Tag: CHEVROLET

Possible causes – EGR volume control valve stuck open or closed– Faulty EGR volume control solenoid valve– EGR volume control solenoid valve harness is open or shorted– EGR volume control solenoid valve circuit poor electrical connection– EGR temperature sensor and circuit When is the obd code mean? An improper voltage signal is sent to Powertrain…

Possible causes – EGR volume control valve stuck open or closed– Faulty EGR volume control solenoid valve– EGR volume control solenoid valve harness is open or shorted– EGR volume control solenoid valve circuit poor electrical connection– EGR temperature sensor and circuit When is the obd code mean? The PCM calculates an error based on the…

Possible causes – Engine Control Module (ECM) Harness power supply circuit is open or shorted– Engine Control Module (ECM) Programming– Faulty Engine Control Module (ECM) Tech description Check the PCM fuse, if fuse is OK try erasing the code first and if the code comes back you may have to reprogram or replaced the PCM….

Possible causes – Engine Control Module (ECM) programm error– Wrong Engine Control Module (ECM)– Faulty Engine Control Module (ECM) Tech description This code means that there may be an internal problem with the Engine Control Module (ECM). Start by checking battery charge and connections. Try clearing the code and re test. Symptoms – Engine Light…

Possible causes – Deterrent key not programmed to vheicle– Faulty Deterrent key– Fualty ignition switch– Poor electrical connection for Deterrent circuit components Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– No or hard engine start situation P1678 CHEVROLET OBD Code Description The Engine Control Module (ECM), the Powertrain Interface Module (PIM), and…

Possible causes – Deterrent key not programmed to vheicle– Faulty Deterrent key– Fualty ignition switch– Poor electrical connection for Deterrent circuit components Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– No or hard engine start situation P1679 CHEVROLET OBD Code Description The Engine Control Module (ECM), the Powertrain Interface Module (PIM), and…

Possible causes – Dirty Oil– Engine mechanical problems– Faulty camshaft position sensor– Faulty crankshaft position sensor– Timing belt jumped Tech description There is a factory service bulletin for the following Chevrolet models: 2004-2009 Chevrolet TrailBlazer2004-2009 Chevrolet Colorado2004-2009 Chevrolet TrailBlazer, Colorado Factory Service Bulletin OBDII Code P0017 Symptoms – Engine Light ON (or Service Engine Soon…

Possible causes – Battery defective– Loose or missing alternator drive belt– Faulty alternator– Open or short system voltage circuit Tech description Higher than expected voltage problems are most likely caused by bad voltage regulator. The voltage regulator is part of the alternator. When is the obd code mean? The Powertrain Control Module (PCM) has detected…

Possible causes – Cooling fan harness and connector– Faulty cooling fan When is the obd code mean? The P0526 code is detected when the PCM has detected a loss of cooling fan speed signal and the condition is present for at least 11 seconds. Symptoms – Engine Light ON (or Service Engine Soon Warning Light)–…

Possible causes – Dead or weak battery – Poor circuit connection – Check Throttle Actuator Control (TAC) module connector for water – Faulty Throttle Actuator Control (TAC) module When is the obd code mean? The Engine Control Module (ECM) has detected a loss of data or invalid data from the Throttle Actuator Control (TAC) Symptoms…