P0770
Powertrain Codes
P0770 - CHRYSLER - 4C Solenoid Circuit
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light) - Transmission will not shift gears.
Possible Causes
- Low transmission fluid level - Dirty transmission fluid - Faulty 4C shift solenoid valve - 4C shift solenoid valve harness or connectors - 4C shift solenoid valve circuit is open or shorted
When Detected
The P0770 code is detected when the TCM has detected an electrical fault in the 4C Shift Solenoid-This is an electrical fault, not a transmission mechanical fault
Description
4C 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.