kinks, and proper connections
 
Loose or damaged throttle blade
 
Broken throttle shaft
 
Any throttle body damage
 
Throttle body assembly has failed
 

Trouble Code: P0090



Fuel Pressure Regulator Control Circuit

Possible Causes:



The FRP regulator circuit current is not between 40-1,600 mA.
 

Trouble Code: P0096



Intake Air Temperature (IAT) Sensor 2 Performance

Possible Causes:



MAF/IAT low reference circuit for an open/high resistance
 
MAF/IAT low reference circuit for an open/high resistance
 
MAF/IAT signal circuit for an open/high resistance
 
MAF/IAT sensor has failed
 
ECM has failed
 

Trouble Code: P0097



Intake Air Flow System Performance

Possible Causes:



MAF/IAT sensor for loose or improper installation
 
An air flow restriction
 
Any vacuum leak
 
Water intrusion
 
In cold climates, inspect for any snow or ice buildup
 
MAF sensor element for contamination
 
MAF/IAT sensorground circuit for an open/high resistance
 
MAF/IAT sensorignition circuit for a short to ground or an open/high resistance.
 
MAF/IAT sensorsignal circuit for a short to ground or an open/high resistance
 
MAF/IAT sensorsignal circuit for a short to voltage
 

Trouble Code: P0098



Intake Air Temperature (IAT) Sensor 2 Circuit High Voltage

Possible Causes:



P0098
 
The IAT sensor 2 is less than -39°C (-38°F) for greater than 1 second. This is equal to or greater than 4.8V on the IAT sensor 2 signal circuit as measured by the ECM.
 

Trouble Code: P0101



Mass Air Flow (MAF) Sensor Performance

Possible Causes:



The ECM detects that the MAF sensor air flow ratio is not within a predetermined range of the calculated MAF air flow ratio for greater than 16 s.
 

Trouble Code: P0102



Mass Air Flow (MAF) Sensor Circuit Low Frequency

Possible Causes:



P0102
 
The ECM detects that the MAF sensor is less than 3.6 g/s for greater than 3 s.
 

Trouble Code: P0103



Mass Air Flow (MAF) Sensor Circuit High Frequency

Possible Causes:



P0103
 
The ECM detects that the MAF sensor is greater than 527 g/s for greater than 3 s.
 

Trouble Code: P0106



Manifold Absolute Pressure (MAP) Sensor Performance

Possible Causes:



The engine control module (ECM) detects that the MAP sensor pressure is not within range of the calculated pressure that is derived from the system of models for more than 0.5 second.
 

Trouble Code: P0106



Manifold Absolute Pressure (MAP) Sensor Performance

Possible Causes:



The ECM detects that the BARO and MAP sensors disagree by greater than 14 kPa with the ignition ON, for greater than 10 seconds.
 

Trouble Code: P0107



Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage

Possible Causes:



P0107
 
The ECM detects that the MAP sensor voltage is less than 0.10 volt for greater than 4 seconds.
 

Trouble Code: P0107



Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage

Possible Causes:



P0107
 
The ECM detects that the MAP sensor pressure is less than 10 kPa for 10 seconds.
 

Trouble Code: P0108



Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage

Possible Causes:



P0108
 
The ECM detects that the MAP sensor voltage is more than 4.90 volts for greater than 4 seconds.
 

Trouble Code: P0108



Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage

Possible Causes:



P0108
 
The ECM detects that the MAP sensor pressure is greater than 306 kPa for greater than 2 seconds.
 

Trouble Code: P0112



Intake Air Temperature (IAT) Sensor Circuit Low Voltage

Possible Causes:



P0112
 
The IAT Sensor 1 parameter is warmer than 148°C (299°F) for greater than 1 s. This is equal to or less than 0.10 V on the IAT signal circuit as measured by the ECM.
 

Trouble Code: P0113



Intake Air Temperature (IAT) Sensor Circuit High Voltage

Possible Causes:



P0113
 
The IAT Sensor 1 parameter is colder than -39°C (-38°F) for greater than 1 s. This is equal to greater than 4.8 V on the IAT signal circuit as measured by the ECM.
 

Trouble Code: P0116



Engine Coolant Temperature (ECT) Sensor Performance

Possible Causes:



The ECM detects a temperature difference at power-up that indicates that the ECT sensor is 30°C (54°F) greater than the IAT sensor.
 
OR
 
The ECM detects a temperature difference at power-up that indicates that the ECT sensor is 10°C (18°F) more than the IAT sensor, and the time spent cranking the engine is greater than 10 seconds, when the fuel level is more than 5 percent.
 
OR
 
With the power-up IAT more than -7°C (+19°F), the ECM detects a temperature difference at power-up that indicates that the ECT sensor is 20°C (36°F) greater than the IAT sensor. Then the vehicle must be driven for greater than 6 minutes and 40 seconds at greater than 40 km/h (25 mph). If the IAT sensor then decreases more than 4°C (7°F), an engine block heater was detected and the test is aborted. If the IAT sensor does not decrease, an engine block heater was not detected and DTC P0116 will set.
 

Trouble Code: P0116



Engine Coolant Temperature (ECT) Sensor Performance

Possible Causes:



The ECM detects a temperature difference at power-up that indicates that the ECT sensor is 30°C (54°F) warmer than the IAT sensor.
 
OR
 
The ECM detects a temperature difference at power-up that indicates that the ECT sensor is 10°C (18°F) warmer than the IAT sensor, and the time spent cranking the engine is greater than 10 s, when the fuel level is greater than 5 %.
 
OR
 
With the power-up IAT more than -7°C (+19°F), the ECM detects a temperature difference at power-up that indicates that the ECT sensor is 20°C (36°F) greater than the IAT sensor. Then the vehicle must be driven for more than 6 min and 40 s at greater than 40 km/h (25 mph). If the IAT sensor then decreases greater than 4°C (7°F), an engine block heater was detected and the test is aborted. If the IAT sensor does not decrease, an engine block heater was not detected and DTC P0116 will set.
 

Trouble Code: P0116



Engine Coolant Temperature (ECT) Sensor Performance

Possible Causes:



The ECM detects a start-up temperature difference between the ECT sensor and the IAT sensor 2 of more than 15°C (59°F). If the ECT temperature decreases more than 5°C (41.5°F), with an engine RPM greater than 650 within the first 60 seconds of engine run time, a block heater is detected and the test is aborted. If the ECT temperature does not decrease, a block heater was not detected and DTC P0116 sets.
 

Trouble Code: P0117



Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage

Possible Causes:



P0117
 
The ECM detects that the ECT is more than 150°C (302°F) for more than 5 seconds.
 

 
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