Field Remedy: 2313
Subject: |
Engine compartment electronics module -
Water ingress |
Models: |
Engines: |
Option: |
Corsa-D 2008... |
All |
|
Complaint: |
Bad or no engine running / MIL-Lamp on /
Several electrical malfunctions / Discharged battery. |
Cause: |
Water ingress in engine compartment
electronics module. |
Production: |
Modified parts have been introduced in
production as of VIN W0L0SDL0886089257 (plant Eisenach), VIN
W0L0SDL0884266553 (plant Zaragoza). |
Remedy:
In case of customer complaint the electric connectors in the engine
compartment electronics module have to be checked for corrosion and
if necessary restored. Additional sealing operations have to be
carried out as well.
Working procedure:
1. Open bonnet.
2. Disconnect battery.
3. Detach cover engine compartment electronics module.
4. Disconnect connector (1) and pull it off upwards (picture I).
5. Check connector pins for corrosion (picture II)
- If connector pins and crimps show indication of corrosion, they
have to be removed from the connector terminal, cleaned and
again applied into the connector. Removing and installing of the
connector pins is mentioned below beginning with step 7.
- If contact areas of the connector pins are already damaged by
corrosion they have to be replaced. The working procedure is
mentioned below beginning with step 6.
Note:
Maximum 6 connector pins are allowed to be replaced. If more
than 6 connector pins are damaged the front and the rear body
wiring harness have to be replaced.
Note:
Connector pin number 16, 33 and 34 (1) belong to the
Airbag-System. If one of these connector pins shows corrosion
the front and the rear body wiring harness have to be replaced
as well.
Note:
If the front and the rear body wiring harness have to replaced,
the accordant wiring harness code has to be observed.
Identification of wiring harness can be carried out by a label
on the wiring harness behind the left service lid in the luggage
compartment or by means of Tech 2 in the Body-Control-Module.
6. Remove wind protection panel
- see working procedure "Replace wind protection panelling",
group "A", Service-Instruction Corsa-D.
(Document number 01501230)
7. Remove connector inset from engine compartment electronics
module (picture III)
- Unscrew 1x nut (1)
- Unlock 3x latch (arrows) with screwdriver
- Detach connector inset (2) upwards and slew it clockwise
to the side.
8. Open connector inset (picture IV)
- Unlock cover (2) on the bottom of connector inset 3x (arrows)
and detach
- Remove 3x cable strap (1).
9. Unlock locking comb connector locking (picture V)
- Pull locking comb (1) with screwdriver into direction of the
arrow
- Split wiring harness isolation (2) about 10 cm and cut it off.
10. Eject damaged connector pin with special tool MKM-923-1 from
connector.
11. Cut ejected cable direct behind connector pin and bare wire
about 3 mm.
Note:
If corrosion has advanced up to the copper cable cut accordingly
longer.
12. Bare repair cable about 3 mm.
13. Shorten shrinkable tubing to a length of about 30 mm.
14. Connect repair cable and ejected cable with connecting sleeve
Note:
Push up shrinkable tubing before.
15. Push shrinkable tubing over connecting point and it heat up
with a hot air blower until hotmelt adhesive escapes even.
Note:
Avoid damages to the other cables by heat.
16. Plug connector pin into connector in its original position.
Note:
Step 10. till 16. have to be carried out for all damaged connector
pins maximum 6 pieces). Attend for offset of the several
connecting points. Connecting points have to be located only in
the hatched area (2, picture VI). In area (1) no connecting points
are allowed to be located.
Note:
The valid instructions for the repair of wiring harnesses
have to be observed, quod vide "Safety regulations of electrics/
electronics", group "N", Service-Instruction Corsa-D
(Document number 00026357).
17. Insert locking comb connector pins and lock it.
18. Seal wiring harness (picture VII)
- Take off the half amount of the seal plasticine (2) from the
repair kit and knead it between the cables in the area of the
wiring harness stabiliser (1).
19. Isolate wiring harness (picture VIII)
- Laminate bared area of wiring harness with insulation tape (1)
completely
Note:
To ensure a better distribution of seal plasticine inside
attract insulation tape solid.
Note:
Use PVC-Tape, no textile tape.
- Affix self-adhesive sponge rubber mat (2) as shown onto wiring
harness
Note:
Beginnings (3) have to show upwards.
- Insert caple strap (4) into wiring harness stabiliser (5) and
tighten.
20. Seal underside of plug connection front body wiring harness
with special grease
- Fill all cells of plug connection (1, picture IX) front body
wiring harness from the underside completely with special grease
(P/N 09163339 - arrows).
21. Close connector inset
- Attach 2x cable strap and tighten
- Close cover until latches clip in.
22. Seal upper side of plug connection front body wiring harness
with special grease
- Fill cell on upper side of plug connection (1, picture X) with
special grease (P/N 09163339 - arrows) until all connector pins
are covered completely.
Note:
During working with special grease, take care that no other areas
get in contact with the special grease as the sealing compound
will not adhere on areas already coated.
23. Install connector inset into engine compartment electronics
module (picture XI)
- Insert connector inset (2)
Note:
Latches (3x) have to clip in audible.
- Screw in 1x nut (1) and tighten 8 Nm
- Check all components in electronics module for proper mounting.
24. Seal bulkhead closing part below wind protection panel with
foam seals (picture XII)
- Unscrew screw (1) from bulkhead closing part (2)
- Lift bulkhead closing part and affix self-adhesive foam seal
strip (3) as shown
- Attach self-adhesive washer onto screw (1) and pull off adhesive
protective foil
Note:
Adhesive side has to show away from screw head.
- Screw in screw and tighten
Note:
Attend not to damage self-adhesive washer through tightening.
25. Seal bulkhead closing part below wind protection panel with
compound glueing seal (picture XIII)
- Apply compound glueing seal (P/N 90485251 - arrows) in the
area (1) of the opening for washer-fluid hose (arrows)
Note:
Seal opening on upper and lower side.
- Apply compound glueing seal (P/N 90485251 - arrows) in the
area (2) between bulkhead closing part (3) and body (4).
Note:
Before application of compound glueing seal fit wind protection
panel slackly and connect flanges of washer-fluid hose.
Washer-fluid hose must be positioned as shown behind the
wiring harness.
26. Install water protection cover (picture XIV)
- Install water protection cover (1) as shown
Note:
Washer-fluid hose (2) must run in designated guide.
- Attach fixing tab (3) on side panel (5) of electronics
module
Note:
Fixing tab (3) must be located between guides (4) of
electronics module.
- Affix cover to wiring harness with cable strap (6)
Note:
Cable strap must run between guides (7).
- Attach cover electronics module until latches clip in audibly.
27. Install wind protection panel
- see working procedure "Replace wind protection panelling",
group "A", Service-Instruction Corsa-D.
(Document number 01501230)
28. Connect battery.
29. Close bonnet.
30. Program volatile memory.
Spare-Parts: Part-No.: Catalogue-No.:
Repair kit 13301544 90 12 277
Shrinkable tubing 90543875 12 86 666
Connecting sleeve 90543865 12 86 663
Cable strap 90039907 12 88 900
Compound glueing seal 90485251 15 03 295
Washer self-adhesive 90184910 05 60 768
Special grease 09163339 19 48 877
Labour Times: TC: Hours:
U3 231 30 Sealing wiring harness 90 1,1
The costs for this repair will be covered during the normal warranty.
The regular warranty procedure will apply.
FunctionalGroup: |
N - Electrical Equipment |
Complaint Group: |
04 - Electrical failures |
Trouble Code: |
P1120,P2121,B2580,other |
|