Diagnosis System

TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: DIAGNOSIS SYSTEM

1. DIAGNOSIS SYSTEM

(a) Warning light





(1) When there is a problem with the tire pressure warning system, the tire pressure warning light blinks at 0.5 second intervals, and turns on after 1 minute.

NOTICE:
When the malfunction has been corrected, the tire pressure warning light does not come on or blink.

(b) DTCs (Normal mode)

(1) DTCs are memorized in the tire pressure warning ECU and receiver and can be read by using the Techstream Reading and Clearing Diagnostic Trouble Codes.

(c) Test mode

(1) By switching from normal mode to test mode (input signal check), the tire pressure warning ECU and receiver, each tire pressure warning valve and transmitter and each vehicle speed sensor can be checked Test Mode Procedure.

2. CHECK WARNING LIGHT

(a) Turn the ignition switch ON.





(b) Check that the tire pressure warning light comes on for 3 seconds.

If the warning light does not illuminate for 3 seconds, proceed to the troubleshooting for the tire pressure warning light circuit.





3. TIRE PRESSURE WARNING LIGHT AND INDICATOR CHART

HINT
The table below indicates the state of the tire pressure warning light after the ignition switch is turned ON.





HINT
*1: Turns on and turns off repeatedly at 0.5 second intervals, and turns on after 1 minute.





* *2: Turns on and turns off repeatedly at 0.125 second intervals.





* *3: Blinks 3 times (1 second on, 1 second off).





* *4: Turns on and goes off repeatedly at 0.25 second intervals.





* *5: When there is an open circuit, light is off for 10 seconds. Then it blinks at 0.5 second intervals, and turns on after 1 minute.