Diagnostic trouble code information

Condition 

Fig 1: Control Module For Steering Wheel Angle Sensor

Courtesy of VOLVO CARS OF NORTH AMERICA.

The steering wheel angle sensor has two circuits each with 4 LEDs and 4 receptors which read off their individual track on a perforated code disc. One circuit measures the steering wheel angle and the other measures steering wheel revolutions. If the control unit registers that the signal for any of the steering wheel angle signals A, B, IX, IY, R1, R2, R3 or R4 is too high, diagnostic trouble code SAS-0004, 0006, 0007, 0008, 0010, 0012, 0014, 0016 or 0018 is set, depending on the steering wheel angle signal.

Substitute Value 

• Stabilising function disconnected.
• Anti-spin function blocked.

Possible Source 

• Contact resistance or oxidation in connections or connectors.
• Open circuit.
• Short circuit to ground.
• Defective SAS element.

Fault symptom[s] 

• Anti-spin warning lamp is on.
• Stabilising function not working.
• Anti-spin does not work.