OBD Guide
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U156D

Chassis Control Module Lost Communication With Transmission Shift Lever On LIN Bus

U156D is an OBD-II diagnostic trouble code meaning: Chassis Control Module Lost Communication With Transmission Shift Lever On LIN Bus. Common causes: open or short circuit in lin circuit, gear selector malfunction. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Incorrect gear shifting
  • Malfunction indicator light comes on
  • Lack of response to gear shifting
  • Transmission transition to emergency mode

Causes

  • Open or short circuit in LIN circuit
  • Gear selector malfunction
  • Chassis module power problems
  • Oxidation of contacts in connectors
  • Chassis control module malfunction

How to Fix

  1. Check the integrity of the LIN wiring harness
  2. Diagnose chassis module power supply
  3. Check connectors for oxidation
  4. Test the gear selector
  5. If necessary, replace the faulty module

Related codes

U156CU156EU156F

FAQ

What does the U156D code mean?

U156D is an OBD-II diagnostic trouble code that indicates: Chassis Control Module Lost Communication With Transmission Shift Lever On LIN Bus

What causes a U156D error code?

The most common causes of U156D include: Open or short circuit in LIN circuit; Gear selector malfunction; Chassis module power problems; Oxidation of contacts in connectors.

How do I fix a U156D diagnostic trouble code?

To fix U156D: Check the integrity of the LIN wiring harness. Diagnose chassis module power supply. Check connectors for oxidation. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U156D?

Limited driving only, diagnose soon

How much does it cost to fix U156D?

The estimated repair cost for U156D is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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