Diagnosis System

TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: DIAGNOSIS SYSTEM

DIAGNOSIS SYSTEM

1. CHECK BATTERY VOLTAGE
Standard battery voltage:
11 to 14 V
If the voltage is below 11 V, recharge the battery before proceeding.
2. 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 seconds intervals, and turns on after 1 minute.

(b) DTCs (Normal mode)
(1) DTCs are memorized in the tire pressure warning ECU and read by the blinks of the tire pressure warning light or by using Techstream Reading and Clearing Diagnostic Trouble Codes.
(c) Test mode
(1) By switching from normal mode into test mode (input signal check), you can inspect the tire pressure warning antenna and receiver, each tire pressure warning valve and transmitter, and vehicle speed sensor Test Mode Procedure.
3. CHECK TIRE PRESSURE WARNING LIGHT






(a) Turn the ignition switch ON.

(b) Check that the tire pressure warning light turns on for 3 seconds.
If the warning check result is not normal, proceed to the troubleshooting for the tire pressure warning light circuit.






4. TIRE PRESSURE WARNING LIGHT CHART
HINT: The table below indicates the state of the tire pressure warning light after the ignition switch is turned ON.





- *1: Turns on and goes off repeatedly at 0.5 seconds intervals, and turns on after 1 minute.





- *2: Turns on and goes off repeatedly at 0.125 seconds intervals.





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





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





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