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Last Modified: 4-30-2014 |
6.6 C |
Doc ID: RM0000018LF001X |
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Model Year: 2006 |
Model: LX470 |
Prod Date Range: [05/2005 -
] |
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Title: TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: C2192/92; Select Switch Error (Test Mode DTC); 2006 MY LX470 [05/2005 - ] |
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DTC
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C2192/92
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Select Switch Error (Test Mode DTC)
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DESCRIPTION
The tire pressure warning select switch has 2 positions: "MAIN" and "2nd". 2 kinds of ID (2 types of tires) for the tire pressure monitor valve sub-assembly can be registered to the tire pressure monitor ECU.
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DTC No.
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DTC Detecting Condition
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Trouble Area
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C2192/92
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In test mode, switch position is not detected in the following order:
"MAIN", "2nd", "MAIN"
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Tire pressure warning select switch
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Tire pressure monitor ECU
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Wire harness
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WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
Start the inspection from step *1 when using the intelligent tester, and from step *2 when not using the intelligent tester.
PROCEDURE
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1.
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READ VALUE USING INTELLIGENT TESTER*1
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(a) Connect the intelligent tester (with CAN VIM) to the DLC3.
(b) Turn the ignition switch ON.
(c) Select the item below in the DATA LIST, and read its value displayed on the intelligent tester.
Tire pressure monitor ECU
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Item
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Measurement item / Range (Display)
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Normal Condition
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Diagnostic Note
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SELECT SW
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Select Switch Status
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MAIN: Not pressing
2nd: Pressing
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-
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(d) Check that the value displayed on the intelligent tester changes when pressing the tire pressure warning select switch.
OK:
Tire pressure warning select switch value changes.
| OK |
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REPLACE TIRE PRESSURE MONITOR ECU
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| NG |
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2.
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INSPECT TIRE PRESSURE WARNING SELECT SWITCH*2
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(a) Remove the select switch.
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(b) Measure the resistance of the switch.
Standard resistance:
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Switch Position
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Tester Connection
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Specified Condition
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MAIN
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2 - 1
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10 kΩ or higher
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2nd
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2 - 1
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Below 1 Ω
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| NG |
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REPLACE TIRE PRESSURE WARNING SELECT SWITCH
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| OK |
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3.
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CHECK WIRE HARNESS AND CONNECTOR (SELECT SWITCH - ECU)
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(a) Disconnect the T35 ECU connector.
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(b) Disconnect the T38 switch connector.
(c) Measure the resistance of the wire harness side connectors.
Standard resistance:
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Tester Connection
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Specified Condition
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T38-2 - T35-7 (IDSW)
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Below 1 Ω
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T38-1 - Body ground
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Below 1 Ω
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T35-7 (IDSW) - Body ground
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10 kΩ or higher
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| NG |
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REPAIR OR REPLACE HARNESS AND CONNECTOR
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| OK |
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REPLACE TIRE PRESSURE MONITOR ECU
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