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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Headlights >> Lighting System - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> Headlamp Leveling Malfunction (Automatic) >> Diagnostic Fault Information

Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
LIN Serial Data - Left Headlamp Leveling Actuator B3440 03, U1511 00, U1521 00, U1531 00 B3440 03, U1511 00, U1521 00, U1531 00 B3440 03, U1511 00, U1521 00, U1531 00 -
LIN Serial Data - Right Headlamp Leveling Actuator B3435 00, U1512 00, U1522 00, U1532 00 B3435 00, U1512 00, U1522 00, U1532 00 B3435 00, U1512 00, U1522 00, U1532 00 -
Headlamp Control Module B+ 1 1 - -
Headlamp Leveling Actuator - Left B+ B3435 03 B3435 03 B3435 00 -
Headlamp Leveling Actuator - Right B+ B3440 03 B3440 03 B3440 00 -
Suspension Position Sensor 5V Reference - Left Front B3415 02 1 B3415 01 -
Suspension Position Sensor 5V Reference - Left Rear B3415 02 1 B3415 01 -
Suspension Position Sensor Signal - Left Front B3410 06 B3410 06 B3410 01 B3410 08
Suspension Position Sensor Signal - Left Rear B3420 06 B3420 06 B3420 01 B3420 08
Suspension Position Sensor Low Reference - Left Front - 1 - -
Suspension Position Sensor Low Reference - Left Rear - 1 - -
Headlamp Control Module Ground - 1 - -
Headlamp Leveling Actuator - Left Ground - B3435 03 - -
Headlamp Leveling Actuator - Right Ground - B3440 03 - -
1. Headlamp Leveling Malfunction