Headlamp Control Module/Headlamp Leveling Control Module Lost Communication With Right Headlamp Assembly On LIN Bus
Table of contents
U1532 BUICK Possible Causes
- Faulty Right Headlamp Assembly
- Right Headlamp Assembly harness is open or shorted
- Right Headlamp Assembly circuit poor electrical connection
- Faulty Headlamp Control Module/Headlamp Leveling Control Module
How do I fix code U1532 BUICK?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the U1532 BUICK code
The cost of diagnosing the U1532 BUICK code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
U1532 BUICK Description
The Local Interconnect Network (LIN) Bus consists of a single wire with a transmission rate of 10.417 Kbit/s. The serial data is transmitted over a LIN circuit between a master control module and other LIN devices within a particular subsystem. If serial data communication is lost between any of the LIN devices on the LIN bus network, the master control module will set a no communication code against the non-communicating LIN device. The Diagnostic Trouble Code (DTC) will set when a supervised periodic message to the Headlamp Control Module/Headlamp Leveling Control Module from the Right Headlamp Assembly has not been received.