Grand Cherokee 2WD V8-4.7L VIN J (2004)
Circuit Breaker: All Technical Service Bulletins
Electrical - No Auxiliary Power to Trailer Tow Harness
NUMBER: 08-030-03
GROUP: Electrical
DATE: October 24, 2003
THIS BULLETIN IS BEING PROVIDED IN ADVANCE. DO NOT ORDER PARTS OR PERFORM ANY ACTIONS RELATED TO THIS
BULLETIN UNTIL OCTOBER 24, 2003.
SUBJECT:
No Auxiliary Power To Trailer Due To Missing Trailer Tow Harness Circuit Breaker
OVERVIEW:
This bulletin involves installing a missing circuit breaker into the trailer tow harness.
MODELS:
2004
(WJ)
Grand Cherokee (Domestic Market)
NOTE:
This bulletin applies to vehicles built between August 04, 2003 (MDH 0804XX) and September 22, 2003 (MDH 0922XX) and equipped with a
trailer tow package (sales code AHT or AHX).
SYMPTOM/CONDITION:
Pin # 4 in the trailer tow harness connector is used to supply auxiliary power for various trailer needs. The auxiliary power, supplied from the cigar
lighter relay, may not be available to pin # 4 because an 18 amp circuit breaker was omitted during vehicle assembly. The connector used to hold the 18
amp circuit breaker is located behind the left (driver) side rear quarter trim panel.
DIAGNOSIS:
1.
With the engine off turn the ignition switch to the ON position.
2.
At the rear of the vehicle, verify if 12 volts is present at trailer tow connector pin # 4.
3.
Turn the ignition switch to the OFF position.
4.
If 12 volts was not present at trailer tow connect pin # 4, and the build date of vehicle build falls between the above build dates, perform the
Repair Procedure.
PARTS REQUIRED:
SPECIAL TOOLS/EQUIPMENT REQUIRED:
REPAIR PROCEDURE:
1.
Fold down the left side seat back of the second row seat.
2.
If equipped, remove the rear cargo shade from the vehicle.
3.
Remove the left side front cargo hold-down loop and attaching screw.
4.
From the liftgate opening, remove the left side attaching screw from the liftgate opening scuff plate.
