Volkswagen Workshop Service and Repair Manuals

Warning lamp K47

• ◆ If the ABS warning lamp (K47) -2- does not go out after switching on ignition and completion of test sequence then the fault may be:

• -a- Voltage supply is below 10 Volt
• -b- There is a fault in the ABS
• -c- There has been a sensor fault after last startíng the vehicle (sporadic).
• -d- Open circuit between pin 1 of ABS warning lamp module and control unit pin 16.
• -e- The ABS warning lamp module is defective
• With an ABS fault the anti-locking brake system remains switched off, but the conventional braking system remains fully functional. In the case of sensor fault -c- the ABS warning lamp will extinguish after restarting the engine and 20 km/h (approx. 13 mph) is exceeded.

Warning lamps K47 and K118

• ◆ If the ABS warning lamp (K47) -2- goes out but the brake system warning lamp (K118) -1- remains on then the fault may be:

• -a- The handbrake is pulled on
• -b- The brake fluid level is too low
• -c- There is a fault in the control of the brake system warning lamp (K118) => Current flow diagram.

• ◆ If both the ABS warning lamp -2- and the brake system warning lamp -1- do not go out then the ABS and EBPD (electronic brake pressure distribution) is non-functional. In this case a braking behaviour change is to be reckoned with as the brake pressure to the rear wheels will not be regulated.