Tag: CHEVROLET

Possible causes – Faulty Camshaft Position Sensor– Camshaft Position Sensor harness is open or shorted– Camshaft Position Sensor circuit poor electrical connection– Faulty starter motor– Starting system circuit– Dead (Weak) battery Tech description On some Chevrolet models the camshaft position sensor is part Ignition Control Module (ICM) (aka igniter) Trailblazer P0340 – Cam sensor test…

Possible causes – Faulty Camshaft Position Sensor– Camshaft Position Sensor harness is open or shorted– Camshaft Position Sensor circuit poor electrical connection– Faulty starter motor– Starting system circuit– Dead (Weak) battery Tech description On some Chevrolet models the camshaft position sensor is part Ignition Control Module (ICM) (aka igniter) Trailblazer P0340 – Cam sensor test…

Possible causes – Faulty Camshaft Position Sensor– Camshaft Position Sensor harness is open or shorted– Camshaft Position Sensor circuit poor electrical connection– Faulty starter motor– Starting system circuit– Dead (Weak) battery Tech description Sometimes and in some models, low battery voltage or a weak starter can can trigger a Camshaft Position Sensor code. When is…

Possible causes – Faulty Camshaft Position Sensor– Camshaft Position Sensor harness is open or shorted– Camshaft Position Sensor circuit poor electrical connection– Faulty starter motor– Starting system circuit– Dead (Weak) battery Tech description Sometimes and in some models, low battery voltage or a weak starter can can trigger a Camshaft Position Sensor code. When is…

Possible causes – Faulty Clutch Switch– Misadjusted Clutch Switch– Clutch Switch harness is open or shorted– Clutch Switch circuit poor electrical connection– Faulty Engine Control Module (ECM) Tech description Check clutch switch adjustment, the switch should open and close when the clutch pedal is depress. If the switch is properly adjusted, replaced the clutch switch…

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 obd code mean? The Powertrain Control Module (PCM) commanded the Torque Converter Clutch Pulse Width Modulation (TCC PWM) solenoid on and off and the feedback voltage was…

Possible causes – Faulty Cooling Fan Relay– Cooling Fan Relay harness is open or shorted– Cooling Fan Relay circuit poor electrical component Symptoms – Engine Light ON (or Service Engine Soon Warning Light) – Cooling Fan not working P1641 CHEVROLET OBD Code Description Ignition voltage is supplied to the Cooling Fan relay coil. The Powertrain…

Possible causes – Faulty Air Pump inoperative– Air bypass solenoid harness is open or shorted– Air bypass solenoid circuit poor electrical connection When is the obd code mean? If the fault detection circuit senses a voltage other than what the Powertrain Control Module (PCM) is expects, the fault line status changes causing the code P0418…

Possible causes – Faulty Auxiliary Coolant Pump Relay– Blocked pump control passage– Faulty Auxiliary Coolant Pump– Auxiliary Coolant Pump harness is open or shorted– Auxiliary Coolant Pump circuit poor electrical connection When is the obd code mean? The Engine Control Module (ECM) detects the engine coolant temperature remains greater than 110

Possible causes – Faulty Brake Switch– Brake Switch harness is open or shorted– Brake Switch circuit poor electrical connection When is the obd code mean? When the Powertrain Control Module (PCM) detects an open brake switch circuit (0 volts, low input) during accelerations, then the P0719 is set. Symptoms – Engine Light ON (or Service…