P0881

TCM Power Input Signal Range/Performance

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$17–111 (est.)

Symptoms

Incorrect gear shifting
The gearbox goes into emergency mode
Check Engine light comes on
Loss of power or jerking when shifting
Problems starting the engine

Causes

Bad contacts in TCM connectors
Damaged TCM power harness
Faulty TCM power relay
Corrosion in electrical connections
Malfunction of the TCM module itself

How to Fix

Check supply voltage to TCM
Inspect and clean TCM connector contacts
Check the integrity of the power wiring harness
Replace TCM power relay if necessary
If the module is faulty, replace the TCM

Related codes

P0880 P0882 P0883