ABS wheel speed sensor wiring to rear axle, removing and installing

Required special tools 

Fig 1: VAS 1978 Wiring Repair Set

Courtesy of VOLKSWAGEN UNITED STATES, INC.

• VAS 1978 Wiring harness repair set

Removing 

• Obtain radio code on vehicles with coded radio.
• Disconnect battery
• Disconnect wheel speed sensor wiring connector.
• Remove rear interior side panel trim.

Refer to 70 - INTERIOR TRIM

Fig 2: Identifying Insulation At Shrink Connection

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• Strip insulation (arrow) from shrink connection.
• Cut speed sensor wiring in front of spliced connection with stripping pliers from VAS 1978 wiring repair kit and remove faulty wiring.

Fig 3: Stripping Insulation At Wiring Using Stripping Pliers

Courtesy of VOLKSWAGEN UNITED STATES, INC.

• Strip insulation at wiring end by 15 mm (5/8 in.) using stripping pliers from repair kit and fold over stripped wire portion.
• Install new speed sensor wiring.
• Connect wheel speed sensor to speed sensor wiring.

Fig 4: Identifying Wheel Speed Sensor Wire

Courtesy of VOLKSWAGEN UNITED STATES, INC.

• Secure wheel speed sensor wire (arrows).

• Cut 2-pin connector at new speed sensor wire (if installed) using stripping pliers from repair kit.
• Strip 15 mm (5/8 in.) insulation off wire end and fold over stripped wire.
• Connect wheel speed sensor wire using correct connector from wiring repair kit VAS 1978.