Operation CHARM: Car repair manuals for everyone.

Defect Code 14



Defect Code 14:

Explanation:

Valve relay not operating or defective

Possible cause:

Short or break on the control wire to the ABS hydraulic unit Short or break on B+ supply wire from return pump motor relay to valve relay
Short or break on monitoring wire from ABS hydraulic unit to ABS/ASC+T control unit
Valve relay defective

Troubleshooting:

Ensure valve relay is firmly fitted and check for corrosion at the contacts, renew if necessary
Switch on ignition and check whether the valve relay pulls up.

Valve relay pulls up:

- Switch off ignition and detach control unit connector
- Check monitoring wires from ABS hydraulic unit Pin 4 to ABS/ASC+T control unit Pin 17 and Pin 23 and repair if necessary

Valve relay does not pull up:

- Switch off ignition and detach control unit connector
- Check B+ supply wire from the ABS/ASC+T control unit Pin 20 to valve relay Pin 86 and repair If necessary
- Check control wire from the ABS/ASC+T control unit Pin 7 to ABS hydraulic unit Pin 2 and repair If necessary

Replace ABS/ASC+T control unit If no defect can be found on the wiring harness side.