ford Workshop Repair Guides

Ford Workshop Service and Repair Manuals

Initial Inspection and Diagnostic Overview|Page 7054 > < Initial Inspection and Diagnostic Overview|Page 7052
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Yes

REPAIR circuit CAT06 (YE) for an open. TEST the system for normal operation.

No

REPAIR circuit GD123 (BK/GY) for an open. TEST the system for normal operation.

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Z8 CHECK FOR VOLTAGE THROUGH THE TRAILER TOW CONNECTOR (RH TRAILER STOP/TURN LAMP)

-

For the 4-pin connector, while applying the brake pedal, measure the voltage between the trailer tow C4098-1, circuit CAT09 (GN), harness side
and ground.

-

For the 7-pin connector, while applying the brake pedal, measure the voltage between the trailer tow connector pin 4, circuit CAT09 (GN),
component side and ground.

-

Is the voltage greater than 10 volts?

Yes

The vehicle is operating correctly. SEND the trailer to an authorized camper/trailer repair facility.

No

For the 4-pin connector, GO to Z10.

For the 7-pin connector, GO to Z9.

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Z9 CHECK FOR VOLTAGE TO THE TRAILER TOW CONNECTOR (RH STOP/TURN 7-PIN)

-

Disconnect: Trailer Tow C4099.

-

While applying the brake pedal, measure the voltage between the trailer tow C4099-4, circuit CAT09 (GN), harness side and ground.

-

Is the voltage greater than 10 volts?

Yes

INSTALL a new trailer tow connector. TEST the system for normal operation.

No

GO to Z10.

Initial Inspection and Diagnostic Overview|Page 7054 > < Initial Inspection and Diagnostic Overview|Page 7052