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Home >> Chevrolet >> 2001 >> Tracker 2D Utility, 4WD, Standard >> Repair and Diagnosis (Single Page) >> Brakes >> Traction Control >> Anti-Lock Brake System - 4WAL >> Diagnostic Tests >> DTC C1217 & C1218: Pump Motor Shorted To Ground Or Motor Ground Open >> Diagnosis

DTC C1217 & C1218: Pump Motor Shorted To Ground Or Motor Ground Open: Diagnosis

  1. Perform DIAGNOSTIC SYSTEM CHECK  . Go to next step.
  2. Turn ignition off. Disconnect EBCM connector and install Universal Pinout Box (J-39700) and Adapter (J-39700-99) to EBCM connector. Use pinout box to test both ground circuits for opens or high resistance. If ground circuits are okay, go to step  5 . If grounds have opens or high resistance, go to next step.
  3. Separate EBCM from BPMV. Using DVOM, measure resistance from both motor circuits to BPMV case. Resistance should be more than 5 ohms. If resistance is not as specified, go to next step. If resistance is as specified, replace EBCM. See BRAKE PRESSURE MODULATOR VALVE & ELECTRONIC BRAKE CONTROL MODULE  under REMOVAL & INSTALLATION.
  4. Using fused jumper wire (40-amp), jumper one side of motor circuit to battery voltage. Using another fused jumper wire (40-amp), jumper other side of motor circuit to ground. See WIRING DIAGRAMS  . If motor activates, go to next step. If motor does not activate, replace BPMV. See BRAKE PRESSURE MODULATOR VALVE & ELECTRONIC BRAKE CONTROL MODULE  under REMOVAL & INSTALLATION.
  5. Reconnect EBCM and BPMV. Reconnect EBCM connector. Use scan tool to clear DTC. Drive vehicle at a speed greater than 5 MPH. If DTC resets, go to step  2 . If DTC does not reset, system is okay.
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