Category: Buick

P0735 Buick Gear 5 Incorrect Ratio Possible causes – Low transmission fluid level– Dirty transmission fluid– Shift solenoids– Transmission mechanical problems– Transmission hydraulic control circuit Tech description Start by inspecting the transmission fluid level and condition, and change fluid if necessary. What about the obd code? P0735 Buick is detected when A/T cannot be shifted…

P0736 Buick Gear Ratio Error In Reverse Gear Possible causes – Low transmission fluid level– Dirty transmission fluid– Shift solenoids– Transmission mechanical problems– Transmission hydraulic control circuit Tech description Start by inspecting the transmission fluid level and condition, and change fluid if necessary. What about the obd code? The ECM has detected that the transmission…

P0737 Buick Transmission Control Module (TCM) Engine Speed Output Circuit OBD Code: System: Subsystem:  P0737 Buick – (ASE)  Powertrain  Transmission Controls Trouble Code Description: Transmission Control Module (TCM) Engine Speed Output Circuit Location: Analysis: Possible Causes:    Circuit Issue   Tech description: Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick –…

P0729 Buick Automatic Transmission 6th Gear Incorrect Ratio Possible causes – Low transmission fluid level– Shift solenoid mechanical fault– Hydraulic circuit fault– Transmission failure Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Transmission will not shift into 6th gear P0729 Buick Description This malfunction is detected when the A/T does not shift…

P0730 Buick Faulty Shift Control System Possible causes – Low transmission fluid level– Dirty transmission fluid– Shift solenoids– Transmission mechanical problems– Transmission hydraulic control circuit Tech description Start by inspecting the transmission fluid level and condition, and change fluid if necessary. What about the obd code? The TCM has detected that the transmission is trying…

P0731 Buick Gear 1 Incorrect Ratio Possible causes – Low transmission fluid level– Dirty transmission fluid– Shift solenoids– Transmission mechanical problems– Transmission hydraulic control circuit Tech description Start by inspecting the transmission fluid level and condition, and change fluid if necessary. What about the obd code? P0731 Buick is detected when A/T cannot be shifted…

P0732 Buick Gear 2 Incorrect Ratio Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty Shift Solenoids– Shift Solenoids harness is open or shorted– Shift Solenoids circuit poot electrical connection– Transmission mechanical problems– Transmission hydraulic control circuit Tech description Start by inspecting the transmission fluid level and condition, and change fluid if necessary….

P0733 Buick Gear 3 Incorrect Ratio Possible causes – Low transmission fluid level– Dirty transmission fluid– Shift solenoids– Transmission mechanical problems– Transmission hydraulic control circuit Tech description Start by inspecting the transmission fluid level and condition, and change fluid if necessary. What about the obd code? P0733 Buick is detected when A/T cannot be shifted…

P0727 Buick Engine Speed Input Circuit No Signal Possible causes – Faulty Crankshaft Position (CKP) Sensor– Crankshaft Position (CKP) Sensor harness is open or shorted– Crankshaft Position (CKP) Sensor circuit poor electrical connection– Communication error between the Engine Control Module (ECM) and Transmission Control Module (TCM) What about the obd code? The P0727 Buick Codes…

P0728 Buick Engine Speed Input Circuit Intermittent Possible causes – Faulty Crankshaft Position (CKP) Sensor– Crankshaft Position (CKP) Sensor harness is open or shorted– Crankshaft Position (CKP) Sensor circuit poor electrical connection– Communication error between the Engine Control Module (ECM) and Transmission Control Module (TCM) What about the obd code? The P0728 Buick Codes is…

P0725 Buick Engine Speed Sensor Circuit Possible causes – Faulty Crankshaft Position (CKP) Sensor– Crankshaft Position (CKP) Sensor harness is open or shorted– Crankshaft Position (CKP) Sensor circuit poor electrical connection– Communication error between the Engine Control Module (ECM) and Transmission Control Module (TCM) What about the obd code? The P0725 Buick Codes is triggered…

P0726 Buick Engine Speed Input Circuit Range/Performance Possible causes – Faulty Crankshaft Position (CKP) Sensor– Crankshaft Position (CKP) Sensor harness is open or shorted– Crankshaft Position (CKP) Sensor circuit poor electrical connection– Communication error between the Engine Control Module (ECM) and Transmission Control Module (TCM) What about the obd code? The P0726 Buick Codes is…

P0721 Buick Output Speed Sensor Range/Performance Possible causes – Faulty Speed Sensor– Speed Sensor harness is open or shorted– Speed Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Speedometer improper reading– Possible shifting problems P0721 Buick Description The speed sensor detects the revolution of the idler gear…

P0722 Buick Output Speed Sensor No Signal Possible causes – Faulty Speed Sensor– Speed Sensor harness is open or shorted– Speed Sensor circuit poor electrical connection What about the obd code? The output shaft speed sensor failed to provide a signal to the Transmission Control Module (TCM) upon initial movement of vehicle. Symptoms – Engine…

P0723 Buick Output Speed Sensor Intermittent Signal Possible causes – Faulty Speed Sensor– Speed Sensor harness is open or shorted– Speed Sensor circuit poor electrical connection What about the obd code? The output shaft speed sensor failed to provide a signal to the Transmission Control Module (TCM) upon initial movement of vehicle. Symptoms – Engine…

P0724 Buick Brake Switch B Circuit High Possible causes – Faulty Brake Switch– Brake Switch harness is open or shorted– Brake Switch circuit poor electrical connection– Misadjusted Brake Switch What about the obd code? The stop light switch does not turn off even once vehicle is driven. Symptoms – Engine Light ON (or Service Engine…