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Home >> Cadillac >> 2003 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 459 (Antilock Brake System, Traction Control System & Stability Control System) >> Diagnostic Information and Procedures >> DTC C0245 (W/JL4): Wheel Speed Sensor Frequency Error >> Diagnostic Aids
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Diagnostic Aids

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2004 GMC Yukon XL, 2004 GMC Yukon, 2004 Chevrolet Tahoe, 2004 Chevrolet Suburban, and 2004 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Operating the vehicle with a tire that has very low air pressure may set this DTC.

DTC C0245 (W/JL4)

Step Action Yes No
1 Did you perform the ABS Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - ABS (W/O JL4)  or Diagnostic System Check - ABS (W/JL4) 
2 Inspect all of the tires on the vehicle to ensure that all of the tires are of equal size.
Did you find and correct the condition?		 Go to Step 4  Go to Step 3 
3 Inspect the wheel speed sensors and tone rings for damage, incorrect application, or incorrect installation.
Did you find and correct the condition?		 Go to Step 4  Go to Diagnostic Aids
4
  1. Use a scan tool in order to clear the DTCs.
  2. Turn OFF the ignition for 5 seconds.
  3. Turn ON the ignition.
  4. Operate the vehicle for at least 3 minutes within the Conditions for Running the DTC as specified in the supporting text.
Does the DTC reset?		 Go to Step 2  System OK
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