C1078-TIRE REVOLUTIONS RANGE PERFORMANCE
For a complete wiring diagram Refer to Section 8W.
- 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.
| Possible Causes |
| INCORRECT VALUE PROGRAMMED INTO FCM |
Diagnostic Test
1. INCORRECT VALUE PROGRAMMED INTO FCM| TIRE SIZE | BODY STYLE | ENGINE SIZE | SALES CODE | TIRE DIAMETER |
| P245/65R 17 BSW ALL TERRAIN | WK, XH | ALL | TCF, | 2271 |
| P245/65R 17 OWL ALL TERRAIN | WK, XK | ALL | TCG | 2277 |
| P245/60R 18 BSW AS PERFORMANCE | WK, XK | ALL | TUU | 2278 |
| 255/45R 20 285/40ZR 20 ASP | WK | ALL | TVG | 2258 |
| 245/45ZR 20 BSW PERFORMANCE | WK | ALL | TVH | 2243 |
| P245/60R 18 BSW ALL TERRAIN | XK | ALL | TUN | 2278 |
| LT245/65R 17 WRANGLER HP | WK | ALL | TYC, | 2356 |
| P245/65R 17 BSW ALL SEASON | WH, XH | ALL | TVX | 2265 |
| P245/65R 17BSW ALL SEASON | WK | ALL | TY6 | 2356 |
| P245/65R 17 BSW ALL TERRAIN | WK | ALL | TCH | 2277 |
Verify the correct Tire/wheel information is programmed in the FCM.
Is the correct value programmed in the FCM according to the chart?
Yes
- Test complete.
- Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
No
- Program the correct Tire/Wheel information in the FCM.
- Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).