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Home >> Cadillac >> 1997 >> Eldorado Base >> Repair and Diagnosis >> Suspension >> Electronic Suspension >> Suspension - Electronic CV Road Sensing >> Testing & Diagnosis >> Code C1760, DTC C1761, DTC C1762 & DTC C1763: Position Sensor Input Fault

Code C1760, DTC C1761, DTC C1762 & DTC C1763: Position Sensor Input Fault

  1. Perform CVRSS system check. See CVRSS SYSTEM CHECK  . After performing CVRSS system check, go to next step.
  2. If Code C1768 is set, go to applicable code for diagnosis. See CODE DESCRIPTION  table under SELF-DIAGNOSTICS. If Code C1768 is not set, go to next step.
  3. Check for mechanical problems at position sensor (i.e. disconnected sensor link). Repair as necessary. After repairs, perform CVRSS SYSTEM CHECK  . If no mechanical problems are present, go to next step.
  4. Using DVOM, backprobe measuring voltage between position sensor input circuit (Tan/White wire on front; Light Green wire on rear) and sensor ground circuit (Black wire) of CVRSS control module connector C2. See WIRING DIAGRAMS  . If voltage is less than .5 volt, go to next step. If voltage is more than .5 volt, go to step 7).
  5. Turn ignition off. Disconnect 24-pin CVRSS control module connector C2. Check CVRSS control module connector C2 for proper seating of circuits and for debris or corrosion. Disconnect position sensor connector. Check position sensor connector for proper seating of circuits and for debris or corrosion. Check for open in sensor 8-volt reference circuit (Light Green/Black wire) and in position sensor input circuit (Tan/White wire on front; Light Green wire on rear). Repair as necessary. After repairs, perform CVRSS SYSTEM CHECK  . If circuits and connections are okay, go to next step.
  6. Check continuity between position sensor input circuit (Tan/White wire on front; Light Green wire on rear) and sensor ground circuit (Black wire). See WIRING DIAGRAMS  . Also, check continuity between position sensor input circuit (Tan/White wire on front; Light Green wire on rear) and ground. Repair as necessary. After repairs, perform CVRSS SYSTEM CHECK  . If circuits are okay, go to step 12).
  7. If voltage is more than 4.5 volts, go to next step. If voltage is less than 4.5 volts, go to step 14).
  8. If voltage is more than 10 volts, go to step 13). If voltage is less than 10 volts, go to next step.
  9. Turn ignition off. Disconnect 24-pin CVRSS control module connector C2. Disconnect position sensor connector. Check continuity between sensor 8-volt reference circuit (Light Green/Black wire) and position sensor input circuit (Tan/White wire on front; Light Green wire on rear). See WIRING DIAGRAMS  . Repair as necessary. After repairs, perform CVRSS SYSTEM CHECK  . If circuit is okay, go to next step.
  10. Check for open in sensor ground circuit (Black wire). Repair as necessary. After repairs, perform CVRSS SYSTEM CHECK  . If circuit is okay, go to next step.
  11. Reconnect CVRSS control module connector. Backprobe checking continuity between sensor ground circuit (Black wire) of CVRSS control module connector C2 and ground. See WIRING DIAGRAMS  . If continuity exists, go to next step. If continuity does not exist, go to step 14).
  12. Replace position sensor. After repairs, perform CVRSS SYSTEM CHECK  .
  13. Repair short to voltage in position sensor input circuit (Tan/White wire on front; Light Green wire on rear). After repairs, perform CVRSS SYSTEM CHECK  .
  14. Turn ignition off. Replace CVRSS control module. Reinstall/reconnect all components/connectors. Install scan tool. Turn ignition on, with engine off. Calibrate NEW CVRSS control module. See CALIBRATING CVRSS CONTROL MODULE  under ADJUSTMENTS. Perform CVRSS SYSTEM CHECK  .
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