Powertrain, generic · Transmission

P08CC Shift Solenoid J

Check engine lightOn

EmissionsRelevant

Drive cycleNot required

Limp modePossible

Base code for the tenth on/off shift solenoid of an automatic transmission; which valve gets the letter J is decided by the manufacturer. No manufacturer documents this code publicly. Ford's gasoline OBD summary ends its shift solenoid list at SS E, the Genesis 8-speed bulletin stops at solenoid F, and GM and Toyota label their later valves as pressure control or clutch solenoids, so J stays unused in the known sources. CARB requires automatic transmission solenoids to be checked for functional response and circuit faults. A manufacturer reporting the fault type through a DTC suffix, as Toyota does for pressure control solenoid L, would store such faults under this base code instead of P08CD to P08D4. Expect harsh, missing or substitute-gear shifts.

Likely causes

Shift solenoid J faulty (coil or valve)

Contaminated or degraded transmission fluid restricting the valve

Connector or harness fault between TCM and solenoid

Transmission control module output fault

Symptoms

Check engine or transmission warning light on
Harsh, delayed or missing shifts
Transmission may hold a substitute gear

Repair estimate

DifficultyHardWorkshop job

Parts and labour€150–2,500

Time1–6 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

shift solenoid jvalve body

References: law.cornell.edu, fordservicecontent.com, static.nhtsa.gov.