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DTC 32: EHCU Pump Motor & Motor Relay Circuit

  1. Turn ignition off. Disconnect EHCU harness connector. Using DVOM, measure voltage between ground and EHCU harness connector terminal No. 13 (White/Green wire). If battery voltage is present, go to next step. If battery voltage is not present, check condition of ABS fuse (40-amp), located in engine compartment fuse block. Also, check White/Green wire between fuse and EHCU for an open or short to ground. Repair as necessary.
  2. Using DVOM, ensure continuity is present between ground and EHCU harness connector terminal No. 12 (Black wire). Repair as necessary.
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