DTC B1008-62; Windshield Wiper Lo Switch Signal Mismatch: Notes
WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
DETECTION CONDITION & POSSIBLE CAUSE
| Description |
Windshield wiper LO switch signal mismatch |
| Detection condition |
- The condition in which the CAN and module signals are compared and no match is detected between the signals for 5 s or more with the ignition switched ON (engine off or on).
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| Fail-safe function |
- If the windshield wiper switch position which is monitored by the LO/HI detection function of the front body control module (FBCM) does not match the one which is sent from the start stop unit as a CAN signal, the windshield wipers are controlled according to the CAN signal for a certain period of time. After a certain period of time has elapsed, they are controlled as follows:
- When the front body control module (FBCM) detects LO/HI ON using the LO/HI detection function: The windshield wipers are operated at low speed.
- When the front body control module (FBCM) detects LO/HI OFF using the LO/HI detection function: The windshield wipers are stopped at the park position.
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| Possible cause |
- Start stop unit malfunction
- Windshield wiper switch malfunction
- Short to ground in wiring harness between start stop unit terminal 1V and front body control module (FBCM) terminal 2Y
- Short to power supply in wiring harness between start stop unit terminal 1V and front body control module (FBCM) terminal 2Y
- Open circuit in wiring harness between start stop unit terminal 1V and front body control module (FBCM) terminal 2Y
- Front body control module (FBCM) malfunction
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