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HOMESERVICE MANUALSHYUNDAI1998TIBURON BASE, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESANTI-LOCK BRAKESANTI-LOCK BRAKE SYSTEMCIRCUIT TESTSDTC 44, 45, 54, 55
1998 Hyundai Tiburon Base, Standard

DTC 44, 45, 54, 55

1998 Hyundai Tiburon Base, StandardSECTION DTC 44, 45, 54, 55
CODE DEFINITION - DTC 44, 45, 54, 55

Code Definition
DTC 44 SHORT TO GROUND IN ABS WARNING LIGHT CIRCUIT
DTC 45 OPEN DIODE CIRCUIT FOR ABS WARNING LIGHT
DTC 54 SHORT TO BATTERY IN ABS WARNING LIGHT CIRCUIT
DTC 55 OPEN IN ABS WARNING LIGHT CIRCUIT
  1. Turn ignition on. If ABS warning light is off, go to step 4). If ABS warning light is on, turn ignition off. Disconnect negative battery cable. Disconnect ABS ECM connector. ABS ECM is located on right side of trunk, behind trim panel. Disconnect relay box connectors. See Figure . Reconnect negative battery cable. Turn ignition on. Check ABS warning light. If light is off, go to next step. If light is on, go to step 5).
  2. Turn ignition off. Check for continuity between ground and terminal No. 7 (Yellow/Black wire) of relay box 8-pin connector (wiring harness side). See Figure . If continuity exists, repair wiring harness. If continuity does not exist, go to next step.
  3. Disconnect negative battery cable. Ensure ABS ECM connector is still disconnected. Check for continuity between ground and terminal No. 17 of ABS ECM wiring harness connector. See Figure . If continuity exists, repair short to ground in wiring harness. If continuity does not exist, no fault is indicated at this time. Fault may be intermittent.
  4. Check fuse No. 10 in instrument fuse panel. If fuse is okay, go to next step. If fuse is blown, check wiring for cause of blown fuse. Repair wiring as necessary and replace fuse.
  5. Disconnect relay box connector. See Figure . Disconnect ABS ECM connector. ABS ECM is located on right side of trunk, behind trim panel. Connect a jumper wire between ground and terminal No. 3 (Yellow/Green wire) of relay box 8-pin connector (wiring harness side). See Figure . Turn ignition on. Check ABS warning light. If warning light is on, go to next step. If warning light is off, locate and repair open in Yellow/Green wire, or replace bulb.
  6. Check for continuity between ground and terminal No. 6 (Black wire). If continuity exists, go to next step. If continuity does not exist, locate and repair open in Black wire.
  7. Check for continuity between ground and terminals No. 2 (Blue/Red wire) and No. 7 (Yellow/Black wire) of relay box 8-pin connector. If continuity exists, go to next step. If continuity does not exist, go to step 12).
  8. Check for continuity between ground and terminals No. 3 (Yellow/Green wire) and No. 6 (Black wire) of relay box 8-pin connector. If continuity exists, go to next step. If continuity does not exist, go to step 12).
  9. Check for continuity between terminal No. 4 (Blue wire) of relay box 8-pin connector and terminal No. 1 (Black/Light Green wire) of relay box 2-pin connector. If continuity exists, go to step 12). If continuity does not exist, go to next step.
  10. Connect a jumper wire between positive battery terminal and terminal No. 2 (Blue/Red wire) of relay box 8-pin connector. Connect a second jumper wire between negative battery terminal and terminal No. 7 (Yellow/Black wire) of relay box 8-pin connector. DO NOT apply battery voltage for more than 2 seconds. Check for continuity between terminals No. 6 (Black wire) and No. 1 (Red/Green wire) of relay box 8-pin connector. If continuity does not exist, go to next step. If continuity exists, go to step 12).
  11. Check for continuity between terminals No. 1 (Red/Green wire) of relay box 8-pin connector and No. 1 (Black/Light Green wire) of relay box 2-pin connector. If continuity exists, no fault is indicated at this time. If continuity does not exist, go to next step.
  12. Turn ignition off. Remove relay box cover. See Figure . Remove fail safe relay. Check for continuity between relay terminals. See TESTING FAIL SAFE RELAY table. See Figure . If continuity is not as specified, replace relay. If continuity is as specified, go to next step.
    TESTING FAIL SAFE RELAY

    Relay Terminals No. Continuity
    1 & 5 No
    2 & 4 Yes
    3 & 5 Yes
  13. Connect jumper wire between positive battery terminal and terminal No. 2 of fail safe relay. Connect a second jumper wire between negative battery terminal and terminal No. 4 of fail safe relay. See Figure . Check for continuity between relay terminals No. 1 and 5. Continuity should exist. Check for continuity between relay terminals No. 3 and 5. No continuity should exist. If continuity is not as specified, replace relay. If continuity is as specified, no fault is indicated at this time. Fault may be intermittent.
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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
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