OBDII Code List

U0402 MERCURY - Invalid Data Received From TCM

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
Comments  |  Add Comment

U0402 MERCURY Possible Causes

  • Invalid data network concerns
  • data is transferred within the normal inter-module message, but contains known invalid data. The transmitting module logs a DTC related to the invalid data concern.
  • Missing message network concerns
  • missing message concerns are logged by the module upon failure to receive a message from another module within a defined retry period.

First diagnose U0402 MERCURY code

    Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.

U0402 MERCURY Tech Notes

Check for other Powertrain Control Module (PCM) codes or PCM related symptoms. Diagnose all other PCM codes or PCM related symptoms first.

Cost of diagnosing the U0402 MERCURY code

    Labor: 1.0

    The cost of diagnosing the U0402 MERCURY code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

U0402 MERCURY Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

U0402 Mercury Description

Network DTC concerns occur during module-to-module communication
OBDII Code U0402 Mercury - Invalid Data Received From TCM -

U0402 MERCURY More Information

Need more information on how to fix the U0402 MERCURY code?
Get Access to Factory Service Manuals

Need more help?

Get the U0402 Mercury code diagnosed by a professional: Find a repair shop in your area

Related Information

U0402 MERCURY Comments

Help us improve Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the U0402 Mercury code? Have you replaced any parts?
Any information is appreciated. Thanks
Top ⇧