Interior - L/H Front Seat Back Recliner Inoperative
72 09 04November 25, 2009
2021882
Vehicle Information
Condition
Seat, Recliner Inoperative, Vehicles without Memory Seats
Left front lumber/seat back recliner inoperative.
Technical Background
The driver side seatback recliner may stop operating or only move in one direction.
The lumbar/seat back recliner wiring harness, under the driver seat, may have come in contact (chaffed) with seat frame. Wiring harness damage may damage the circuit board in the seat adjustment switch.
If the seat back recliner becomes inoperative, inspect the lumbar/seat recliner wiring harness for damage.
Note:
Normal diagnostic process must be followed to verify proper operation of the seat reclining motor circuit. If the entire seat is inoperative, test fuses, wiring, and power at the seat switch. If the other seat motors are functional, the problem for the seat recliner function is in the switch, wiring to the reclining seat motor or the seat motor.
Regardless if lumbar/seatback recliner wiring harness is damaged or not, the protective edging Part No. 3C0971882 still needs to be installed on seat frame.
Production Solution
Harness protective edging added in production process, CW41/2009
Service
Procedure
^ Remove driver side seat from vehicle, see Repair Manual Group 72 in ElsaWeb.
^ Replace the seat adjustment switch 8E0 959 747A, see Repair Manual Group 72 in Elsa Web.
^ Install protective edging on seat frame where indicated and repair the lumbar/seat recliner wiring using the 1978A wiring repair kit.
^ Locate the lumbar/seat recliner motor harness near left side seat track.
^ Disconnect the T6cs connector.
^ Pull harness back to inspect the underside of the harness.
^ Check for harness chaffing or a cut from the seat frame on the wiring harness, 2-3 inches from the T6cs connector.
^ Install a 32mm piece of protective edging Part No. 3C0971882 on the seat frame as shown, where the seat harness rests on the seat frame.
^ Repair the lumbar/seat recliner wiring using wiring harness repair set 1978A. See Electrical System, Group 97 Wiring, Electrical Equipment, General Information, Wiring Harness Repair in ElsaWeb.
^ Reconnect and secure the T6cs connector into seat frame harness.
^ Install Seat, see Repair Manual Group 72 in ElsaWeb.
^ Reset basic settings on the seat motors.
Warranty
Required Parts and Tools
Additional Information
All part and service references provided in this Technical Bulletin are subject to change and/or removal.
Always check with your Parts Dept. and Repair Manuals for the latest information.