Tire Pressure Warning Reset Switch Circuit (to 12/2010)

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

WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
* When replacing the tire pressure warning ECU, read the transmitter IDs stored in the old ECU using the Techstream and note them down before removal.
* It is necessary to perform the initialization Initialization (to 12/2010) after the registration Registration (to 12/2010) of the transmitter IDs into the tire pressure warning ECU if the ECU has been replaced.

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 (to 12/2010).

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 -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE Problem Symptoms Table (to 12/2010)

2. INSPECT TIRE PRESSURE WARNING RESET SWITCH

(a) Disconnect the tire pressure warning reset switch connector.





(b) Measure the resistance according to the value(s) in the table below.

Standard resistance:





NG -- REPLACE TIRE PRESSURE WARNING RESET SWITCH Removal
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (TIRE PRESSURE WARNING RESET SW - TIRE PRESSURE WARNING ECU)

(a) Disconnect the D55 switch connector and D54 ECU 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 Removal (to 12/2010)