Navigator 4WD V8-5.4L VIN 5 (2006)
![background image](/lincoln/navigator_4wd/v8-5.4l_vin_5/Page-3620012.png)
AB3-AB5
Normal Operation
Voltage for the trailer tow battery charge relay coil is supplied by the central junction box (CJB) fuse 13 (10A) when the ignition switch is in the RUN
position. Ground for the trailer tow battery charge relay coil is supplied through circuit 57 (BK). Voltage for the trailer tow battery charge relay supply
is supplied by the CJB fuse 106 (30A). When the trailer tow battery charge relay is energized, voltage is routed to the trailer through circuit 49 (OG).
Possible Causes
-
Fuse
-
Circuit 49 (OG) open
-
Circuit 57 (BK) open
-
Trailer tow battery charge relay
-
Trailer
-
CJB
Tests AC: The Trailer Electric Brakes Do Not Operate Correctly
PINPOINT TEST AC: THE TRAILER ELECTRIC BRAKES DO NOT OPERATE CORRECTLY