OBD Guide

P0737

TCM Engine Speed Output Circuit

P0737 is an OBD-II diagnostic trouble code meaning: TCM Engine Speed Output Circuit. Common causes: open or short circuit in the circuit, poor contact in tcm connectors. Estimated repair cost: $56–278.

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

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

Related codes

Error P0737 by Vehicle Brand

FAQ

What does the P0737 code mean?

P0737 is an OBD-II diagnostic trouble code that indicates: TCM Engine Speed Output Circuit

What causes a P0737 error code?

The most common causes of P0737 include: Open or short circuit in the circuit; Poor contact in TCM connectors; TCM module malfunction; Circuit Grounding Problems.

How do I fix a P0737 diagnostic trouble code?

To fix P0737: 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. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0737?

Limited driving only, diagnose soon

How much does it cost to fix P0737?

The estimated repair cost for P0737 is $56–278. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat