P0780 INFINITI Shift Control System Fault

Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty shifting solenoid valve– Shifting solenoid valve harness is open or shorted– Shifting solenoid valve circuit poor electrical connection When is the obd code mean? The P0780 codes is detected when no rotation change occurs between input (turbine revolution sensor) and output (revolution sensor) and…

P0740 INFINITI Torque Converter Clutch Solenoid Valve

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 When is the obd code mean? Diagnostic trouble code P0740 is detected when TCM detects an improper voltage drop when…

P0731 INFINITI 1st. Gear Malfunction

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. When is the obd code mean? P0731 is detected when A/T cannot be shifted to the 1st gear position even…

P0733 INFINITI 3rd. Gear Malfunction

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. When is the obd code mean? P0733 is detected when A/T cannot be shifted to the 3rd gear position even…

P0750 INFINITI Shift Control 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 of the solenoid; the problem…

P0125 INFINITI Engine Coolant Temperature Sensor

Possible causes – Low engine coolant level– Leaking or stuck open thermostat– Faulty Engine Coolant Temperature (ECT) sensor– Engine Coolant Temperature (ECT) sensor harness is open or shorted– Engine Coolant Temperature (ECT) sensor electrical circuit poor connection When is the obd code mean? The voltage sent to Engine Control Module (ECM) from the Engine Coolant…

P0778 INFINITI Pressure Control Solenoid B Circuit

Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty line pressure solenoid ‘B’ valve– Line pressure solenoid ‘B’ valve harness is open or shorted– Line pressure solenoid ‘B’ valve circuit poor electrical connection When is the obd code mean? Engine Control Module (ECM) detectes an open or shorted condition on the solenoid circuit…

P0776 INFINITI Pressure Control Solenoid B Performance

Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty line pressure solenoid ‘B’ valve– Line pressure solenoid ‘B’ valve harness is open or shorted– Line pressure solenoid ‘B’ valve circuit poor electrical connection When is the obd code mean? The gear required by the Engine Control Module (ECM) does not match the actual…

P0775 INFINITI Pressure Control Solenoid Valve B

Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty line pressure solenoid ‘B’ valve– Line pressure solenoid ‘B’ valve harness is open or shorted– Line pressure solenoid ‘B’ valve circuit poor electrical connection When is the obd code mean? The P0775 is detected when TCM detects an improper voltage drop when it tries…

P0745 INFINITI Line Pressure Solenoid Valve Fault

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 electrical part of the solenoid; the…