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Home >> Volvo >> 2004 >> S80 Base, 2.5 59, FWD >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti Lock Brake System (Abs) & Brake Control Module (BCM) Diagnostic Trouble Codes >> Abs-00A7: Power Supply Sensor. Signal Faulty. Intermittent Fault (1999-2001) >> Faulty signal. Intermittent fault >> Checking wiring and sensors

Checking wiring and sensors

Check the cables between the sensors and the ABS control module:

For yaw rate sensor 1: 

For yaw rate sensor 2: 

For the lateral acceleration sensor: 

For brake pressure sensor 1: 

For brake pressure sensor 2: 

Check for contact resistance and oxidation. Check for an intermittent open-circuit. Check for an intermittent short-circuit to ground. Check for an intermittent short-circuit to supply voltage.

Remedy as necessary.

Other information: 

Fig 1: Identifying Pedal Position Sensor Connector
GLL104188Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 2: Identifying Ohmmeter
GLL101042Courtesy of VOLVO CARS OF NORTH AMERICA.