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 - MOTOR PUMP RELAY, SHORT GND) 

Motor pump relay supplies battery voltage to the motor pump. The ABSCM switches the motor relay ON and operates the ABS motor pump.

If a problem occurs in the ABS system, the ABSCM disables the motor pump relay.

DTC
Code
 DISPLAY ON
SCAN TOOL
 Symptom
 Possible cause
36
 MOTOR PUMP RELAY - SHORT GND
 Motor pump relay circuit open or short to ground
  • Motor pump relay
  • ABSCM
  • Harness between the Relay Box and the ABSCM
  • Harness between the power supply and the relay box
39
 MOTOR PUMP CIRCUIT - SHORT GND
 Motor pump short to ground
  • Motor pump relay
  • Harness between the ABS modulator and Relay Box
  • Harness between the power supply and Relay Box
  • Motor pump
WIRING DIAGRAM
INSPECTION PROCEDURE
  1. Check for voltage between the Relay Box terminal E58 and BODY GND.

  1. Check the Motor pump relay (Motor pump relay).

  1. Check the Motor pump relay.

  1. Check for resistance between each terminal of the ABSCM connector