dodge - OBD II Codes, OBD 2 Codes

P0689 DODGE Auto Shutdown Relay Control 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 Tech notes Check all the ECM fuses, if

P0688 DODGE Auto Shutdown Relay Control 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 Tech notes Check all the ECM fuses, if the

P0686 DODGE Engine Control Module Voltage Error 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

P0687 DODGE Engine Control Module Voltage Error 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

P0219 DODGE Engine Overspeed

Possible causes – Wheel slippage (water, ice, mud, and snow)– Excessive engine RPM in NEUTRAL or operated in the wrong transmission gear.– Mechanical engine problems– Mechanical transmission problem– Powertrain control module– Transmission control problem Symptoms – Engine Light ON (or

P0540 DODGE Intake Air Heater Feedback Circuit

Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0540 DODGE Description The Engine Control Module (ECM) uses an Intake Air Heater (IAH) to warm the incoming air for proper cylinder combustion. The ECM grounds the control coil