Air Bag System - SRS Lamp ON/DTC's 9103/9123 Set
Date: December 12, 2005Order No.: P-B-91.60/96
Supersedes:
Group: 91
SUBJECT:
Model 171.454/456/473, Up to VIN A081917 SRS Light Illuminated
If you receive customer reports in the above model vehicles of the SRS light being illuminated accompanied by either of the diagnostic fault codes listed below, perform the following procedure. Replacement of the contact spiral is not necessary.
Fault Codes:
DTC 9103- the resistance value in the ignition circuit containing component R12113 is too high
DTC 9123- the resistance value in the ignition circuit containing component R12/14 is too high
1. Remove the clock spring contact. Refer to WIS document AR46. 10-P-0200V.
2. Remove the Electronic Ignition Switch (EIS). Refer to WIS document AR80.57-P-1000V.
Note:
The battery ground cable must be disconnected. If this step is omitted, other faults may be introduced into the vehicle when cutting the SCM harness.
3. Unclip N80 connector from jacket tube by pushing on lock tabs (Figure 1). Pull harness to Steering Column Module (SCM), out through opening for Electronic Ignition Switch (EIS) (Figure 2).
4. Make note of pin locations and wire colors. On the SCM connector, cut the 0.50 sq.mm wires connected to Airbag pins 3, 4, 5, 6, CAN pins 10, 11, 12, 13, and the 0.75 sq.mm wires connected to Circuit 30 and 31 pins 8 and 9, 60 mm from the terminal ends.
Note:
Reference WEB ETM document PE46.10-U-2101TA to confirm pin locations and wire colors.
5. Cut the repair wire 75 mm from each terminal end. One repair wire makes two pigtails. There are two different size repair wires. Part no. A001 540 87 05 is 0.50 sq.mm and part no. A001 540 88 05 is 0.75 sq.mm.
6. Strip approximately 15 mm of insulation from the repair wires and the SCM harness wires. Twist the 15 mm stripped ends of the repair wire and SCM harness wires.
7. Using solder connector (A002 546 13 41) solder the repair wires (A001 5408705) onto the four Airbag wires, pins 3, 4, 5, 6 and the four CAN wires pins, 10, 11 12, 13 in accordance with the specified repair method in WIS document AR00.19-P-0100A.
8. Using solder connector (A002 546 13 41) solder the repair wires (A001 540 88 05) onto the two wires for circuits 30 and 31 (pins 8 and 9) in accordance with the specified repair method in WIS document AR00.19-P-0100A.
9. Remove the lock on the SCM socket connector (Figure 3). Depress the lock tab on the terminal and remove one cut wire terminal at a time. Install the appropriate repaired wire into the correct position in the socket connector.
Note:
Ensure during the reassembly of the SCM connector that all terminals are reinstalled in their correct positions. Continue the twist for CAN wires connecting to pins 10, 11, 12, and 13. Reference WEB ETM document PE46.10-U-2101TA to confirm pin locations and wire colors.
10. Insulate the solder connectors and the repaired harness with fabric tape.
11. Reassemble the vehicle in the reverse order.
Note:
Replacement of the contact spiral is not necessary. New connectors can be identified with an "S" marking (Figure 4).
Parts Information
Note:
The following allowable labor operations should be used when submitting a warranty claim for this repair.
In Case of Warranty