P2138 CHEVROLET Accelerator Pedal Position Sensor 1-2 Correlation

Possible causes – Faulty Accelerator Pedal Position Sensor– Accelerator Pedal Position Sensor harness is open or shorted– Accelerator Pedal Position Sensor circuit poor electrical connection– Faulty Electric Throttle Control Actuator When is the code detected? The Engine Control Module (ECM)

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P2430 CHEVROLET Secondary Air Injection System Pressure Sensor Stuck In Range-Signal Performance Fault

Possible causes – Faulty AIR Pressure Sensor– AIR Pressure Sensor harness is open or shorted– AIR Pressure Sensor circuit poor electrical connection When is the code detected? The AIR Pressure Sensor is reporting a pressure greater than or less than

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P2431 CHEVROLET Secondary Air Injection System Pressure Sensor Signal Performance Fault

Possible causes – Faulty AIR Pressure Sensor– AIR Pressure Sensor harness is open or shorted– AIR Pressure Sensor circuit poor electrical connection When is the code detected? The AIR Pressure Sensor is reporting a pressure greater than or less than

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P2433 CHEVROLET Secondary Air Injection System Pressure Sensor Circuit High Voltage

Possible causes – Faulty AIR Pressure Sensor– AIR Pressure Sensor harness is open or shorted– AIR Pressure Sensor circuit poor electrical connection When is the code detected? The PCM has detected a high voltage condition on the AIR Pressure Sensor

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P2432 CHEVROLET Secondary Air Injection System Pressure Sensor Circuit Low Voltage

Possible causes – Faulty AIR Pressure Sensor– AIR Pressure Sensor harness is open or shorted– AIR Pressure Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2432 CHEVROLET Description The Secondary Air Injection

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P2761 CHEVROLET Torque Converter Clutch Pressure Control Solenoid Valve Circuit

Possible causes – Faulty Control Solenoid Valve Assembly– Control Solenoid Valve Assembly harness is open or shorted– Control Solenoid Valve Assembly circuit poor electrical connection When is the code detected? The Powertrain Control Module (PCM) commanded the Torque Converter Clutch

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P1336 CHEVROLET Crankshaft Position System Variation Not Learned

Possible causes – Faulty Crankshaft Position Sensor– Crankshaft Position Sensor harness is open or shorted– Crankshaft Position Sensor circuit poor electrical connection– Signal plate may be damage Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Lack/Loss of

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P3401 CHEVROLET Cylinder 1 Deactivation Solenoid Control Circuit

Possible causes – Faulty Cylinder Deactivation Solenoid– Cylinder Deactivation Solenoid harness is open or shorted– Cylinder Deactivation Solenoid circuit poor electrical connection When is the code detected? The control module detects that the actual measured values from the MAF sensor,

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