Edge AWD V6-3.5L (2009)
-
For the LH trailer stop/turn lamp, while applying the brake pedal, measure the voltage between the trailer tow C439-2, circuit CAT06 (YE),
harness side and ground.
-
For the RH trailer stop/turn lamp, while applying the brake pedal, measure the voltage between the trailer tow C439-1, circuit CAT09 (GN),
harness 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
VERIFY the BJB fuse 24 (15A) (LH stop/turn relay) or fuse 46 (15A) (RH stop/turn relay) is OK. If OK, GO to Z2. If not OK, REFER to Wiring
Diagrams to identify the possible causes of the circuit short.
-------------------------------------------------
Z2 CHECK THE TRAILER TOW STOP/TURN RELAY
-
Disconnect: Suspect Trailer Tow Stop/Turn Relay.
-
Substitute a known good relay.
-
For the LH trailer stop/turn lamp, while applying the brake pedal, measure the voltage between the trailer tow C439-2, circuit CAT06 (YE),
harness side and ground.
-
For the RH trailer stop/turn lamp, while applying the brake pedal, measure the voltage between the trailer tow C439-1, circuit CAT09 (GN),
harness side and ground.
-
Is the voltage greater than 10 volts?
Yes
REMOVE the known good relay. INSTALL a new trailer tow stop/turn relay. TEST the system for normal operation.
No
REMOVE the known good relay. GO to Z3.
-------------------------------------------------
Z3 CHECK FOR VOLTAGE TO THE STOP/TURN LAMP RELAY COIL
-
While applying the brake pedal, measure the voltage between the trailer tow LH stop/turn relay pin 1, circuit CLS18 (GY/BN), BJB face side and