Flex FWD V6-3.5L (2010)
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the
connector.
NOTE: Before beginning diagnostics, visually inspect the trailer tow connector mounted on the bumper for signs of corrosion or damage. Repair or
install a new trailer tow connector as required.
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AD1 CHECK FOR VOLTAGE THROUGH THE TRAILER TOW CONNECTOR
-
Ignition ON.
-
Measure the voltage between the trailer tow connector battery charge voltage supply pin, circuit CAT14 (OG), component side and ground.
-
Is the voltage greater than 10 volts?
Yes
GO to AD8.
No
GO to AD2.
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AD2 CHECK FOR VOLTAGE AT THE TRAILER TOW CONNECTOR (INOPERATIVE)
-
Ignition OFF.
-
Disconnect: Trailer Tow C4099.
-
Ignition ON.
-
Measure the voltage between the trailer tow C4099-5, circuit CAT14 (OG), 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 AD3.
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AD3 CHECK THE TRAILER BATTERY CHARGE RELAY (INOPERATIVE)
-
Ignition OFF.
-
Disconnect: Trailer Battery Charge Relay.
-
Substitute a known good relay.
-
Ignition ON.
