Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - NETWORKING
CHECK HARNESS AND CONNECTOR (RAIN SENSOR - WIND SHIELD WIPER ECU AND OVERHEAD JUNCTION BLOCK)
LIN COMMUNICATION SYSTEM - Rain Sensor LIN Communication Malfunction
DESCRIPTION
The LIN communication of the components related to the rain sensor occurs between the rain sensor and windshield wiper ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
- NOTICE:
- When using the intelligent tester with the ignition switch off to troubleshoot:
- Connect the intelligent tester to the vehicle, and turn a courtesy switch on and off at 1.5 second intervals until communication between the intelligent tester and vehicle begins.
| 1.CHECK HARNESS AND CONNECTOR (RAIN SENSOR - WIND SHIELD WIPER ECU AND OVERHEAD JUNCTION BLOCK) |
Disconnect the E85 ECU connector.
Disconnect the R11 sensor connector.
Disconnect the R7 junction block.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition R11-3 (MPX) - E85-7 (MPX1) Always Below 1 Ω R11-4 (SIG) - R7-29 (IG2) Always Below 1 Ω R11-1 (ES) - R7-4 (GND2) Always Below 1 Ω R11-3 (MPX) - Body ground Always 10 kΩ or higher R11-4 (SIG) - Body ground Always 10 kΩ or higher R11-1 (ES) - Body ground Always 10 kΩ or higher
Reconnect the R7 junction block connector.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Switch Condition Specified Condition R11-4 (SIG) - Body ground Ignition switch ON 11 to 14 V
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| OK | |
| 2.REPLACE RAIN SENSOR |
Temporarily replace the rain sensor with a new one ().
Check the rain sensor function is normal.
- OK:
- Rain sensor function is normal
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| OK | ||
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