Pinpoint Test AA: DTC B1A98:88: Notes
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
- DTC B1A98:88 (LIN Bus Circuit #1: Bus off) - sets continuous and on-demand by the Headlamp Control Module (HCM) if communication is lost to the headlamps due to a circuit fault on the communication circuit between the HCM and the headlamps.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Headlamp assembly
- HCM