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DTC C0245: Wheel Speed Sensor Frequency Error: Notes

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 1999 Pontiac Grand Prix, 1999 Pontiac Firebird, 1999 Oldsmobile Intrigue, 1999 Chevrolet Camaro, and 1998 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform diagnostic system check. See DIAGNOSTIC SYSTEM CHECK. After performing diagnostic system check, go to next step.
  2. If DTC C0036, C0041, C0046, C0051 or C0056 is set concurrently with DTC C0245, go to appropriate DTC first for diagnosis. If DTC C0036, C0041, C0046, C0051 or C0056 is not set concurrently with DTC C0245, go to next step.
  3. Check wheel speed sensors and sensor rings for damage. If sensors or rings are damaged, go to next step. If sensors and rings are okay, go to step 5)  .
  4. Replace wheel speed sensor or sensor ring. After repairs, go to step 14)  .
  5. Inspect jumper harness for physical damage. If harness is damaged, go to next step. If harness is not damaged, go to step 7)  .
  6. Replace jumper harness. After repairs, go to step 14)  .
  7. Check for proper routing of wheel speed sensor wiring harnesses. Ensure harnesses are routed away from spark plug wires. If harnesses are properly routed, go to step 9)  . If harnesses are not properly routed, go to next step.
  8. Reroute wheel speed sensor wiring harnesses away from spark plug wires. After repairs, go to step 14)  .
  9. Install scan tool. Turn ignition on. Set scan tool to snapshot auto trigger mode and monitor wheel speed sensors. Drive vehicle faster than 8 MPH for several minutes. If scan tool triggers on any wheel speed sensor, go to next step. If scan tool does not trigger on any wheel speed sensor, go to step 11)  .
  10. Note which wheel speed sensor triggered scan tool. Diagnose DTC for sensor that triggered scan tool.
  11. Reconnect all previously disconnected components. Using scan tool, clear DTCs. Remove scan tool. Drive vehicle faster than 8 MPH for several minutes. If DTC resets, go to step 13)  . If DTC does not reset, go to next step.
  12. Malfunction is intermittent. Inspect all connectors and wiring harnesses for damage resulting in an open or high resistance when connected.
  13. Replace EBTCM.
  14. Reconnect all previously disconnected components. Using scan tool, clear DTCs. Remove scan tool. Drive vehicle faster than 8 MPH for several minutes. If DTC resets, go to step 2)  . If DTC does not reset, see INTERMITTENTS & POOR CONNECTIONS under DIAGNOSIS & TESTING.
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