BATTERY VOLTAGE CHECK AND DISPLAY
Prior to beginning any troubleshooting, you must test the 12-volt voltage supply to the ABS to ensure
Hook up Pro-Link (page 3-100.2).
Access Pro-Links ABS Function Menu and Component Tests Menu.
Access VEHICLE VOLTAGE test and read the ABS voltage.
If voltage shown is 11-13 v, check Pro-Links STORED FAULTS and continue with the Pro-Link
troubleshooting and testing procedures.
If voltage does not show 11-13 v, refer to battery circuit troubleshooting (page 3-23).
1. Correct all existing faults until no faults exist.
2. Clear all stored faults from memory.
3. Verify that Pro-Link display states NO to both
existing and stored faults. If YES is displayed for
either function, repeat step 1 and 2 as required
until NO is displayed for both functions.
4. Test ABS
(a) Verify that vehicle voltages are11-15 v.
(b) Verify for ABS valves locations andl fuctions
(c) Verify four wheel sensor Iocatlons and functions
Verify function of retarder relay.
(e) Verify function of ABS
5. Test ATC components.
Perform only if ATC option is installed on vehicle.
(a) Verify two ATC valve locations and functions.
(b) Verify function of engine datalink by reducing engine torque.
(c) Verify function of ATC lamp.
6. Test function of ABS and ATC switches.
7. Test drive vehicle and ensure that ABS lamp turns off when vehicle reachers a speed of 6 mph (10 kph).