Subject:
Installation and removal of steering wheel for vehicles with
airbag
Vehicles:
Vectra-B, only MY ’98 vehicles
Condition:
Due to the installation of a modified steering column
intermediate spindle, the operations ”Steering Wheel, Remove and Install” and
”Airbag Contact Unit, Remove and Install or Replace” have been revised.
Improper installation of the steering wheel and/or airbag
contact unit without Special Service Tools can damage the contact unit.
Remedy:
This Technical Information Bulletin describes the revised
procedure for the above operations with the requisite Special Service Tools.
The described service instructions shall be incorporated into the next
published Service Instructions.
For all operations, observe the safety measures as specified
in the Service Instructions!
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Operation:
Steering Wheel, Remove and Install (Only MY ’98
Vehicles)
 Important!
Prior to performing installation operations affecting the
airbag, observe the ”Airbag Safety Measures”.
 Remove,
Disconnect
Disconnect negative terminal of battery and cover terminal.
Capacitor discharges automatically after one minute.
Unscrew both airbag unit bolts with MKM-604-29 (1).
Carefully lift airbag unit and detach wiring harness plug fuse (2).
Disconnect wiring harness plug (3) from airbag unit.
Important!
Always lay aside airbag unit with cushion side upward.
Move front wheels to straight-ahead position and remove
ignition key.
LHD vehicles
Turn steering wheel approx. 10° to the left until steering
lock engages.
RHD vehicles
Turn steering wheel approx. 40° to the right until steering
lock engages.
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Remove,
Disconnect
Disconnect horn/radio remote control wiring harness plug
(3). Bend up retaining washer (2) and unscrew nut (1) from steering spindle.
Install KM-210-B (4). Beforehand, unscrew spindle connector as far as
possible and detach steering wheel.
If necessary, carefully press puller hooks slightly
downward and then twist.
Important!
Do not release contact unit catch and steering lock
before re-installation.
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 Install,
Connect
LHD Vehicles
Contact unit must be in centre position — with arrow mark
on contact unit in the vicinity of both border lugs (1).
Guide both wiring harness plugs through opening in steering
wheel hub.
Place KM-989 on both guide pins (2) so that ”LHD” is
visible. Position steering wheel so that tool marking (3) vertically aligns
with steering column.
Important!
When positioning steering wheel, ensure that contact unit
cable connection fits through steering wheel opening without resistance.
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Install,
Connect
RHD Vehicles
Unscrew signal switch panelling fastening bolts.
Insert KM-988 in both holes provided for fastening bolts
(1). Release contact unit with screwdriver (2) and twist wiring harness plug
out of centre position toward 40° mounting edge.
Guide both wiring harness plugs through steering wheel hub
opening.
Place KM-989 on both steering wheel guide pins (4) so that ”RHD”
is visible.
Position steering wheel so that marking (5) vertically
aligns with steering column.
Important!
When positioning steering wheel, ensure that contact unit
cable connection fits through steering wheel opening without resistance.
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Install,
Connect
Insert new retaining washer. Screw fastening nut onto
steering spindle and tighten - 20 Nm/15 lbf. ft.
Secure fastening nut with retaining washer.
Install horn/radio remote control wiring harness plug.
Connect airbag unit wiring harness plug (1) and secure with plug-in retainer
(2).
Install and tighten both airbag unit fastening bolts (3)
with MKM-604-29 - 8 Nm/ 6 lbf. ft.
Connect ground cable to battery.
 Check/Visually
Inspect
If during the test drive it is determined that the steering
wheel spokes are not in the straight-ahead position for straight-ahead
driving, remedy accordingly.
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Operation:
Contact Unit — Airbag, Remove and Install (Only MY ’98
Vehicles)
Remove,
Disconnect
Remove steering wheel — see operation ”Steering Wheel,
Remove and Install (Only MY ’98 Vehicles)”
Remove signal switch panelling (1).
For vehicles with steering wheel height adjustment, unscrew
lock lever.
The lever becomes damaged in the process.
Press out lock (2) of wiring harness plug (3) with small
screwdriver and remove wiring harness plug.
Carefully detach 4 contact unit clips (4) and remove
contact unit.
Important!
Do not detach catch (6) and steering lock before
re-installation.
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Important!
If the catch (6) and/or steering lock have been detached by
mistake, determine the centre position (only after contact unit has been
removed).
With catch (6) depressed, carefully turn inner part of
contact unit anti-clockwise up to first noticeable resistance
(torque increase).
Turn it back approx. 2.5 rotations and then turn it further
in the same direction until arrows (7) align.
Install,
Connect
When installing a new contact unit, remove shipping insert
(5).
Note:
New contact units are always already in the centre position
(7).
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Install,
Connect
Attach contact unit with both guide pins (1) to signal
switch housing and press on uniformly and parallel (I) until the 4
clips (2) engage. Contact unit must be attached so that it does not tilt
(II).
Check for correct seating of clips. Clips must not
become damaged.
Attach wiring harness plug (3) to contact unit bushing (4)
and by pressing in slide (5) pull wiring harness plug onto bushing without
force.
Install signal switch panelling.
For vehicles with steering wheel height adjustment, screw
in new lock lever.
Install steering wheel — see operation ”Steering Wheel,
Remove and Install (Only MY ’98 Vehicles)”
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Time Allowances:
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Operation No.
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Operation
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Time Allowance
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C 4528 00
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Airbag Contact Unit replace
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.6
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TC: 01, 86, 87
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+: R + R steering wheel, program volatile memories
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Add:
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003
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For vehicles with steering wheel height adjustment
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.1
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M 0015 00
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Steering Wheel replace
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.4
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TC: 01, 07, 27, 54, 58
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+: Program volatile memories
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Add:
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006
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For vehicles with radio remote control
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.1
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Important:
The specified time allowances do not include the time
allowance for the vehicle set-up of .2 hr.
For reimbursement of the vehicle set-up time of .2 hr. in
warranty claims, enter the authorisation code ”T” and increase the main
operation time allowance by .2 hr.
The authorisation code may be used once per work order. It
may only be used more than once if the workplace and workteam are changed at
the same time.
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