1

Install a scan tool.

Does the scan tool power up?

--

Go to Step 2

Go to Scan Tool Does Not Power Up in Data Link Communications

1. Turn ON the ignition, with the engine OFF.
2. Attempt to establish communications with the following control modules:

•	Electronic brake control module (EBCM)

•	Instrument cluster (IPC)

Does the scan tool communicate with the control modules listed above?

--

Go to Step 3

Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications

Select the DRP/ABS/TCS/TIM/VSES display DTC function on the scan tool.

Does the scan tool display any DRP/ABS/TCS/VSES DTCs?

--

Go to Diagnostic System Check - ABS in Antilock Brake System

Go to Step 4

Does the scan tool display DTC C1245?

--

Go to DTC C1245 Low Tire Pressure Detected

Go to Step 5

Select the instrument cluster (IPC) display DTC function on the scan tool.

Does the scan tool display DTC B2818?

--

Go to DTC B2818 Low Tire Pressure System Reset Circuit Low

Go to Symptoms