LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 334 (Lighting System) >> Diagnostic Information and Procedures >> DTC B3948 or B3949: Front Turn Signal >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
F7DA (BCM 3) Fuse B+ B3881 01, B3881 04, B3949 01, B3949 04 B3881 01, B3881 04, B3949 01, B3949 04 - -
F13DA (BCM 7) Fuse B+ B3948 01, B3948 04 B3948 01, B3948 04 - -
Turn Signal Control - Left Front B3948 02 B3948 01, B3948 04 B3948 01, B3948 04
1
-
Turn Signal Control - Right Front B3949 02 B3949 01, B3949 04 B3949 01, B3949 04 -
Stop/Turn Signal Lamp Control - Left Rear B3881 02 B3881 01, B3881 04 B3881 01, B3881 04 -
Stop/Turn Signal Lamp Control - Right Rear B3882 02 B3882 01, B3882 04 B3882 01, B3882 04 -
Tail Lamp Assembly - Left Ground - 1 - -
Tail Lamp Assembly - Right Ground - 1 - -
Turn Signal - Left Front Ground - 1 - -
Turn Signal - Right Front Ground - 1 - -
1. Turn Signal Lamps and/or Indicators Malfunction