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Home >> Porsche >> 1994 >> 911 Turbo >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System & All-Wheel Drive System >> Trouble Shooting >> Code 15, Abs/All-Wheel Drive Control Unit
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Code 15, Abs/All-Wheel Drive Control Unit

  1. Check electrical circuits at ABS/AWD control unit. See ABS/ALL-WHEEL DRIVE CONTROL UNIT & CIRCUITS  under DIAGNOSIS & TESTING. Ensure there is no electrical interference from ignition system.
  2. Ensure all pins/connectors make good contact (eliminate high resistance or intermittent contact). Ensure ABS/AWD control unit ground circuits are okay. Ground point is located on right side of trunk (luggage compartment). If all ABS/AWD circuits and pins/connectors are okay, replace ABS/AWD control unit.
NOTE: If replacing ABS/AWD control unit, ensure first 6 digits of replacement ABS/AWD control unit are 964 618 --- ---.