P0892

TCM Power Relay Sense Circuit Intermittent

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$6–56 (est.)

Symptoms

Incorrect gearbox operation
Delays when shifting gears
Engine stalls when changing gears
Check Engine light comes on
The gearbox goes into emergency mode

Causes

Faulty TCM power relay
Damaged wiring or poor contacts
Problems with the TCM module
Short circuit in power supply
Unstable voltage in the on-board network

How to Fix

Check the condition of the TCM power relay
Inspect the wiring harness and contacts in the TCM power circuit
Check voltage at relay and TCM terminals
Replace faulty relay or damaged wires
Replace TCM if necessary

Related codes

P0890 P0891 P0893