SERVICE MANUAL
  Applies to: Hyundai Coupe/Tiburon 1998-2000
GROUP
Brake Systems Anti-lock Brake System
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CIRCUIT INSPECTION (ABS RELAY BOX CIRCUIT - FAIL SAFE RELAY) 

Fail safe relay supplies battery voltage to the modulator. After the ignition switch is turned ON, the relay goes on, if the initial check is good.

If a problem occurs in the ABS system, the ABSCM disables the relay and the ABS is disabled.

DTC
Code
DISPLAY ON
SCAN TOOL
Symptom
Possible Cause
41
FAIL SAFE RELAY CIRCUIT - SHORT
Fail safe relay not set activeContact signal stay close
  • Fail safe relay
  • Harness between Relay box and ABSCM
  • ABSCM
42
FAIL SAFE RELAY CIRCUIT - OPEN
Fail safe relay set activeContact signal stay not closed
  • Fail safe Relay
  • Harness between Relay box and Power source
  • Harness between Relay box and ABSCM
  • ABSCM
43
FAIL SAFE RELAY COIL
Fail safe relay coil not OK
WIRING DIAGRAM
INSPECTION PROCEDURE
  1. Check ABS power supply

  1. Check the ABS Relay Box (Fail safe relay)

  1. Check the Fail safe relay

  1. Check the ABSCM harness