P0621 Citroen Generator Lamp L Control Circuit Malfunction

P0621 Citroen Generator Lamp L Control Circuit Malfunction Possible causes – Battery charge– Faulty Generator– Generator harness is open or shorted– Generator circuit poor electrical connection– Engine Control Module (ECM) controlled generator– Faulty ECM Tech description The ECM is detecting a high turn-on voltage at times. Possible causes could be the alternator or the ECM….

P0621 Chrysler Generator Lamp L Control Circuit Malfunction

P0621 Chrysler Generator Lamp L Control Circuit Malfunction Possible causes – Battery charge– Faulty Generator– Generator harness is open or shorted– Generator circuit poor electrical connection– Engine Control Module (ECM) controlled generator– Faulty ECM Tech description The ECM is detecting a high turn-on voltage at times. Possible causes could be the alternator or the ECM….

P0621 Chevrolet Generator Lamp L Control Circuit Malfunction

P0621 Chevrolet Generator Lamp L Control Circuit Malfunction Possible causes – Battery charge– Faulty Generator– Generator harness is open or shorted– Generator circuit poor electrical connection– Engine Control Module (ECM) controlled generator– Faulty ECM Tech description The ECM is detecting a high turn-on voltage at times. Possible causes could be the alternator or the ECM….

P0621 Cadillac Generator Lamp L Control Circuit Malfunction

P0621 Cadillac Generator Lamp L Control Circuit Malfunction Possible causes – Battery charge– Faulty Generator– Generator harness is open or shorted– Generator circuit poor electrical connection– Engine Control Module (ECM) controlled generator– Faulty ECM Tech description The ECM is detecting a high turn-on voltage at times. Possible causes could be the alternator or the ECM….

P0621 Buick Generator Lamp L Control Circuit Malfunction

P0622 Buick Generator Field Not Switching Possible causes – Battery charge– Faulty Generator– Generator harness is open or shorted– Generator circuit poor electrical connection– Engine Control Module (ECM) controlled generator– Faulty ECM Tech description If the battery is OK then the alternator is more than likely the problem. Symptoms – Engine Light ON (or Service…

P0621 BMW Generator Lamp L Control Circuit Malfunction

P0621 BMW Generator Lamp L Control Circuit Malfunction Possible causes – Battery charge– Faulty Generator– Generator harness is open or shorted– Generator circuit poor electrical connection– Engine Control Module (ECM) controlled generator– Faulty ECM Tech description The ECM is detecting a high turn-on voltage at times. Possible causes could be the alternator or the ECM….

P0621 Audi Generator Lamp L Control Circuit Malfunction

P0621 Audi Generator Lamp L Control Circuit Malfunction Possible causes – Battery charge– Faulty Generator– Generator harness is open or shorted– Generator circuit poor electrical connection– Engine Control Module (ECM) controlled generator– Faulty ECM Tech description The ECM is detecting a high turn-on voltage at times. Possible causes could be the alternator or the ECM….

P0621 Acura Generator Lamp L Control Circuit Malfunction

P0621 Acura Generator Lamp L Control Circuit Malfunction Possible causes – Battery charge– Faulty Generator– Generator harness is open or shorted– Generator circuit poor electrical connection– Engine Control Module (ECM) controlled generator– Faulty ECM Tech description The ECM is detecting a high turn-on voltage at times. Possible causes could be the alternator or the ECM….

P0621 Generator Lamp L Control Circuit Malfunction

P0621 Generator Lamp L Control Circuit Malfunction Possible causes – Battery charge– Faulty Generator– Generator harness is open or shorted– Generator circuit poor electrical connection– Engine Control Module (ECM) controlled generator– Faulty ECM Tech description The ECM is detecting a high turn-on voltage at times. Possible causes could be the alternator or the ECM. What…