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Home >> Mitsubishi >> 1996 >> Eclipse Base, Standard >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Circuit Tests >> DTC 52 - Motor Relay Circuit >> AWD
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DTC 52 - Motor Relay Circuit: AWD

  1. Check if Hydraulic Unit (HU) motor operates when vehicle speed exceeds 4 MPH. If motor does not operate, go to next step. If motor operates, check for short in harness. Repair as needed. Remove and test motor relay. See HYDRAULIC UNIT RELAYS  under COMPONENT TESTING. If relay is okay, go to next step. Replace relay if faulty.
  2. Disconnect HU 2-pin connector. Using a DVOM, check voltage between 2-pin connector terminal No. 11 (Red/Black wire) and ground. If battery voltage is present, go to next step. If battery voltage is not present, repair harness between fusible link No. 8 and 2-pin connector. See WIRING DIAGRAMS  .
  3. Connect hydraulic unit wiring harness. Disconnect ECU connector. Check resistance between ECU connector terminals No. 2 and 26. See Figure . Resistance should be 30-60 ohms. If resistance is not as specified, check and repair connectors and wiring harness between HU and ECU. See WIRING DIAGRAMS  . If resistance is as specified, go to next step.
  4. Check resistance between ECU connector terminal No. 5 and ground. Resistance should be .1-.3 ohm. If resistance is not as specified, repair wiring harness between HU and ECU. See WIRING DIAGRAMS  . If resistance is as specified, replace faulty ECU.
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