Low, degraded or contaminated transmission fluid causing the solenoid to stick; Shift Solenoid C sticking mechanically due to debris or varnish; Blocked or clogged transmission filter or valve body passages; Worn valve body or internal hydraulic leakage affecting shift timing; Damaged wiring, poor connector contact or short in the solenoid circuit; Faulty transmission control module or outdated software calibration; Internal clutch or band wear giving a mismatched gear ratio.

P0762

Shift Solenoid C Stuck On.

Generic
Powertrain
Generic code
Medium severity

How this code is built

P: SystemPowertrain
0: Defined bySAE, the same on every car
7: AreaTransmission
62: FaultThe specific fault in that area

What it means

P0762 means the transmission control module has detected that Shift Solenoid C is stuck on, meaning it is mechanically or hydraulically stuck in the energised or open position. The module saw a gear ratio or pressure switch response that did not match the gear it commanded. Which gears Solenoid C controls depends on the make, model and gearbox, so check the manufacturer data for your transmission.

Symptoms

Gearbox warning light or malfunction indicator lamp on
Transmission stuck in one gear or in limp mode
Harsh, delayed or flared gear changes
Wrong gear selected or a gear missing
Poor acceleration or high revs at motorway speed
Poorer fuel economy

Possible causes

Low, degraded or contaminated transmission fluid causing the solenoid to sticklikely
Shift Solenoid C sticking mechanically due to debris or varnishlikely
Blocked or clogged transmission filter or valve body passagespossible
Worn valve body or internal hydraulic leakage affecting shift timingpossible
Damaged wiring, poor connector contact or short in the solenoid circuitpossible
Faulty transmission control module or outdated software calibrationrare
Internal clutch or band wear giving a mismatched gear ratiorare

How to diagnose

Read all stored codes and freeze frame data, noting speed, gear, temperature and load when the fault set
Check the transmission fluid level, condition and smell, following the manufacturer's procedure for the correct temperature
Inspect the transmission wiring, harness and connector for chafing, corrosion, fluid ingress or pin damage
Check for related manufacturer technical bulletins and any available software updates for the vehicle
Use live data to compare commanded gear with actual gear ratio and watch solenoid state during gear changes
Test the solenoid circuit resistance and the supply and ground against the manufacturer's specification
Inspect the transmission pan for metal debris or clutch material, and check the filter
Remove the valve body only if earlier checks point to it, and inspect the solenoid and bores for sticking or wear

How to fix

Correct the fluid level or replace the fluid and filter with the specification the manufacturer calls for
Repair or replace damaged wiring or connectors in the solenoid circuit
Replace Shift Solenoid C if it fails electrical or functional tests
Clean or overhaul the valve body, or replace it if the bores are worn
Update the transmission control module software if a known calibration fault applies, or replace the module if confirmed faulty
Overhaul or replace the transmission if internal wear or damage is found

Can I keep driving?

Medium severity

The car can usually be driven carefully for a short time, but the gearbox may be in limp mode and the fault can get worse. Avoid heavy loads and long journeys and get it checked soon to prevent internal damage.

Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.