P0883

TCM Power Input Signal High

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

Symptoms

Incorrect gear shifting
Transmission of the gearbox into emergency mode
Check Engine Light Is On
Loss of engine power
Problems starting the engine

Causes

Faulty generator
Problems with the voltage regulator
Short circuit in TCM power supply
Damaged wiring harness
Faulty TCM

How to Fix

Check generator voltage
Check voltage regulator
Inspect the wiring harness for damage
Check TCM power circuit
Replace TCM if necessary

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