P0737

TCM Engine Speed Output Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–278 (est.)

Symptoms

Check Engine light comes on
Incorrect gear shifting
Delays when shifting gears
Reduced engine power
Transmission transition to emergency mode

Causes

Open or short circuit in the circuit
Poor contact in TCM connectors
TCM module malfunction
Circuit Grounding Problems
Mechanical damage to wiring

How to Fix

Check the integrity of the wiring in the output signal circuit
Inspect and clean contacts in TCM connectors
Check voltage and resistance in the circuit
Scan TCM for additional errors
Replace TCM if necessary

Related codes

P0730 P0735 P0740