OBD Guide

U1013

Invalid Internal Control Module Monitoring Data Received From TCM

U1013 is an OBD-II diagnostic trouble code meaning: Invalid Internal Control Module Monitoring Data Received From TCM. Common causes: automatic transmission controller (tcm) malfunction, damage to can bus wiring. Estimated repair cost: $56–278.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Malfunction indicator light comes on
  • Incorrect operation of the automatic transmission
  • Loss of engine power
  • Gear shifting problems
  • Reduced efficiency of stabilization systems

Causes

  • Automatic transmission controller (TCM) malfunction
  • Damage to CAN bus wiring
  • Bad contacts in TCM connectors
  • Corrosion or oxidation of contacts
  • TCM power problems

How to Fix

  1. Diagnosing the CAN bus status with a multimeter
  2. Checking the continuity of wiring to the TCM
  3. Cleaning TCM connector contacts
  4. Checking TCM Power and Ground
  5. Replacing or flashing the TCM if necessary

Related codes

FAQ

What does the U1013 code mean?

U1013 is an OBD-II diagnostic trouble code that indicates: Invalid Internal Control Module Monitoring Data Received From TCM

What causes a U1013 error code?

The most common causes of U1013 include: Automatic transmission controller (TCM) malfunction; Damage to CAN bus wiring; Bad contacts in TCM connectors; Corrosion or oxidation of contacts.

How do I fix a U1013 diagnostic trouble code?

To fix U1013: Diagnosing the CAN bus status with a multimeter. Checking the continuity of wiring to the TCM. Cleaning TCM connector contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U1013?

Limited driving only, diagnose soon

How much does it cost to fix U1013?

The estimated repair cost for U1013 is $56–278. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat