- Rain sensor
- Wire harness
| Last Modified: 7-3-2017 | 6.8:8.0.40 | Doc ID: RM0000017WY005X |
| Model Year Start: 2007 | Model: LX470 | Prod Date Range: [08/2006 - ] |
| Title: MULTIPLEX COMMUNICATION: MULTIPLEX COMMUNICATION SYSTEM: B1279; Rain Sensor Communication Stop; 2007 MY LX470 [08/2006 - ] | ||
|
DTC |
B1279 |
Rain Sensor Communication Stop |
DESCRIPTION
- This DTC is output when communication stops between the rain sensor and multiplex network body ECU (main).
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B1279 |
No signal from rain sensor ECU for more than 10 seconds. |
|
WIRING DIAGRAM
-
Refer to DTC B1214 and 1215
![2007 MY LX470 [08/2006 - ]; MULTIPLEX COMMUNICATION: MULTIPLEX COMMUNICATION SYSTEM: B1214,B1215; Short to B+ in Door System Communication Bus Malfunction+](../../../../stylegraphics/info.gif "2007 MY LX470 [08/2006 - ]; MULTIPLEX COMMUNICATION: MULTIPLEX COMMUNICATION SYSTEM: B1214,B1215; Short to B+ in Door System Communication Bus Malfunction+")
.
INSPECTION PROCEDURE
PROCEDURE
|
1. |
CHECK RAIN SENSOR |
(a) Check that the auto wiper system operates normally.
HINT:
In this inspection, whether or not the rain sensor CPU functions normally can be diagnosed.
| NG |
|
|
|
2. |
CHECK WIRE HARNESS (RAIN SENSOR - WINDSHIELD WIPER ECU) |
(a) Disconnect the ECU connectors mentioned in the table below.
(b) Check the continuity of the wire harness between the connectors.
|
Wire harness side connector of ECU |
Terminal |
|---|---|
|
Rain sensor - Windshield wiper ECU |
R40-3 (MPX) - A51-1 (MPX1) |
OK:
There is continuity between the connectors.
HINT:
If there is an open in any wire harness, repair it.
| NG |
|
| OK |
|
|
|