DTC C1210, C1224, C1228, or C1235. Holden WM Sedan 2009

For 1990-2009 cars only

Makes 🢒 Holden 🢒 2009 🢒 WM Sedan 🢒 Engine 🢒 Engine Controls and Fuel - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L 🢒 DTC C1210, C1224, C1228, or C1235

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 C1210: Right Rear Wheel Speed Sensor Circuit High

DTC C1224: Right Rear Wheel Speed Sensor Circuit

DTC C1228: Right Rear Wheel Speed Sensor Circuit Range/Performance

DTC C1235: Right Rear Wheel Speed Sensor Circuit Low

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. If the EBCM identifies an error, it sets a code and communicates via GMLAN to the engine control module (ECM).

Conditions for Running the DTC

Ignition voltage is between 9 and 16 volts.

Conditions for Setting the DTC

•	The engine must be ON.

•	The vehicle speed is greater than 16 km/h (10 mph).

Schematic Reference

•	Engine Controls Schematics.

•	Antilock Brake System Schematics.

Connector End View Reference

Component Connector End Views

Electrical Information Reference

•	Circuit Testing.

•	Testing for Intermittent Conditions and Poor Connections.

•	Wiring Repairs.

Scan Tool Reference

Control Module References

Circuit/System Verification

The ECM sets DTCs C1210, C1224, C1228 and C1235 in conjunction with the EBCM, any EBCM wheel speed sensor DTC should be diagnosed ahead of performing the test below.

Circuit/System Testing

Verify that no other DTCs are set.

⇒	If any other DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle.

Ignition ON, using a scan tool view the current DTC's.

⇒	If any of the following DTCs C1210, C1224, C1228 or C1235, are set to current replace ECM.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Engine Control Module Replacement for engine control module replacement, setup and programming.