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 TIPM

Diagnostic Test

1. INCORRECT VALUE PROGRAMMED INTO TIPM

TIRE SIZE	BODY STYLE	ENGINE SIZE	SALES CODE	TIRE DIAMETER
P225/75R 17 BSW ALL TERRAIN	JK	ALL	TNA	2480
P225/70R 18 BSW ON/OFF ROAD	JK	ALL	TNB, TT6	2480
P225/75R 16 BSW ON/OFF ROAD	JK	ALL	TRM	2253
LT225/75R 17 BSW OFF ROAD	JK	ALL	TT7	2495
P225/75R 17 OWL ON/OFF ROAD	JK	ALL	TUF	2480
P245/75R 16 BSW ON/OFF ROAD	JK	ALL	TYX, TYZ	2357

Verify the correct Tire/wheel information is programmed in the TIPM.

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

Yes

Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).

No

Program the correct Tire/Wheel information in the TIPM.
Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).