| Last Modified: 4-30-2014 | 6.6 J | Doc ID: RM0000018LY001X |
| Model Year: 2006 | Model: LX470 | Prod Date Range: [05/2005 - ] |
| Title: TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: Tire Pressure Warning Reset Switch Circuit; 2006 MY LX470 [05/2005 - ] | ||
|
Tire Pressure Warning Reset Switch Circuit |
DESCRIPTION
Receiving the signal from the tire pressure warning reset switch, the tire pressure monitor ECU indicates the initialization of the tire pressure warning system.
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
It is necessary to register an ID code after replacing the tire pressure monitor valve sub-assembly and/or the tire pressure monitor ECU
![2006 MY LX470 [05/2005 - ]; TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: REGISTRATION](../../../../stylegraphics/info.gif "2006 MY LX470 [05/2005 - ]; TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: REGISTRATION")
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PROCEDURE
|
1. |
CHECK TIRE PRESSURE WARNING RESET SWITCH FUNCTION |
(a)
Perform the tire pressure reset switch test in TEST MODE PROCEDURE
.
OK:
Reset switch ON:
Tire pressure warning light comes on.
Reset switch OFF:
Tire pressure warning light blinks.
| OK |
|
|
|
2. |
INSPECT TIRE PRESSURE WARNING RESET SWITCH |
|
(a) Remove the reset switch. |
|
(b) Measure the resistance of the switch.
Standard resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
3 - 4 |
ON |
Below 1 Ω |
|
3 - 4 |
OFF |
10 kΩ or higher |
| NG |
|
|
|
3. |
CHECK WIRE HARNESS (RESET SWITCH - ECU) |
|
(a) Disconnect the T35 switch connector. |
|
(b) Disconnect the T37 ECU connector.
(c) Measure the resistance of the wire harness side connectors.
Standard resistance:
|
Tester Connection |
Specified Condition |
|---|---|
|
T37-3 - T35-8 (CALSW) |
Below 1 Ω |
|
T37-3 - Body ground |
10 kΩ or higher |
|
T37-4 - Body ground |
Below 1 Ω |
| NG |
|
| OK |
|
|
|