P0885

TCM Power Relay Control Circuit/Open

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$6–33 (est.)

Symptoms

Gear shifting problems
The gearbox goes into emergency mode
Check Engine light comes on
The car may not move

Causes

Faulty TCM relay
Open or short circuit in wiring harness
Corrosion of relay contacts
TCM module malfunction
Circuit fuse problems

How to Fix

Check the condition of the circuit fuse
Inspect the TCM relay and replace if necessary
Check wiring harness for damage
Clean relay contacts from corrosion
Check the TCM module for malfunctions

Related codes

P0886 P0887 P0888