Diagnostic trouble code (DTC) information

Condition 

Fig 1: Identifying Wheel Sensor

Courtesy of VOLVO CARS OF NORTH AMERICA.

Diagnostic trouble code (DTC) ABS-0010 or ABS-0020 is stored (depending on the wheel sensor) if the control module registers that the signal from the wheel sensor is missing.

Substitute Value 

• ABS system is blocked.
• Anti-spin function is blocked.
• EBD function is blocked if two or more sensors are faulty.

Possible Source 

• Contact resistance in terminals.
• Open-circuit, short-circuit to ground or supply voltage in power supply to wheel sensor.
• Signal cables short-circuited to each other.
• Short-circuit to supply voltage or ground in the signal cable.
• Open-circuit in the signal cable.
• Defective wheel sensor.
• Defective control module.

Fault symptom[s] 

• ABS warning lamp lit.
• Anti-spin warning lamp lit.
• Brake circuit not functioning, warning lamp lit.
• No ABS function.
• Anti-spin does not function.