C1078

C1078-TIRE REVOLUTIONS RANGE PERFORMANCE

For a complete wiring diagram, refer to the Wiring Information.

- When Monitored:
Continuously.

- Set Condition:
A comparison between the tire circumference value contained in the EEPROM and the tire circumference value received on the CAN bus. Programmed value for tire size is not within acceptable range.





VERIFY BCM IS PROGRAMMED WITH CORRECT TIRE/WHEEL INFORMATION





1. Inspect all four tires on the vehicle and note the size of each tire.

NOTE: A non-production size tire cannot be programmed into the BCM. The production Powertrain, with the production size tires, is the only emissions certified configuration that is available for reprogramming.

2. Verify the correct Tire/wheel information is programmed in the BCM.

Is the correct value programmed in the BCM according to the chart?

Yes

- Replace the Body Control Module (BCM). Body Control Module - Removal.
- Perform the DTCM VERIFICATION TEST. DTCM Verification Test.

No

- Program the correct Tire/Wheel information in the BCM.
- Perform the DTCM VERIFICATION TEST. DTCM Verification Test.