Category: Buick

P0611 Buick Fuel Injector Control Module Performance Possible causes – Faulty Fuel Injector Control Module– Fuel Injector Control Module harness is open or shorted– Fuel Injector Control Module circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0611 Buick Description The ECM has not received a signal from the…

P0608 Buick Vehicle Speed Output Circuit Possible causes – Faulty Vehicle Speed Sensor– Vehicle Speed Sensor harness is open or shorted– Vehicle Speed Sensor circuit poor electrical connection What about the obd code? If the fault detection circuit senses a voltage other than what is expected, the fault line status changes causing the P0608 Buick…

P0609 Buick Control Module VSS Output B Malfunction Symptoms – Engine Light ON (or Service Engine Soon Warning Light) Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick – Buick Century – Buick LaCrosse – Buick LeSabre – Buick Lucerne – Buick Park Avenue – Buick Regal – Buick Verano –…

P060A Buick (Internal Control Module) Monitoring Processor Performance OBD Code: System: Subsystem:  P060A Buick – (ASE)  Powertrain  Computer and Auxiliary Output Circuits Trouble Code Description: (Internal Control Module) Monitoring Processor Performance Location: Analysis: Possible Causes:  Internal Control Module     Tech description: Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick –…

P0604 Buick ECM Self Check Fault Possible causes – Loose or poor battery terminal connection– Low battery charge– ECM power supply circuit is open or shorted– ECM Programing– Faulty ECM Tech description Check the ECM/PCM fuse, if fuse is OK try erasing the code first and if the code comes back you may have to…

P0605 Buick EEPROM Fault Possible causes – Engine Control Module (ECM) may be faulty– ECM harness power supply circuit is open or shorted– ECM harness ground circuit is open or shorted Tech description Check the ECM fuse, if fuse is OK try erasing the code first and if the code comes back you may have…

P0606 Buick ECM Processor Failure 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 ECM fuse, if fuse is OK try erasing the code first and if the code comes back you may have to…

P0607 Buick Control Module Performance Possible causes – Faulty Engine Control Module (ECM)– Engine Control Module (ECM) Harness power supply circuit is open or shorted– Engine Control Module (ECM) Programming Tech description Check the ECM fuse, if fuse is OK try erasing the code first and if the code comes back you may have to…

P0599 Buick Thermostat Heater Control Circuit High Possible causes – Failed Engine Cooling Thermostat– Engine Cooling Thermostat harness is open or shorted– Engine Cooling Thermostat circuit poor electrical connection Tech description If there are not coolant system leaks, replaced the thermostat to fix the problem. What about the obd code? The P0598 Buick is triggered…

P0600 Buick A/T Control Serial Communication Link Malfunction Possible causes – The circuit between ECM and A/T control unit is open or shorted– Faulty Engine control Module (ECM)– Engine control Module(ECM) harness is open or shorted– Engine control Module (ECM) cicuit poor electricl connection– Faulty Automatic Transmission Module (TCM)– Low battery voltage– Automatic Transmission Module…

P0601 Buick ECM Self Check Fault Possible causes – Faulty Engine control Module (ECM)– Engine control Module(ECM) harness is open or shorted– Engine control Module (ECM) cicuit poor electricl connection– Low battery voltage What about the obd code? The MIL will turn off on its own after four consecutive ignition cycle in which the diagnostic…

P0602 Buick Powertrain Control Module Programming Error Possible causes – Powertrain Control Module (PCM) not programed– PCM program– Faulty PCM– Wrong PCM Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0602 Buick Description This diagnostic trouble code (DTC) indicates that the Powertrain Control Module (PCM) internal EEPROM is not flashed with any…

P0603 Buick ECM Power Supply Circuit Possible causes – Loose or poor battery terminal connection– Low battery charge– ECM power supply circuit is open or shorted– ECM Programing– Faulty ECM Tech description Start by charging the vehicles battery and clean terminal, once the battery is charged and the terminals are clean and secure, erase code….

P0595 Buick Speed Control Servo Control Circuit Low Possible causes – Faulty Servo Motor– Servo Motor harness is open or shorted– Servo Motor circuit poor electrical connection What about the obd code? Open or shorted condition in the cruise control servo circuit Symptoms – Engine Light ON (or Service Engine Soon Warning Light) Buick Vehicle:Buick…

P0596 Buick Speed Control Servo Control Circuit High Possible causes – Faulty Servo Motor– Servo Motor harness is open or shorted– Servo Motor circuit poor electrical connection What about the obd code? Open or shorted condition in the cruise control servo circuit Symptoms – Engine Light ON (or Service Engine Soon Warning Light) Buick Vehicle:Buick…