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 a monitoring wire from ABS hydraulic unit to ABS/ASC+T control unit

Valve relay defective

Note:

In extreme driving situations (skidding) with the ASC+T system switched off, it is possible that the ABS system cuts out and the defect code 14 (valve relay) is stored. Simply clear the defect code memory in this case.


Troubleshooting:

Ensure valve relay is firmly fitted and check for corrosion at the contacts, renew it necessary.

Switch on ignition and check whether the valve relay energizes. Valve relay energizes:

- Switch off ignition and detach control unit connector

- Check monitoring wires from the ABS hydraulic unit Pin 4 to ABS/ASC+T control unit Pin 17 and Pin 23 and repair if necessary

Valve relay does not energize:

- 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.