Category: Buick

P0665 Buick Intake Manifold Tuning Valve Control Circuit High Bank 2 Possible causes – Faulty Intake Manifold Tuning Valve (IMTV)– Intake Manifold Tuning Valve harness is open or shorted– Intake Manifold Tuning Valve circuit poor electrical connection What about the obd code? The Engine Control Module (ECM) has detected a high signal from the Intake…

P0666 Buick PCM/ECM/TCM Internal Temperature Sensor A Circuit 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 –…

P0667 Buick PCM/ECM/TCM Internal Temperature Sensor A Range/Performance 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 –…

P0668 Buick DME Internal Fault Interior Temperature Sensor Signal Possible causes – Open or shorted interior temperature sensor circuit condition– Poor interior temperature sensor electrical connection– Faulty ECM /TCM Tech description Replace DME as sensor is internal component Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0668 Buick Description PCM/ECM/TCM internal temperature…

P0661 Buick Intake Manifold Runner Control Valve Position Sensor Circuit Low Voltage Possible causes – Faulty Intake Manifold Runner Control (IMRC)– Intake Manifold Runner Control harness is open or shorted– Intake Manifold Runner Control circuit poor electrical connection What about the obd code? If the output voltage from the Intake Manifold Runner Control (IMRC) valve…

P0662 Buick Intake Manifold Runner Control Valve Position Sensor Circuit High Voltage Possible causes – Faulty Intake Manifold Runner Control (IMRC)– Intake Manifold Runner Control harness is open or shorted– Intake Manifold Runner Control circuit poor electrical connection What about the obd code? If the output voltage from the Intake Manifold Runner Control (IMRC) valve…

P0663 Buick Intake Manifold Tuning Valve Control Circuit Open Bank 2 Possible causes – Faulty Intake Manifold Tuning Valve (IMTV)– Intake Manifold Tuning Valve harness is open or shorted– Intake Manifold Tuning Valve circuit poor electrical connection What about the obd code? The Engine Control Module (ECM) has detected an improper signal from the Intake…

P0664 Buick Intake Manifold Tuning Valve Control Circuit Low Bank 2 Possible causes – Faulty Intake Manifold Tuning Valve (IMTV)– Intake Manifold Tuning Valve harness is open or shorted– Intake Manifold Tuning Valve circuit poor electrical connection What about the obd code? The Engine Control Module (ECM) has detected a low signal from the Intake…

P0658 Buick Actuator Supply Voltage A Circuit Low Possible causes – Faulty Engine Control Module (ECM)– ECM harness is open or shorted– ECM circuit poor electrical connection– ECM Programming What about the obd code? The Engine Control Module (ECM) has detected a low voltage to the transmission control solenoids. Symptoms – Engine Light ON (or…

P0659 Buick Actuator Supply Voltage A Circuit High Possible causes – Faulty Engine Control Module (ECM)– ECM harness is open or shorted– ECM circuit poor electrical connection– ECM Programming What about the obd code? The Engine Control Module (ECM) has detected a high voltage to the transmission control solenoids. Symptoms – Engine Light ON (or…

P065A Buick Generator System Performance OBD Code: System: Subsystem:  P065A Buick – (ASE)  Powertrain  Computer and Auxiliary Output Circuits Trouble Code Description: Generator System Performance Location: Analysis: Possible Causes:       Tech description: Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick – Buick Century – Buick LaCrosse – Buick LeSabre…

P0653 Buick Sensor Reference Voltage B Circuit High Possible causes – Faulty Engine Control Module (ECM)– ECM harness is open or shorted– ECM circuit poor electrical connection– Shorted sensor on 5 volt circuit What about the obd code? The Engine Control Module (ECM) has detected the sensor 5 volt reference circuit voltage is higher than…

P0654 Buick Engine Speed Output Circuit Possible causes – Faulty Instrument Cluster– Instrument Cluster harness is open or shorted– Instrument Cluster circuit poor electrical connection– Faulty PCM 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 P0654 Buick code…

P0655 Buick Engine Hot Lamp Output Control Circuit Malfucntion 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…

P0656 Buick Fuel Level Output Circuit Malfunction Possible causes – Faulty Fuel Level Gauge– Fuel Level Gauge harness is open or shorted– Fuel Level Gauge circuit poor electrical connection– Faulty Powertrain Control Module (PCM) What about the obd code? If the fault detection circuit senses a voltage other than what the PCM expects, the fault…

P0657 Buick Actuator Supply Voltage A Circuit Open Possible causes – Faulty Engine Control Module (ECM)– ECM harness is open or shorted– ECM circuit poor electrical connection– ECM Programming Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0657 Buick Description The Transmission Control Moduel (TCM) has detected a voltage supply fault to…