System Verification Test
- Disconnect all previously connected jumper wires. Reconnect all previously disconnected connectors. Reinstall all previously removed relays. Replace any blown fuses. Using DRB-II, erase fault messages. Cycle ignition off and then on. Using DRB-II, monitor read faults display for 3 minutes. If DRB-II displays any faults, perform TEST 1A.
- If DRB-II does not display any faults, using DRB-II, read brakelight switch input. Depress brake pedal. If DRB-II does not display PRESSED, perform VERIFICATION TEST VER-1B. If DRB-II displays PRESSED, using DRB-II, read "G" SWITCH input. If DRB-II does not display "G" SWITCH #1 CLOSED, "G" SWITCH #2 CLOSED, perform TEST 3A.
- If DRB-II displays No. 1 and 2 "G" switch CLOSED, with DRB-II in ABS TEVES diagnostic mode, check ANTI-LOCK warning light. If warning light is off, perform, VERIFICATION TEST VER-1C. If warning light is flashing, depress brake pedal. Using DRB-II, actuate left front outlet valve.
- If brake pedal "drop" was not felt when valve was actuated, replace hydraulic control unit. Perform VERIFICATION TEST VER-1A. If brake pedal "drop" was felt when valve was actuated, release brake pedal. Depress brake pedal. Using DRB-II, actuate right front outlet valve.
- If brake pedal "drop" was not felt when valve was actuated, replace hydraulic control unit. Perform VERIFICATION TEST VER-1A. If brake pedal "drop" was felt when valve was actuated, release brake pedal. Depress brake pedal. Using DRB-II, actuate rear outlet valve.
- If brake pedal "drop" was not felt when valve was actuated, replace hydraulic control unit. Perform VERIFICATION TEST VER-1A. If brake pedal "drop" was felt when valve was actuated, road test vehicle for a minimum of 5 minutes and perform several anti-lock braking stops.
- Using DRB-II, read fault messages. If DRB-II displays any faults, perform TEST 1A. If DRB-II displays no faults, system is operating properly.