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DTC C1217: Pump Motor Shorted To Ground

  1. Perform diagnostic system check. See DIAGNOSTIC SYSTEM CHECK  under DIAGNOSIS & TESTING. After performing diagnostic system check, go to next step.
  2. Turn ignition off. Disconnect EBCM harness connector. Connect Universal Pinout Box (J-39700) using Cable Adapter (J-39700-99) to EBCM harness connector only. Check both ground circuits of EBCM including EBCM ground for open or high resistance. Repair as necessary. After repairs, go to step  8. If circuit is okay, go to next step.
  3. Remove EBCM from BPMV. See ELECTRONIC BRAKE CONTROL MODULE & BRAKE PRESSURE MODULATOR VALVE ASSEMBLY . Check resistance from both pump motor control circuits of BPMV to housing of BPMV. If resistance is less than 5 ohms, go to next step. If resistance is not less than 5 ohms, go to step  5.
  4. Check BPMV harness connector for poor connections. Repair as necessary. After repairs, go to step  8. If connections are okay, go to step  6.
  5. Check EBCM harness connector for poor connections. Repair as necessary. After repairs, go to step  8. If connections are okay, go step  7.
  6. Replace BPMV. After replacing BPMV, go to step  8.
  7. Replace EBCM. After replacing EBCM, go to next step.
  8. Using scan tool, clear DTCs. Turn ignition on and recheck for DTCs. If DTC resets, go to step  2. If DTC does not reset, system is okay.
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