U0142
Lost Communication With Body Control Module B
Severity: HIGH
Symptoms
- Lack of access to some vehicle functions
- Interior or dashboard lighting not working
- Problems with central locking
- Errors in the operation of power windows
- The alarm may not work correctly
Causes
- Open or short circuit in wiring harness
- Oxidized contacts in connectors
- Body Control Module (BCM) Malfunction
- Module power problems
- Damage to the CAN network interface
How to Fix
- Check the integrity of the wiring harness between the modules
- Clean and check all contacts in connectors
- Check BCM power and ground
- Scan all modules for additional errors
- Replace the body control module if necessary