P0880

TCM Power Input Signal

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–278 (est.)

Symptoms

Incorrect gear shifting
Switching to emergency mode of the gearbox
Check Engine Light Illuminates
Loss of engine power
Dips during acceleration

Causes

Poor contact in TCM connectors
Open or short circuit in TCM power circuit
Faulty TCM power relay
Alternator or battery problems
Malfunction of the TCM itself

How to Fix

Check the voltage at the battery terminals
Inspect the TCM connectors and wiring for damage.
Check TCM power relay
Test TCM power circuit
Replace TCM if necessary

Related codes

P0881 P0882 P0700