Defect Code 15

Defect Code 15:

Explanation:

Return pump defective or not operating

Possible cause:

Short or break on the control wire to ABS hydraulic unit (motor relay)

Short or break on the B+ supply wire from ABS/ASC+T control unit to ABS hydraulic unit

Short or break on a monitoring wire from ABS hydraulic unit to ABS/ASC+T control unit

Motor relay defective

Ground connection for pump motor defective

Pump motor defective

Troubleshooting:

Switch off ignition and detach control unit connector.

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

Check B+ supply wire from the ABS/ASC+T control unit connector (X11) Pin 20 to ABS hydraulic unit Pin 8 and repair if necessary.

Check control wire from the ABS/ASC+T control unite connector (X11) Pin 5 to ABS hydraulic unit Pin 12 and repair if necessary.

Check ground connection to ABS hydraulic unit and repair if necessary.

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