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Home >> Lincoln >> 2018 >> MKZ Select, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1602 (Wipers And Washers (Except Electric)) >> Diagnosis And Testing >> Wipers and Washers >> Pinpoint Tests >> Pinpoint Test B : The Windshield Wipers Operate In Low Speed For All Wiper/Washer Switch Positions Except Off >> Notes

Pinpoint Test B : The Windshield Wipers Operate In Low Speed For All Wiper/Washer Switch Positions Except Off: Notes

WARNING: This page is about a different car, the 2018 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.

Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .

Refer to Wipers and Washers for schematic and connector information.

Normal Operation and Fault Conditions 

REFER to: Wipers and Washers - System Operation and Component Description  .

BCM DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
B1087:86 LIN Bus "A": Signal Invalid Sets when the BCM receives invalid data from the headlamp switch and SASM over the LIN.
B1087:88 LIN Bus "A": Bus Off Sets when the BCM receives no data from the headlamp switch and SASM over the LIN.
B112B:87 Steering Wheel Module: Missing Message Sets when the BCM loses communication with the SASM over the LIN.

Possible Causes 

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