B3948

Left Front Turn Signal Circuit Short to Ground

DTC B3948, sometimes indicated as B394800 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle body.

  • B3948 02: Left Front Turn Signal Circuit Short to Ground
  • B3948 04: Left Front Turn Signal Circuit Open

DTC Trouble Code Search
Bulletins

Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.

  • 030842009 - EXTERIOR LIGHTING
    SATURN: One or both daytime running lamps (drl) are inoperative, diagnostic trouble code (dtc) B3948 and/or B3949 may be set. *tt erratic front turn signal operation when using a cell phone charger in either accessory power outlet. *tt
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