Possible causes

– Low transmission fluid level
– Dirty transmission fluid
– Faulty shift solenoid ‘E’ valve
– Shift solenoid ‘E’ valve harness is open or shorted
– Shift solenoid ‘E’ valve circuit poor electrical connection

When is the code detected?

The P0770 code is detected when the ECM detects an improper voltage drop when it tries to operate the solenoid valve.

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)
– Transmission will not shift gears.

P0770 Description

Shift solenoid valve ‘E’ 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.

P0770 Information for specific makes

P0770 CHRYSLER
P0770 DODGE
P0770 HYUNDAI
P0770 INFINITI
P0770 JEEP
P0770 KIA
P0770 LEXUS
P0770 MITSUBISHI
P0770 NISSAN
P0770 TOYOTA