Possible causes – Faulty Glow Plug Control Module– Glow Plug Control Module harness is open or shorted– Glow Plug Control Module circuit poor electrical connection When is the code detected? The Engine Control Module (ECM) has detected a concern in

Possible causes – Faulty Glow Plug Control Module (GPCM)– Glow Plug Control Module harness is open or shorted– Glow Plug Control Module circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1135 CHRYSLER Description

Possible causes – Faulty Heated Oxygen Sensor– Heated Oxygen Sensor harness is open or shorted– Heated Oxygen Sensor circuit poor electrical connection– Exhaust leaks– Contaminated Heated Oxygen Sensor Tech notes Before replacing the Heated Oxygen Sensor, inspect the sensor connector

Possible causes – Faulty Heated Oxygen Sensor– Heated Oxygen Sensor harness is open or shorted– Heated Oxygen Sensor circuit poor electrical connection– Exhaust leaks– Contaminated Heated Oxygen Sensor Tech notes Before replacing the Heated Oxygen Sensor, inspect the sensor connector

Possible causes – Faulty Heated Oxygen Sensor– Heated Oxygen Sensor harness is open or shorted– Heated Oxygen Sensor circuit poor electrical connection– Exhaust leaks– Contaminated Heated Oxygen Sensor Tech notes Before replacing the Heated Oxygen Sensor, inspect the sensor connector

Possible causes – Faulty Heated Oxygen Sensor– Heated Oxygen Sensor harness is open or shorted– Heated Oxygen Sensor circuit poor electrical connection– Exhaust leaks– Contaminated Heated Oxygen Sensor Tech notes Before replacing the Heated Oxygen Sensor, inspect the sensor connector

Possible causes – Faulty Ignition Switch– Ignition Switch harness is open or shorted– Ignition Switch circuit poor electrical connection– Faulty Body Control Module (BCM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1001 CHRYSLER Description The Engine

Possible causes – Faulty Ignition Switch– Ignition Switch harness is open or shorted– Ignition Switch circuit poor electrical connection– Faulty Body Control Module (BCM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1002 CHRYSLER Description The Engine

Possible causes – Faulty Input Speed Sensor– Input Speed Sensor harness is open or shorted– Input Speed Sensor circuit poor electrical connection When is the code detected? The Transmission Control Module (TCM) has detected a correlation error between the two

Possible causes – Faulty Intake Air Temperature Sensor– Intake Air Temperature Sensor harness is open or shorted– Intake Air Temperature Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1112 CHRYSLER Description The

Possible causes – Faulty Intake Temperature sensor– Intake Temperature sensor harness is open or shorted– Intake Temperature sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1110 CHRYSLER Description Intake manifold temp sensor

Possible causes – Faulty MDS Solenoid 1– MDS Solenoid 1 harness is open or shorted– MDS Solenoid 1 circuit poor electrical connection When is the code detected? The ECM has detected a fault in the MDS solenoid circuit Symptoms –

Possible causes – Faulty O2 Sensor 1/2– O2 Sensor 1/2 harness is open or shorted– O2 Sensor 1/2 circuit poor electrical connection – Exhaust leak– Faulty Powertrain Control Module (PCM) Symptoms – Engine Light ON (or Service Engine Soon Warning

Possible causes – Faulty O2 Sensor– O2 Sensor harness open or shorted– O2 Sensor circuit poor electrical connection When is the code detected? The ECM has detected a plausibility fault with the O2 sensor signal

Possible causes – Faulty Rear Heated Oxygen Sensor Bank 1– Rear Heated Oxygen Sensor Bank 1 harness is open or shorted– Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Intake air leaks– Exhaust gas leaks– Inappropriate fuel pressure–

Possible causes – Faulty short runner valve assembly– Short runner valve harness is open or shorted– Short runner valve circuit poor electrical connection– Faulty Powertrain Control Module (PCM) Tech notes There is a bulletin for the following Chrysler models: 2007

Possible causes – Faulty Short Runner Valve– Short Runner Valve harness is open or shorted– Short Runner Valve circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1288 CHRYSLER Description Wide open throttle condition-short

Possible causes – Faulty Throttle Actuator Control (TAC) module– Throttle Actuator Control (TAC) module harness is open or shorted– Throttle Actuator Control (TAC) module circuit poor electrical connection (loose or broken wires) Symptoms – Engine Light ON (or Service Engine

Possible causes – Faulty Throttle Actuator Control Actuator– Throttle Actuator Control Actuator harness is open or shorted– Throttle Actuator Control Actuator circuit poor electrical connection When is the code detected? Engine Control Module (ECM) detects short in both circuits between

Possible causes – Faulty Transmission Control Module (TCM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1631 CHRYSLER Description Transmission Control Module (TCM) Internal Processor Clock Performance