Possible causes – Trailer towing may set code– Check transmission fluid level– Internal transmission fault Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1870 CHEVROLET OBD Code Description
Tag: CHEVROLET
P1684 CHEVROLET Transmission Control Module Power Up Temperature Sensor Performance
Possible causes – Reprogram TCM and recheck code– Replace Transmission Control Module (TCM) Sensor/body assembly one piece Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1684 CHEVROLET OBD Code Description The Transmission Control Module (TCM) power up the temperature sensor is located inside of the control solenoid (w/body and TCM) valve assembly…
P1685 CHEVROLET Transmission Control Module Power Up Temperature Sensor Circuit Low Voltage
Possible causes – Reprogram TCM and recheck code– Replace Transmission Control Module (TCM) Sensor/body assembly one piece Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1685 CHEVROLET OBD Code Description The Transmission Control Module (TCM) power up the temperature sensor is located inside of the control solenoid (w/body and TCM) valve assembly…
P1686 CHEVROLET Transmission Control Module Power Up Temperature Sensor Circuit High Voltage
Possible causes – Reprogram TCM and recheck code– Replace Transmission Control Module (TCM) Sensor/body assembly one piece Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1686 CHEVROLET OBD Code Description The Transmission Control Module (TCM) power up the temperature sensor is located inside of the control solenoid (w/body and TCM) valve assembly…
P1415 CHEVROLET Secondary Air Injection System Bank 1
Possible causes – Secondary Air Injection check valve bank 2– Secondary Air Injection (AIR) pump electrical circuit fault – Blocked Secondary Air Injection (AIR) system – Faulty Secondary Air Injection (AIR) pump When is the obd code mean? The P1415 code is set when no O2 sensor voltage change is detected by the Engine Control…
P1416 CHEVROLET Secondary Air Injection System Bank 2
Possible causes – Secondary Air Injection check valve bank 2– Secondary Air Injection (AIR) pump electrical circuit fault – Blocked Secondary Air Injection (AIR) system – Faulty Secondary Air Injection (AIR) pump When is the obd code mean? The P1416 code is set when no O2 sensor voltage change is detected by the Engine Control…
P1639 CHEVROLET PCM 5 Volt Reference Voltage Circuit Condition
Possible causes – Sensor using 5 volt reference line shorted to ground– Circuit short to ground When is the obd code mean? If the voltage is out of tolerance, the PCM will set DTC P1639. Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1639 CHEVROLET OBD Code Description The powertrain control module…
P0700 CHEVROLET Transaxle Control System Malfunction
Possible causes – Shorted or open circuit within Transmission Control Module (TCM)– Faulty Transmission Control Module (TCM) Tech description Since the P0700 is just and informative code, check the TCM for more codes to resolve the problem. Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Driveability problems– Transmission shifting problems P0700 CHEVROLET…
P0088 CHEVROLET Fuel Rail/System Pressure Too High
Possible causes – Sticking fuel rail pressure regulator When is the obd code mean? The actual fuel rail pressure is above operating specifications. Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0088 CHEVROLET OBD Code Description
P0420 CHEVROLET Catalyst System Low Efficiency Bank 1
Possible causes – Three way catalyst converter Bank 1– Exhaust tube– Intake air leaks– Fuel injectors may be faulty– Fuel injector leaks– Spark plugs may be faulty– Improper ignition timing– Powertrain Control Module (PCM) Tech description As the code description implies the P0420 code means that the vehicle’s control module has detected that the three-way…