OBD Guide

U0169

Lost Communication With Sunroof Control Module

U0169 is an OBD-II diagnostic trouble code meaning: Lost Communication With Sunroof Control Module. Common causes: open or short circuit in the power supply, damage to the wiring harness to the sunroof module. Estimated repair cost: $17–89.

Severity
Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Sunroof does not open/close
  • Hatch works intermittently
  • Fault indication on the instrument panel
  • Lack of response to control buttons
  • Spontaneous opening/closing of the hatch

Causes

  • Open or short circuit in the power supply
  • Damage to the wiring harness to the sunroof module
  • Sunroof control module malfunction
  • Corrosion of connector contacts
  • Problems with the CAN bus

How to Fix

  1. Check the sunroof circuit fuse
  2. Inspect the wiring harness for damage
  3. Check the sunroof module connector contacts
  4. Test the sunroof control module
  5. Carry out CAN bus diagnostics

Related codes

Error U0169 by Vehicle Brand

FAQ

What does the U0169 code mean?

U0169 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Sunroof Control Module

What causes a U0169 error code?

The most common causes of U0169 include: Open or short circuit in the power supply; Damage to the wiring harness to the sunroof module; Sunroof control module malfunction; Corrosion of connector contacts.

How do I fix a U0169 diagnostic trouble code?

To fix U0169: Check the sunroof circuit fuse. Inspect the wiring harness for damage. Check the sunroof module connector contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U0169?

Yes, but get it checked soon

How much does it cost to fix U0169?

The estimated repair cost for U0169 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat