OBD Guide

P151D

Transmission Control Module Engine Shutdown Request Signal Message Counter Incorrect

P151D is an OBD-II diagnostic trouble code meaning: Transmission Control Module Engine Shutdown Request Signal Message Counter Incorrect. Common causes: problems with the can bus, transmission control module (tcm) malfunction. 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
  • Possible problems with gear shifting
  • Reduced engine power
  • The car may go into emergency mode

Causes

  • Problems with the CAN bus
  • Transmission control module (TCM) malfunction
  • ECM software problems
  • Damage to the wiring harness between the modules
  • Bad contacts in connectors

How to Fix

  1. Check connections and wiring integrity between TCM and ECM
  2. Read error codes using a diagnostic scanner
  3. Update control module software
  4. Check the functionality of the CAN bus
  5. If necessary, replace the transmission control module

Related codes

FAQ

What does the P151D code mean?

P151D is an OBD-II diagnostic trouble code that indicates: Transmission Control Module Engine Shutdown Request Signal Message Counter Incorrect

What causes a P151D error code?

The most common causes of P151D include: Problems with the CAN bus; Transmission control module (TCM) malfunction; ECM software problems; Damage to the wiring harness between the modules.

How do I fix a P151D diagnostic trouble code?

To fix P151D: Check connections and wiring integrity between TCM and ECM. Read error codes using a diagnostic scanner. Update control module software. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P151D?

Limited driving only, diagnose soon

How much does it cost to fix P151D?

The estimated repair cost for P151D is $56–278. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat