Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1130 CHEVROLET OBD Code Description The Heated Oxygen Sensor (HO2S) is monitored for switching. The test fails when the HO2S does not switch due to circuit or fuel at or exceeding a calibrated limit.
Tag: CHEVROLET
P1131 CHEVROLET HO2S Circuit Low Variance Bank 1 Sensor 2
Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1131 CHEVROLET OBD Code Description A Heated Exhaust Oxygen (HO2S) sensor indicating lean at the end of a test is trying to correct for an over-rich condition. The test fails when the fuel control system no longer detects switching for a calibrated amount of…
P160C CHEVROLET Engine Calibration Information Not Programmed-GPCM
Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P160C CHEVROLET OBD Code Description The control functions for the fuel injection system are integrated in the Engine Control Module (ECM). During the manufacturing process, each injector’s flow rate is measured and recorded as injection quantity adjustment (IQA) flow rate data. The flow rate…
P2565 CHEVROLET Turbocharger Boost Control Position Sensor A Circuit High
Possible causes – Turbocharger Boost Control Position Sensor harness is open or shorted– Turbocharger Boost Control Position Sensor circuit poor electrical connection– Faulty Turbocharger Boost Control Position Sensor When is the obd code mean? The ECM has detected a high voltage from the Turbocharger Boost Control Position Sensor Symptoms – Engine Light ON (or Service…
P0411 CHEVROLET Secondary Air Injection System Insufficient Flow
Possible causes – Vacuum hoses damaged or pinched– Faulty Air Pump inoperative– Faulty Air Pump harness is open or shorted– Faulty Air Pump circuit poor electrical connection When is the obd code mean? The AIR system does not meet the expected flow rate during testing Symptoms – Engine Light ON (or Service Engine Soon Warning…
P0449 CHEVROLET Evaporative Emission Vent Valve Solenoid Malfunction
Possible causes – Vacuum leaks, damaged hoses or improper routing– EVAP system – Check fuel cap, canister, valves or components– Faulty purge or vent solenoids– Check connector and wiring– Fuel saturated vapor canister– Failed EVAP vent solenoid When is the obd code mean? The Engine Control Module (ECM) has determined that a malfunction exists in…
P0689 CHEVROLET Electronic Control Module Power Relay Sense Circuit Low
Possible causes – Weak battery – Low voltage while cranking– Faulty Engine Control Module (ECM) relay– Blown ECM fuse– Faulty ECM– ECM harness is open or shorted– ECM circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
P0690 CHEVROLET Electronic Control Module Power Relay Sense Circuit High
Possible causes – Weak battery – Low voltage while cranking– Faulty Engine Control Module (ECM) relay– Blown ECM fuse– Faulty ECM– ECM harness is open or shorted– ECM circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
P0299 CHEVROLET Turbocharge Engine Underboost
When is the obd code mean? The P0299 code is set when the measured MAP pressure is more than 39 kPa below the expected range for 10 seconds. Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0299 CHEVROLET OBD Code Description
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…