Mountaineer AWD V8-4.6L (2010)
-
Measure the voltage between the trailer battery charge relay pin 30, circuit SBB13 (GY/RD), BJB face side and ground.
-
Is the voltage greater than 10 volts?
Yes
REPAIR circuit CAT14 (OG) for an open. TEST the system for normal operation.
No
REPAIR circuit SBB13 (GY/RD) for an open. TEST the system for normal operation.
-------------------------------------------------
AC8 CHECK FOR VOLTAGE AT THE TRAILER TOW CONNECTOR (BATTERY CHARGE ALWAYS ON)
-
Ignition OFF.
-
Measure the voltage between the trailer tow connector pin 5, circuit CAT14 (OG), component side and ground.
-
Is any voltage present?
Yes
GO to AC9.
No
The vehicle is operating correctly. SEND the trailer to an authorized camper/trailer repair facility.
-------------------------------------------------
AC9 CHECK THE BATTERY CHARGE RELAY OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE
-
Disconnect: Trailer Battery Charge Relay.
-
Measure the voltage between the trailer tow connector pin 5, circuit CAT14 (OG), component side and ground.
