Tire Pressure Warning Reset Switch Circuit

TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: Tire Pressure Warning Reset Switch Circuit

Tire Pressure Warning Reset Switch Circuit

DESCRIPTION

Receiving a signal from the tire pressure warning reset switch, the tire pressure warning ECU indicates the initialization of the pressure warning system.

WIRING DIAGRAM





INSPECTION PROCEDURE
NOTICE:
It is necessary to register an ID code after replacing a tire pressure warning valve and transmitter and/or the tire pressure warning ECU Registration.

PROCEDURE

1. CHECK TIRE PRESSURE WARNING RESET SWITCH FUNCTION
(a) Perform the tire pressure warning reset switch test in the test mode Test Mode Procedure.
OK:
Reset switch ON
Tire pressure warning light comes on.
Reset switch OFF
Tire pressure warning light blinks.
NG -- INSPECT TIRE PRESSURE WARNING RESET SWITCH
OK -- END
2. INSPECT TIRE PRESSURE WARNING RESET SWITCH




(a) Disconnect the tire pressure warning reset switch connector.
(b) Measure the resistance between terminals 1 and 2 of the tire pressure warning reset switch when the tire pressure warning switch is ON and OFF.
OK:






NG -- REPLACE TIRE PRESSURE WARNING RESET SWITCH
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (TIRE PRESSURE WARNING RESET SWITCH-TIRE PRESSURE WARNING ECU)




(a) Disconnect the tire pressure warning ECU T23 connector.
(b) Measure the resistance according to the value(s) in the table below.
OK:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE TIRE PRESSURE WARNING ECU