SERVICE MANUAL
  Applies to: Hyundai Coupe/Tiburon 1998-2000
GROUP
Brake Systems Anti-lock Brake System
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DTC - 56, 57 
POWER SOURCE VOLTAGE

Detection of battery out of the function range for the system.

DTC
Code
 DISPLAY ON
SCAN TOOL
 Symptom
 Possible cause
56
 BATTERY VOLTAGE - LOW
 ABSCM power supply voltage is 8.9V or below
  • Battery
  • Charging circuit
  • Harness connector between battery and ABSCM, ABSCM and body ground
57
 BATTERY VOLTAGE - HIGH
 ABSCM power supply voltage is 16.2V or higher
WIRING DIAGRAM
INSPECTION PROCEDURE
  1. Check the ABSCM fuse.

  1. Check voltage between Battery (+) and GND of ABSCM connector.

  1. Check continuity between the ABSCM connector GND and Body GND.