Category: OBDii Powertrain Codes

P0756 Shift Solenoid B Stuck Off Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty shift solenoid ‘B’ valve– Shift solenoid ‘B’ valve harness or connectors– Shift solenoid ‘B’ valve circuit is open or shorted Tech description When the a transmission solenoid is stuck off, in most cases the problem is not the…

P0748 Pressure Control Solenoid A Circuit System Fault Possible causes – Dirty transmission fluid– Low transmission fluid level– Faulty line pressure solenoid valve ‘A’– Line pressure solenoid valve ‘A’ harness is open or shorted– Line pressure solenoid valve ‘A’ circuit poor electrical connection Tech description When the a transmission solenoid is stuck on, in most…

P0749 Pressure Control Solenoid A Intermittent Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty line pressure solenoid valve ‘A’– Line pressure solenoid valve ‘A’ harness is open or shorted– Line pressure solenoid valve ‘A’ circuit poor electrical connection Tech description When the a transmission solenoid is intermittent, in most cases the problem…

P0750 Shift Solenoid A Malfunction Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty shift solenoid ‘A’ valve– Shift solenoid ‘A’ valve harness or connectors– Shift solenoid ‘A’ valve circuit is open or shorted Tech description When the a transmission solenoid is malfunction, in most cases the problem is not the electrical part…

P0751 Shift Solenoid A Performance or Stuck Off Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty shift solenoid ‘A’ valve– Shift solenoid ‘A’ valve harness or connectors– Shift solenoid ‘A’ valve circuit is open or shorted Tech description When the a transmission solenoid is stuck off, in most cases the problem is…

P0752 Shift Solenoid A Performance or Stuck On Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty shift solenoid ‘A’ valve– Shift solenoid ‘A’ valve harness or connectors– Shift solenoid ‘A’ valve circuit is open or shorted Tech description When the a transmission solenoid is stuck on, in most cases the problem is…

P0753 Shift Solenoid A Electrical Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty shift solenoid ‘A’ valve– Shift solenoid ‘A’ valve harness or connectors– Shift solenoid ‘A’ valve circuit is open or shorted What about the obd code? The P0753 code is detected when the gear required by the ECM does not…

P0754 Shift Solenoid A Intermittent Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty shift solenoid ‘A’ valve– Shift solenoid ‘A’ valve harness or connectors– Shift solenoid ‘A’ valve circuit is open or shorted Tech description When the a transmission solenoid is intermittent, in most cases the problem is not the electrical part…

P0755 Shift Solenoid B Malfunction Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty shift solenoid ‘B’ valve– Shift solenoid ‘B’ valve harness is open or shorted– Shift solenoid ‘B’ valve circuit poor electrical connection Tech description When the a transmission solenoid is malfunction, in most cases the problem is not the electrical…

P0741 Torque Converter Clutch Circuit Performance or Stuck Off Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty torque converter clutch solenoid valve– Torque converter clutch solenoid valve harness or connectors– Torque converter clutch solenoid valve circuit is open or shorted– Transmission internal mechanical problem What about the obd code? Lock-up does not…

P0742 Torque Converter Clutch Circuit Stuck On Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty torque converter clutch solenoid valve– Torque converter clutch solenoid valve harness or connectors– Torque converter clutch solenoid valve circuit is open or shorted– Transmission internal mechanical problem Tech description When the a transmission solenoid is stuck on,…

P0743 Torque Converter Clutch Circuit Electrical Possible causes – Faulty torque converter clutch solenoid valve– Torque converter clutch solenoid valve harness is open or shorted– Torque converter clutch solenoid valve circuit poor electrical connection– Low transmission fluid level– Dirty transmission fluid Tech description This is an electrical problem code. Could be a problem to the…

P0744 Torque Converter Clutch Solenoid Valve Function Possible causes – Faulty torque converter clutch solenoid valve– Torque converter clutch solenoid valve harness is open or shorted– Torque converter clutch solenoid valve circuit poor electrical connection– Low transmission fluid level– Dirty transmission fluid Tech description When the a transmission solenoid is working intermittent, in most cases…

P0745 Pressure Control Solenoid Electrical Malfunction Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty line pressure solenoid valve– Line pressure solenoid valve harness is open or shorted– Line pressure solenoid valve circuit poor electrical connection Tech description When the a transmission solenoid is malfunction, in most cases the problem is not the…

P0746 Pressure Control Solenoid A Performance Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty line pressure solenoid valve– Line pressure solenoid valve harness is open or shorted– Line pressure solenoid valve circuit poor electrical connection Tech description When the a transmission solenoid is stuck off, in most cases the problem is not…

P0747 Pressure Control Solenoid A Stuck On Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty Pressure Control Solenoid– Pressure Control Solenoid harness is open or shorted– Pressure Control Solenoid circuit poor electrical connection Tech description When the a transmission solenoid is stuck on, in most cases the problem is not the electrical…

P0738 Transmission Control Module (TCM) Engine Speed Output Circuit Low OBD Code: System: Subsystem:  P0738 – (ASE)  Powertrain  Transmission Controls Trouble Code Description: Transmission Control Module (TCM) Engine Speed Output Circuit Low Location: Analysis: Possible Causes:    End of Range – Circuit Lower Than Expected   Tech description:

P0739 Transmission Control Module (TCM) Engine Speed Output Circuit High OBD Code: System: Subsystem:  P0739 – (ASE)  Powertrain  Transmission Controls Trouble Code Description: Transmission Control Module (TCM) Engine Speed Output Circuit High Location: Analysis: Possible Causes:    End of Range – Circuit Higher Than Expected   Tech description:

P0740 Torque Converter Clutch Circuit Malfunction Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty torque converter clutch solenoid valve– Torque converter clutch solenoid valve harness is open or shorted– Torque converter clutch solenoid valve circuit poor electrical connection What about the obd code? Diagnostic trouble code P0740 is detected when TCM detects…

P0729 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 Description This malfunction is detected when the A/T does not shift into 6GR…