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 B+) 

The 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
35
 MOTOR PUMP
 Motor pump does not operate
  • Motor pump
  • Motor pump relay
  • Harness between the ABS and relay box
  • Harness between power supply and relay box
37
 MOTOR PUMP RELAY - SHORT BATT
 Motor pump relay circuit short to battery
  • Motor pump relay
  • ABSCM
  • Harness between the Relay Box and the ABSCM
38
 MOTOR PUMP CIRCUIT - SHORT BATT
 Motor pump short to 12V or circuit open
  • Motor pump relay
  • Harness between the ABS modulator and the 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 E06-1 and BODY GND. Check motor pump.

  1. Check ABS-Relay Box (Motor pump relay)

  1. Check resistance between each terminal of ABSCM connector

  1. Check Motor pump relay