P0884

TCM Power Input Signal Intermittent

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–222 (est.)

Symptoms

Jerks when shifting gears
The gearbox goes into emergency mode
Check Engine light comes on
Power Loss
Unstable engine operation

Causes

Poor contact in TCM connector
Damaged wiring or wiring harness
Faulty TCM power relay
Fuse problems
Malfunction of the TCM module itself

How to Fix

Check and clean contacts in TCM connector
Inspect the wiring harness for damage
Check TCM power supply relays and fuses
Test supply voltage to TCM
Replace TCM if necessary

Related codes

P0882 P0883 P0885