DTC C0245. GMC Truck Yukon XL Denali 2008

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2008 🢒 Yukon XL Denali 🢒 Driver Information and Entertainment 🢒 Cellular, Entertainment, and Navigation 🢒 DTC C0245

Diagnostic Instructions

•	Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

•	Review Strategy Based Diagnosis for an overview of the diagnostic approach.

•	Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptor

DTC C0245: Wheel Speed Sensor Frequency Error

Diagnostic Fault Information

Circuit	Short to Ground	Open/High Resistance	Short to Voltage	Signal Performance
Wheel Speed Sensor Frequency Error	--	--	--	C0245

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 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

Electrical Information Reference

•	Circuit Testing

•	Connector Repairs

•	Testing for Intermittent Conditions and Poor Connections

•	Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

Inspect for one tire that has improper air pressure or improper size.