U2163
Lost Communication With Left Rear Door Module
U2163 is an OBD-II diagnostic trouble code meaning: Lost Communication With Left Rear Door Module. Common causes: broken or damaged wires in the door harness, oxidation or corrosion of connector contacts. Estimated repair cost: $17–89.
Symptoms
- The left rear door power window does not work
- The central locking on the left rear door does not work
- Lights or other door functions do not work
- Error message on the dashboard
- Periodically enable/disable door functions
Causes
- Broken or damaged wires in the door harness
- Oxidation or corrosion of connector contacts
- Left rear door module malfunction
- Problems with module power or grounding
- Damage to the central control unit
How to Fix
- Diagnostics of the CAN bus and voltage on the module
- Checking the integrity of the door wiring harness
- Cleaning the door module connector contacts
- Replacing a faulty door module if necessary
- Checking and repairing power and grounding circuits
Related codes
FAQ
What does the U2163 code mean?
U2163 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Left Rear Door Module
What causes a U2163 error code?
The most common causes of U2163 include: Broken or damaged wires in the door harness; Oxidation or corrosion of connector contacts; Left rear door module malfunction; Problems with module power or grounding.
How do I fix a U2163 diagnostic trouble code?
To fix U2163: Diagnostics of the CAN bus and voltage on the module. Checking the integrity of the door wiring harness. Cleaning the door module connector contacts. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U2163?
Yes, but get it checked soon
How much does it cost to fix U2163?
The estimated repair cost for U2163 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat