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ABS Diagnostics for C0245: The copy/paste is a little messy...
DTC C0245 00
Wheel Speed Sensor Frequency Error
Diagnostic Fault Information
Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
DTC C0245 (Equal to or Under 8600 GVW)
Circuit/System Description
The wheel speed sensor receives a 12-volt power supply voltage from the electronic brake control module
(EBCM) and provides an output signal to the EBCM. As the wheel spins, the wheel speed sensor sends the
EBCM a DC square wave signal. The EBCM uses the frequency of the square wave signal to calculate the
wheel speed.
Conditions for Running the DTC
The ignition is ON.
Ignition voltage is greater than 9.5 volts.
No wheel speed sensor faults exist.
Brake is not applied.
Vehicle is not cornering.
No wheel spinning is detected.
Conditions for Setting the DTC
Wheel speed differences between one wheel and the others is greater than 25 percent.
Action Taken When the DTC Sets
Antilock Brake System (ABS), Traction Control System (TCS) and Vehicle Stability Enhancement
Circuit Short to Ground
Open/High Resistance
Short to Voltage Signal
Performance
Wheel Speed Sensor Frequency Error - - - C0245 00
2007 BRAKES Antilock Brake System - Avalanche, Escalade, Suburban, Tahoe & Yukon
System (VSES) are disabled for the remainder of the ignition cycle.
The ABS and Stabilitrak indicator turns ON.
The service Traction Control and Stabilitrak displays on the DIC.
Conditions for Clearing the DTC
The DTC becomes history when the conditions for setting the DTC are no longer present.
The history DTC clears after 100 malfunction-free ignition cycles.
The EBCM receives a clear code command from the scan tool.
Diagnostic Aids
Faulty wheel speed sensor will not set this DTC.
A vehicle using a space saver spare will not set this code.
Reference Information
Schematic Reference
Antilock Brake System Schematics
Connector End View Reference
Antilock Brake System Connector End Views
Description and Operation
ABS Description and Operation (8600 GVW or Less) or ABS Description and Operation (Over 8600
GVW)
Electrical Information Reference
Circuit Testing
Connector Repairs
Testing for Intermittent Conditions and Poor Connections
Wiring Repairs
Scan Tool Reference
Scan Tool Data List for EBCM
Circuit/System Verification
Inspect for one tire that has improper air pressure or improper size.
Repair Procedures
2007 Cadillac Escalade
2007 BRAKES Antilock Brake System - Avalanche, Escalade, Suburban, Tahoe & Yukon
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.