Grand Cherokee 2WD V8-4.7L VIN N (2000)
Seat Heater: All Technical Service Bulletins
Seat Heater - Inoperative
NUMBER: 08-004-01 REV. B
GROUP: Electrical
DATE: Dec. 20, 2001
THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 08-00-01 REV. A, DATED NOVEMBER 16, 2001, WHICH SHOULD BE
REMOVED FROM YOUR FILES. THE BULLETIN CORRECTS PARTS DESCRIPTION FOR THE HEATING ELEMENTS. THE CHANGES
HAVE BEEN HIGHLIGHTED WITH ASTERISKS.
SUBJECT:
Inoperative Heated Seat
OVERVIEW:
This bulletin involves installing a kit to repair an open circuit in the heated seat heating element circuit.
MODELS:
1999 - 2001
(WJ)
Grand Cherokee (US Built)
1999 - 2000
(WJ)
Grand Cherokee (International Markets)
2001
(WG)
Grand Cherokee (International Markets)
SYMPTOM/CONDITION:
Heated seat may be inoperative due to an open circuit in the seat cushion heating element.
DIAGNOSIS/REPAIR PROCEDURES:
Using a digital ohmmeter, check the resistance across the four way heated seat feed connector under the seat. The resistance between terminals "A" and
"B" should be 0.90 ohms to 1.90 ohms. It the resistance value falls outside of this range, perform the Repair Procedure.
NOTE:
SOME VEHICLES USE CARBON FIBER HEATING ELEMENTS. CARBON FIBER HEATING ELEMENTS HAVE A RESISTANCE OF 10
TO 14 OHMS IN THE BOLSTER ELEMENT. SEATS WITH CARBON FIBER ELEMENTS HAVE TWO CONNECTORS AT THE BACK OF
THE SEAT. A TWO WAY CONNECTOR AND A FOUR WAY CONNECTOR. CARBON FIBER HEATING ELEMENTS ARE NOT
SERVICEABLE AND REQUIRE REPLACEMENT OF THE SEAT COVER.
