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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 40 (Antilock Brake System With TCS) >> Diagnostic Information and Procedures >> DTC C0245 >> Test Description

Test Description

WARNING: This page is about a different car, the 2007 Hummer H2. 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.

  1. 2:  If DTC C0245 is a history code, this step checks if a specific Wheel Speed Circuit Malfunction DTC is set concurrently with DTC C0245.
  2. 7:  This step checks if the wheel speed sensor harness is routed in close proximity to the spark plug wires.
  3. 9:  In this step, if the scan tool can record any erroneous wheel speed sensor signals, diagnose that sensors first.
DTC C0245

Step Action Yes No
Schematic Reference: Antilock Brake System Schematics 
Connector End View Reference: Antilock Brake System Connector End Views 
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle
2  Is the following DTCs set concurrently with a history DTC C0245?
  • DTC C0036
  • DTC C0041
  • DTC C0046
  • DTC C0051
 Go to Diagnostic Trouble Code (DTC) List - Vehicle Go to Step 3 
3 Inspect the wheel speed sensor (WSS) for physical damage.
Is physical damage of the WSS evident?		 Go to Step 4  Go to Step 5 
4 Replace the WSS. Refer to Front Wheel Speed Sensor Replacement  or Rear Wheel Speed Sensor Replacement .
Is the replacement complete?		 Go to Step 14  -
5 Inspect the wiring harness for physical damage.
Is physical damage of the wiring harness evident?		 Go to Step 6  Go to Step 7 
6 Repair the wiring harness. Refer to Wiring Repairs and Connector Repairs .
Is the replacement complete?		 Go to Step 14  -
7  Check for proper routing of the wheel speed sensor harness. Check that the wheel speed sensor harness is routed away from the spark plug wires. Refer to Harness Routing Views .
Is the wheel speed sensor harness properly routed?		 Go to Step 9  Go to Step 8 
8 Reroute the wheel speed sensor harness away from the spark plug wires.
Is the reroute complete?		 Go to Step 14  -
9 
  1. Install a scan tool.
  2. Turn the ignition switch to the RUN position.
  3. Set the scan tool to Snap Shot Auto Trigger mode and monitor the wheel speed sensors.
  4. Carefully drive the vehicle above 12 km/h (8 mph) for several minutes.
Did the scan tool trigger on any of the wheel speed sensors?		 Go to Step 10  Go to Step 11 
10 Note which wheel speed sensor triggered the scan tool. Follow the appropriate Wheel Speed Sensor Malfunction DTC table for the wheel speed sensor that triggered. Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
Is the repair complete?		 Go to Step 14  -
11
  1. Reconnect all previously disconnected components.
  2. Using a scan tool clear the DTC.
  3. Remove the scan tool from the DLC.
  4. Carefully drive the vehicle above 12 km/h (8 mph) for several minutes.
Does the DTC reset as a current DTC?		 Go to Step 13  Go to Step 12 
12 Malfunction is intermittent. Inspect all connectors and harnesses for damage that may result in an open or high resistance when connected. Refer to Connector Repairs and Wiring Repairs .
Is the repair complete?		 Go to Step 14  -
13 Replace the electronic brake control module (EBCM). Refer to Control Module References for replacement, setup, and programming.
Is the replacement complete?		 Go to Step 14  -
14
  1. Use the scan tool in order to clear the DTCs.
  2. 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
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