Test Description

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

2: This step tests for a short to ground between the CAN HI and CAN LO circuits.
3: This step tests the CAN HI and CAN LO circuits for a short together.
4: This step checks to see if the DTC will reset as current.

DTC C0236

Step	Action	Yes	No
Schematic Reference: ABS Schematics Connector End View Reference: ABS Connector End Views
1	Did you perform the Diagnostic System Check - Engine Controls?	Go to Step 2	Go to Diagnostic System Check - ABS
2	Turn OFF the ignition. Disconnect the electronic brake control module (EBCM). Disconnect the engine control module (ECM) connector. Using the digital multimeter (DMM), test the controller area network (CAN) HI and controller area network (CAN) LO circuits for a short to ground between the ECM and the EBCM. Refer to LINK in Wiring Systems. Did you find and correct the condition?	Go to Step 6	Go to Step 3
3	Using the DMM, test the CAN HI and CAN LO circuits between the ECM and the EBCM for being shorted together or shorted to voltage. Refer to LINK in Wiring Systems. Did you find and correct the condition?	Go to Step 6	Go to Step 4
4	Use the scan tool in order to clear the DTCs. Test drive the vehicle. Refer to LINK. Did DTC C0236 reset?	Go to Step 5	Go to Step 6
5	Replace the EBCM. Refer to Electronic Brake Control Module Replacement . Did you complete the replacement?	Go to Step 6	-
6	Use the scan tool in order to clear the DTCs. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset?	Go to Step 2	System OK