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Home >> Suzuki >> 2000 >> Swift GA, Standard >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brakes >> Diagnostic Tests >> DTC 18: Abs Enable Relay Coil Circuit Shorted To Battery >> Diagnostic Procedure
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Diagnostic Procedure

  1. Turn ignition on. Command ABS enable relay on, using scan tool relay test function. If scan tool indicates that ABS enable relay is on and battery voltage is greater than 10 volts, system is currently functioning correctly. See DIAGNOSTIC AIDS  . If scan tool does not indicate that ABS enable relay is on and battery voltage is greater than 10 volts, go to next step.
  2. Turn ignition switch to LOCK position. Remove ABS enable relay from underhood relay block. Disconnect EBCM 8-pin and 24-pin harness connectors. Turn ignition switch on. Measure voltage between ground and ABS enable relay connector terminal No. 1 (Black/Blue wire). If voltage is 2 volts or less, go to next step. If voltage is greater than 2 volts, repair Black/Blue wire for short to voltage.
  3. Measure resistance between ABS enable relay terminals No. 1 and 4. If resistance is less than 40 ohms, replace ABS enable relay. If resistance is 40 ohms or more, go to next step.
  4. Turn ignition switch to LOCK position. Inspect EBCM harness connectors. Ensure connectors are clean and tight. Reconnect EBCM connectors and install ABS enable relay. Turn ignition on. If DTC 18 resets, replace EBCM. If DTC 18 does not reset, system is currently functioning correctly. See DIAGNOSTIC AIDS  .
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