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Diagnostic Test

ANTI-LOCK BRAKE SYSTEM (ABS) MODULE DTCS PRESENT
NOTE:
Make sure all tire/wheel sizes match and are at the correct tire pressure before continuing with this test.
1. Ignition on, engine not running.
2. With the scan tool, read DTCs in the ABS Module.
  Are there any ABS DTCs present?
  
  Yes
  - Refer to DIAGNOSIS AND TESTING and perform the appropriate diagnostic procedure.
  No
  - Go To 2.
VERIFY THE DTC IS ACTIVE
NOTE:
This DTC must be active for the results of this test to be valid.
1. Ignition on, engine not running.
2. With the scan tool, read and record DTCs.
3. With the scan tool, erase DTCs.
4. Cycle the ignition switch from off to on.
5. With the scan tool, read and record DTCs.
  Is the DTC active at this time?
  
  Yes
  - Go To 3.
  No
  - Go To 4.

INCORRECT VALUE PROGRAMMED INTO BCM

TIRE SIZE	BODY STYLE	ENGINE SIZE	SALES CODE	TIRE CIRCUMFERENCE (MM PER REV)
P225/70R 16 ALL SEASON	JC	ALL	TRD	2206
225/65R 17 BSW TOURING	JC	ALL	TRF	2220
225/65R 16 BSW THREE SEASON	JC	ALL	TUJ	2130
P225/65R 17 BSW A/S TOURING	JC	ALL	TVK	2230
225/55R 19 BSW THREE SEASON	JC	ALL	TWC	2250
P225//55R 19 BSW AS TOURING	JC	ALL	TWV	2270

Verify the correct tire/wheel information is programmed in the BCM.
Is the correct value programmed in the BCM according to the chart?

Yes
- Test complete.
- Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
No
- Program the correct Tire/Wheel information in the BCM.
- Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .

INTERMITTENT WIRING AND CONNECTORS
1. The conditions necessary to set this DTC are not present at this time.
2. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.
3. Wiggle test the wiring harness and connectors while checking for shorted and open circuits.
4. Using the scan tool, monitor the data related to this circuit while performing the wiggle test. Look for the data to change or for the DTC to reset.
  Were there any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Test Complete.