Canyon, Colorado 2006-2007

3.7L L5 VIN E Auto 4

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Trouble Code: P0711



Transmission Fluid Temperature (TFT) Sensor Performance

Possible Causes:



The DIC, if equipped, will display TRANSMISSION HOT - IDLE ENGINE when the transmission fluid temperature reaches 132°C (270°F).
 
Ask the customer about possible overloading, exceeding the trailer towing limit, or towing in overdrive.
 

Trouble Code: P0712



Transmission Fluid Temperature (TFT) Sensor Circuit Low Voltage

Trouble Code: P0713



Transmission Fluid Temperature (TFT) Sensor Circuit High Voltage

Trouble Code: P0716



Input Speed Sensor Performance

Possible Causes:



Inspect the connectors at the TCM, the AT ISS, and all other circuit connecting points for an intermittent condition. Refer to Testing for Intermittent Conditions and Poor Connections .
 
Inspect the circuit wiring for an intermittent condition. Refer to Testing for Electrical Intermittents .
 
Road test the vehicle while monitoring the Transmission ISS parameter on the scan tool. The Transmission ISS parameter should vary with engine speed changes and not abruptly drop out.
 
Inspect for an open or shorted AT ISS wire.
 
Inspect for a disconnected AT ISS connector.
 
Inspect for a faulty AT ISS.
 

Trouble Code: P0717



Input Speed Sensor Circuit Low Voltage

Possible Causes:



Inspect the connectors at the TCM, the AT ISS, and all other circuit connecting points for an intermittent condition. Refer to Testing for Intermittent Conditions and Poor Connections .
 
Inspect the circuit wiring for an intermittent condition. Refer to Testing for Electrical Intermittents .
 
Road test the vehicle while monitoring the Transmission ISS parameter on the scan tool. The Transmission ISS parameter should vary with engine speed changes and not abruptly drop out.
 
Inspect for an open or shorted AT ISS wire.
 
Inspect for a disconnected AT ISS connector.
 
Inspect for a faulty AT ISS.
 

Trouble Code: P0719



Brake Switch Circuit Low Voltage

Possible Causes:



Inspect the brake switch for proper mounting and operation.
 
Inspect for ABS DTCs. A faulty ABS condition may contribute to setting DTC P0724.
 
It may be necessary to also clear this DTC from the engine control module (ECM).
 

Trouble Code: P071A



Transmission Tow Mode Switch Circuit

Possible Causes:



If the electrical circuit tests are OK and the shift pattern is not occurring, there may be a mechanical/hydraulic condition that prevents operation. Refer to Symptoms - Automatic Transmission .
 

Trouble Code: P0722



Output Speed Sensor Circuit Low Voltage

Possible Causes:



Inspect the rear internal gear teeth for damage.
 
Visually inspect the OSS for cracks or damage.
 
Ensure the OSS is properly torqued to the transmission housing.
 

Trouble Code: P0723



Output Speed Sensor Circuit Intermittent

Possible Causes:



Inspect the rear internal gear teeth for damage.
 
Visually inspect the OSS for cracks or damage.
 
Ensure the OSS is properly torqued to the transmission housing.
 

Trouble Code: P0724



Brake Switch Circuit High Voltage

Possible Causes:



Inspect the brake switch for proper mounting and operation.
 
Inspect for ABS DTCs. A faulty ABS condition may contribute to setting DTC P0724.
 
It may be necessary to also clear this DTC from the engine control module (ECM).
 

Trouble Code: P0741



Torque Converter Clutch (TCC) System - Stuck Off

Possible Causes:

If the DTC is cleared, then will not reset when the vehicle is driven, some of the following conditions may exist:



Fluid contamination
 
Plugged fluid circuits
 
Restricted fluid circuits
 
Inspect transmission fluid lines to radiator. Lines may be pinched, plugged or twisted.
 
Refer to Shift Solenoid Valve State and Gear Ratio .
 
Internal damage to the torque converter may prevent TCC application.
 

Trouble Code: P0742



Torque Converter Clutch (TCC) System - Stuck On

Possible Causes:

The TCC fluid hydraulically applies the TCC, possibly causing an engine stall, under the following conditions:



The TCC is hydraulically stuck ON.
 
The parking brake is applied.
 
Any gear range is selected.
 
Contamination may cause the TCC apply valve to intermittently stick in the valve body.
 
Internal damage in the torque converter may cause no TCC apply.
 
Fluid contamination

Plugged fluid circuits
 
Restricted fluid circuits
 

Refer to Shift Solenoid Valve State and Gear Ratio .
 

Trouble Code: P0751



1-2 Shift Solenoid (SS) Valve Performance - No First, Fourth or Fifth Gear

Possible Causes:

If the DTC is cleared, then will not reset when the vehicle is driven, some of the following conditions may exist:



Fluid contamination
 
Plugged fluid circuits
 
Restricted fluid circuits
 
Inspect transmission fluid lines to radiator. Lines may be pinched, plugged or twisted.
 
Refer to Shift Solenoid Valve State and Gear Ratio .
 
Internal damage to the torque converter may prevent TCC application.
 

Trouble Code: P0752



1-2 Shift Solenoid (SS) Valve Performance - No Second or Third Gear

Possible Causes:

The TCC fluid hydraulically applies the TCC, possibly causing an engine stall, under the following conditions:



The TCC is hydraulically stuck ON.
 
The parking brake is applied.
 
Any gear range is selected.
 
Contamination may cause the TCC apply valve to intermittently stick in the valve body.
 
Internal damage in the torque converter may cause no TCC apply.
 
Fluid contamination

Plugged fluid circuits
 
Restricted fluid circuits
 

Refer to Shift Solenoid Valve State and Gear Ratio .
 

Trouble Code: P0756



2-3 Shift Solenoid (SS) Valve Performance - No First or Second Gear

Possible Causes:

If the DTC is cleared, then will not reset when the vehicle is driven, some of the following conditions may exist:



Fluid contamination
 
Plugged fluid circuits
 
Restricted fluid circuits
 
Inspect transmission fluid lines to radiator. Lines may be pinched, plugged or twisted.
 
Refer to Shift Solenoid Valve State and Gear Ratio .
 
Internal damage to the torque converter may prevent TCC application.
 

Trouble Code: P0757



2-3 Shift Solenoid (SS) Valve Performance - No Third, Fourth or Fifth Gear

Possible Causes:

The TCC fluid hydraulically applies the TCC, possibly causing an engine stall, under the following conditions:



The TCC is hydraulically stuck ON.
 
The parking brake is applied.
 
Any gear range is selected.
 
Contamination may cause the TCC apply valve to intermittently stick in the valve body.
 
Internal damage in the torque converter may cause no TCC apply.
 
Fluid contamination

Plugged fluid circuits
 
Restricted fluid circuits
 

Refer to Shift Solenoid Valve State and Gear Ratio .
 

Trouble Code: P0787



3-2 Shift Solenoid (SS) Control Circuit Low Voltage

Trouble Code: P0788



3-2 Shift Solenoid (SS) Control Circuit High Voltage

Trouble Code: P0806



Clutch Pedal Position (CPP) Sensor Circuit Performance

Trouble Code: P0807



Clutch Pedal Position (CPP) Sensor Circuit Low Voltage

Trouble Code: P0808



Clutch Pedal Position (CPP) Sensor Circuit High Voltage

Trouble Code: P080A



Clutch Pedal Position (CPP) Not Learned

Trouble Code: P0851



Park/Neutral Position (PNP) Switch Circuit Low Voltage

Possible Causes:



It is possible for this DTC to set due to a stack-up or misalignment issue, where no electrical fault is present. Ensure the gear shift selector cable is properly adjusted and there are no service bulletins that address this concern before replacing parts.
 

Trouble Code: P0852



Park/Neutral Position (PNP) Switch Circuit High Voltage

Possible Causes:



It is possible for this DTC to set due to a stack-up or misalignment issue, where no electrical fault is present. Ensure the gear shift selector cable is properly adjusted and there are no service bulletins that address this concern before replacing parts.
 

Trouble Code: P0961



Line Pressure Control (PC) Solenoid System Performance

Possible Causes:



DTC P0961 may set under low voltage conditions caused by high electrical system demands.
 

Trouble Code: P0973



1-2 Shift Solenoid (SS) Control Circuit Low Voltage

Trouble Code: P0974



1-2 Shift Solenoid (SS) Control Circuit High Voltage

Trouble Code: P0976



2-3 Shift Solenoid (SS) Control Circuit Low Voltage

Trouble Code: P0977



2-3 Shift Solenoid (SS) Control Circuit High Voltage

Trouble Code: P1101



Intake Air Flow System 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: P1133



HO2S Insufficient Switching Sensor 1

Trouble Code: P1174



Fuel Trim Cylinder Balance

Possible Causes:



The Fuel Trim Cylinder Balance diagnostic is very sensitive to HO2S design. A non-OE sensor or an incorrect part number may set a false DTC.
 
Monitoring the misfire current counters, or misfire graph, may help to isolate the cylinder that is causing the condition.
 

Trouble Code: P1381



Misfire Detected - No Communication With Brake Control Module

Trouble Code: P1400



Cold Start Emission Reduction Control System

Possible Causes:



Any loading of the engine that lowers engine RPM, such as partial application of the clutch, A/C cycling, etc. during the first 120 seconds of the engine run time may set this DTC.
 

Trouble Code: P150A



Transmission Output Speed Signal Circuit

Possible Causes:



A defective transmission output speed sensor (OSS) can cause inaccurate speed reading, creating faulty replicated output speed signal. Also, inspect the OSS for cracks, loose mounting, or damage.
 
If the speed sensor passes testing, refer to Testing for Intermittent Conditions and Poor Connections .
 

Trouble Code: P150B



Transmission Output Speed Sensor Circuit Intermittent

Possible Causes:



A defective transmission output speed sensor (OSS) can cause inaccurate speed reading, creating faulty replicated output speed signal. Also, inspect the OSS for cracks, loose mounting, or damage.
 
If the speed sensor passes testing, refer to Testing for Intermittent Conditions and Poor Connections .
 

Trouble Code: P1516



Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance

Trouble Code: P1545



Air Conditioning (A/C) Clutch Relay Control Circuit

Trouble Code: P1574



Stoplamp Switch Circuit

Possible Causes:



Observe the stop lamps operate properly. Refer to Exterior Lighting Systems Description and Operation in order to avoid misdiagnosis.
 

Trouble Code: P1630



Theft Deterrent Learn Mode Active

 
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