Restraints - Air Bag Lamp ON/False DTC's B1388/B1389

VOLUME
3

GROUP
Body

NUMBER
029

MODEL
Sorento

DATE
April 2005

SUBJECT:
SORENTO SEAT TRACK POSITION SENSOR DTC RELATED IMPROVEMENTS

This bulletin provides information related to replacement of the Air Bag Diagnostic Unit (ADU). Some 2002-2004 Sorento owners may complain of the SRS warning illumination.

A combination of seat position/adjustment, hardware production toleances and parameter settings may cause the SRS warning light to illuminate resulting in 0 stored in the ADU memory even though no actual faults exist in either the sensor or its circuit.

To reduce incidence of "false" DTCs B1388 or B1389 (Seat Track Position Sensor), an upgraded ADU with revised software is being made available.

CAUTION
Wait at least 30 seconds after the ignition key is shut OFF and the battery is disconnected before servicing the Air Bag System. Back-up power is available for approximately 150 mS.

REPLACEMENT PROCEDURE:





1. Record customer's radio station presets.

2. Disconnect the negative battery cable. Wait at least, 30 seconds after the battery has been disconnected to service the Supplemental Restraint System (SRS). Back-up power for the air bag system is available for approximately 150 mS.

3. Remove the center console storage bin, as shown.








4. Remove the rear ashtray to access the retaining screw on rear cup holder assembly. Gently pry out cup holder assembly.








5. Release and disconnect electrical connector, then remove ADU control module by removing one (1) retaining screw and two (2) retaining nuts.





6. Install new ADU control module, tighten retaining screw and nuts to 72~120 in-lbs (8~14 Nm). Connect electrical connector to the ADU.

7. Install rear cup holder assembly, secure with retaining screw.

8. Install center console storage bin and ashtray.

9. Connect the negative battery cable.

10. Turn ignition switch ON, verify lamp sequence. Lamp should blink six (6) times when the ignition switch is turned ON, then go off.

11. Set the clock to the proper time. Program preset radio stations to the customer's preference as recorded in step one.





MIL OPERATING METHOD

AFFECTED PRODUCTION RANGE:

Sorento vehicles produced prior to 05/21/04.





PART NUMBER INFORMATION:





WARRANTY CLAIM INFORMATION: