U1522
Headlamp Control Module/Headlamp Leveling Control Module Lost Communication With Right Headlamp On LIN Bus
U1522 is an OBD-II diagnostic trouble code meaning: Headlamp Control Module/Headlamp Leveling Control Module Lost Communication With Right Headlamp On LIN Bus. Common causes: broken lin bus wire to the right headlight, poor contact in headlight connector. Estimated repair cost: $17–111.
Symptoms
- Right headlight doesn't work
- Right headlight flashing
- Lighting system error on instrument panel
- Incorrect position of the right headlight (if there is a correction)
Causes
- Broken LIN bus wire to the right headlight
- Poor contact in headlight connector
- Right headlight malfunction
- Problems with the headlight control module
- Short circuit in LIN circuit
How to Fix
- Check the integrity of the wiring to the right headlight
- Clean the contacts in the headlight and control module connectors
- Check the power and ground of the headlight
- Scan other modules on the LIN bus
- Replace the right headlight if necessary
Related codes
FAQ
What does the U1522 code mean?
U1522 is an OBD-II diagnostic trouble code that indicates: Headlamp Control Module/Headlamp Leveling Control Module Lost Communication With Right Headlamp On LIN Bus
What causes a U1522 error code?
The most common causes of U1522 include: Broken LIN bus wire to the right headlight; Poor contact in headlight connector; Right headlight malfunction; Problems with the headlight control module.
How do I fix a U1522 diagnostic trouble code?
To fix U1522: Check the integrity of the wiring to the right headlight. Clean the contacts in the headlight and control module connectors. Check the power and ground of the headlight. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U1522?
Yes, but get it checked soon
How much does it cost to fix U1522?
The estimated repair cost for U1522 is $17–111. Actual cost depends on your vehicle, location, and labor rates.
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