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Home >> Jeep >> 1992 >> Wrangler Base, 2.5 P >> Repair and Diagnosis >> External Pages >> Different car >> Section 96 (Anti-Lock Brake System) >> Verification Tests >> Test VER-1A - System Verification Test
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Test VER-1A - System Verification Test

WARNING: This page is about a different car, the 1992 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
  1. 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.
  2. 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 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  .
  3. 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, TEST VER-1C  . If warning light is flashing, depress brake pedal. Using DRB-II, actuate left front outlet valve.
  4. If brake pedal "drop" was not felt when valve was actuated, replace hydraulic control unit. Perform 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.
  5. If brake pedal "drop" was not felt when valve was actuated, replace hydraulic control unit. Perform 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.
  6. If brake pedal "drop" was not felt when valve was actuated, replace hydraulic control unit. Perform 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.
  7. 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.
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