DTC B1040: Inspection
+B_WIPER, GND Circuit Inspection
Test Procedure
- Preparation
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Windshield wiper control unit/motor 6P connector: disconnected
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Body control module connector C (28P): disconnected
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- Procedure
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Perform the inspection according to the following table.
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| (Disconnected)Windshield wiper control unit/motor 6P connector female terminals | (Disconnected)Body control module connector C (28P) female terminals | ||||
| IG Mode |
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Normal Conditions | ||
| +B_WIPER circuit inspection | ON | 12 V battery voltage [circuit type 1] | |||
| GND open wire inspection | OFF | There is less than 1 Ohm | |||
| LIN(FR_WIPER) open wire inspection | OFF | There is less than 1 Ohm | |||
| NOTE: Refer to: Open/Shorted Wire Inspection Description for the method to inspect the shorted circuit below, then start to inspect according to circumstances. | |||||
| LIN(FR_WIPER) shorted to ground inspection | OFF | Not shorted | |||
Results
- If abnormal, there is a problem in the circuit.
NOTE: If the power supply inspection of the above table showed abnormally, do the additional Power Supply Inspection , to locate the failure.
- If normal, there is a problem with the body control module.