P0753
Powertrain Codes
P0753 - ISUZU - 1-2 Shift Solenoid Fault
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light) - Transmission will not shift gears.
Possible Causes
- Faulty 1-2 shift solenoid valve - 1-2 Shift solenoid valve harness or connectors - 1-2 Shift solenoid valve circuit is open or shorted - Low transmission fluid level - Dirty transmission fluid
When Detected
The P0753 code is detected when the gear required by the ECM does not match the actual gear when vehicle is driven.
Description
1-2 Shift solenoid valve is turned ON or OFF by the Transmission Control Module (TCM) in response to signals sent from the park/neutral position (PNP) switch, vehicle speed and Engine Control Module (ECM) (throttle opening). Gears will then be shifted to the optimum position.