LEMON Manuals: Even more car manuals for everyone
Home >> Oldsmobile >> 1999 >> Intrigue GL, 3.5 H >> Repair and Diagnosis >> External Pages >> Different car >> Section 4 (Anti-Lock Brake System - TCS-ETS - DELPHI DBC 7) >> Diagnostic Tests >> DTC C1224: Right Rear Wheel Speed Sensor Input Signal Equals Zero Or DTC C1228: Right Rear Excessive Wheel Speed Variation >> Testing Procedure

Testing Procedure

WARNING: This page is about a different car, the 1999 Buick Regal and 1999 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform DIAGNOSTIC SYSTEM CHECK  . After performing diagnostic system check, go to next step.
  2. If DTC C1235, C1291 or C1293 set as a current or history code, go to specific trouble code. If DTC C1235, C1291 or C1293 do not set, go to next step.
  3. Check left front wheel speed sensor and connector for damage. If sensor or connector is okay, go to step  5 . If sensor or connector is faulty or damaged, go to next step.
  4. Replace left front wheel speed sensor. After repairs, go to step  11 .
  5. Check left front wheel speed sensor harness for damage. If harness is okay, go to step  7 . If harness is faulty or damaged, go to next step.
  6. Replace wheel speed sensor harness. After repairs, go to step  11 .
  7. Disconnect left front wheel speed sensor connector directly at sensor. Using DVOM, measure resistance between terminals of wheel speed sensor. If resistance is 850-1350 ohms, go to next step. If resistance is not 850-1350 ohms, go to step  4 .
  8. With DVOM still connected, select millivolt AC scale. Spin wheel approximately one revolution per second while monitoring AC output. If voltage is greater than 100 millivolts, go to next step. If voltage is less than 100 millivolts, go to step  4 .
  9. Disconnect EBCM/EBTCM connector. Connect pinout box and adapter cable to harness connector only. Using DVOM, measure continuity between pinout box terminals A5 and A6. If there is continuity, go to next step. If there is not continuity, go to step  11 .
  10. Repair short between circuit No. 882 and circuit 883. After repairs, go to step  11 .
  11. Reconnect all connectors and clear all DTCs. Drive vehicle faster than 15 MPH for at least 30 seconds while monitoring scan tool for ABS/TCS-ETS DTCs. If any current DTCs are set, go to step  12 . If no current DTCs are set, see INTERMITTENTS & POOR CONNECTIONS  under DIAGNOSIS & TESTING.
  12. Replace EBCM/EBTCM.
scientia non olet · About LEMON Manuals