Tire Pressure Warning Reset Switch Circuit

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 and receiver indicates the initialization of the tire pressure warning system.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK TIRE PRESSURE WARNING RESET SWITCH FUNCTION
(a) Perform the tire pressure warning reset switch test in TEST MODE PROCEDURE (Test Mode Procedure).
OK:
Reset switch ON
Tire pressure warning light illuminates.
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 or OFF.
Standard resistance:





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





(a) Disconnect the tire pressure warning reset switch T11 connector and tire pressure warning ECU T10 connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:





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