High Beams

WARNING: This page is about a different car, the 2007 Lincoln MKX and 2007 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.

The SJB sends a reference signal to the multifunction switch through circuits CLF27 (GN/BN) and CLF17 (WH/OG). When the multifunction switch is placed in the FLASH-TO-PASS or HIGH BEAM position, the voltage signal is routed to ground. When the SJB detects a request for flash-to-pass or high beams (when the low beams are on), the SJB energizes the high beam relay (integrated into the SJB), which routes voltage through circuit CLF08 (YE/VT) to the headlamps.

DTC Description	Fault Trigger Conditions
B1472 - Lamp Headlamp Input Circuit Short to Ground	An on-demand DTC that sets when the SJB detects the headlamps on input circuit is short to ground.
B1510 - Flash To Pass Switch Circuit Short to Ground	An on-demand DTC that sets when the SJB detects the flash-to-pass request input circuit is short to ground.
B1696 - Autolamp On Circuit Short To Ground	An on-demand DTC that sets when the SJB detects the autolamps on request input circuit is short to ground.
B2008 - Wipers On Signal Circuit Short to Ground	An on-demand DTC that sets when the SJB detects the wipers on input circuit is short to ground.
B2A22 - Headlamp Off Circuit Open	An on-demand DTC that sets when the SJB detects the headlamp switch off input circuit open.
B2A23 - High Beam Input Circuit Short to Ground	An on-demand DTC that sets when the SJB detects a short to ground on the high beam request input circuit.
B2A2E - Right Front Lamp Low Beam Circuit Open	An on-demand DTC that sets when the SJB detects the RH low beam output circuit shorted to voltage.
B2A30 - Left Front Lamp Low Beam Circuit Open	An on-demand DTC that sets when the SJB detects the LH low beam output circuit shorted to voltage.

This pinpoint test is intended to diagnose the following:

Wiring, terminals or connectors
Joint connector
Headlamp switch
Multifunction switch
Windshield wiper motor
SJB