TI 54.21U1906A

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Technical
information
TI No.: 54.21U19068A
Distribution list: D
Distribution date:
19.12.2019
Valid until: 31.12.2039
The point of contact is the EvoBus after-sales service in each country
Model:
TC 400 USA
MODEL SERIES:
629540; 629557
TITLE:
TC 400 USA - Repositioning the diagnostics connector
COMPLAINT
The position of the diagnostics connector does not conform to legal requirements.
CAUSE
Error in the documentation.
REMEDY
Fit a new diagnostics connector in the legally specified position.
MEASURE TYPE
The scope of the work is carried out as part of a compliance recall (RC).
Observe the following at the time of parts ordering:
The transfer rates used in the diagnostics system differ by model year. Vehicles produced
in a model year up to 2015 have a baud rate of 250 k (black diagnostics connector);
vehicles from model year 2016 onwards use a baud rate of 500 k (green diagnostics
connector).
The model year is encoded in the 10th character of the chassis number. For each vehicle,
the respective model year can be determined from the overview provided.
DEFECT PART HANDLING
The GALA (warranty parts processing) stipulations are binding. Workshops without GALA
should scrap the defect parts immediately after the repair.
REPLACEMENT PARTS REQUIRED
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Quantity
Designation
Number
Comment
1
Black diagnostics connector
A 629 540 81 27 05
Baud rate 250 k
valid for model year up to
2015
1
Green diagnostics connector
A 629 540 79 27 05
Baud rate 500 k
valid for model year from
2016 onwards
1
Retaining plate
A 620 689 04 11 05
1
Cover
A 620 689 03 07 05
2
Self-tapping screw 4.8 x 16
N 000000 000528
Fastening of retaining
plate to bodywork
4
Self-tapping screw 2.9 x 13
N 000000 000879
Fastening of diagnostics
connector to bracket
2
Self-tapping screw 4.2 x 13
N 000000 000521
Fastening of cover to
bracket
1
Connector housing
A 026 545 97 28 05
7
Flat-pin connector
A 035 545 24 28 05
10
Cable tie
A 004 997 18 90 05
OPERATION TEXTS
Operation
Operation text
Working time/h Comment
Reposition the diagnostics connector
1.7
no.
02-1572
The times apply for work at an hourly rate.
DEFECT NUMBER
Defect no.:
Designation
5494176
CODEWORD
5421U19068
INTRODUCTION OF MODIFICATIONS INTO SERIES PRODUCTION
01.12.2019
WARRANTY AND GOODWILL SETTLEMENTS
Field measure type RC: 100 % of costs will be accepted.
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BUS/MCC
BUS/MCC-O
pp.
pp.
Johannes Lehmann
Markus Fischer
Attachments
Procedure
Warning
Risk of injury and fire. There is a risk of injury if work is carried out on the electrical
system or fuses incorrectly.
Details...
Procedure
●
1.
→: Overview of model year encoding in chassis number
Switch off the battery isolating switch.
M54.22-0006-80
2.
Remove the cover on top of cockpit (1).
3.
Open the cover to stowage compartment (2) and remove stowage tray (3).
4.
Unclip needle-punched nonwoven
fabric (4) in the driver's footwell and
set it aside.
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M54.22-0007-71
Fitting the diagnostics connector to drawing specification
M54.22-0008-80
5.
Arrange retaining plate (5) parallel with bodywork edge (6) and mark bore holes (8).
Note
Cut-out (7) for the electrical line must be facing upwards.
●
→: Installation drawing: diagnostics connector fastening
M54.22-0009-74
6.
Drill the holes using a twist drill (⌀ 3.9 mm).
7.
Secure retaining plate (5) using screws (9).
Note
Cut-out (7) for electrical line (12) must be facing upwards.
8.
Fit diagnostics connector (10) and secure it using screws (11).
Note
Feed electrical line (12) upwards through the cut-out.
9.
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Fit cover (13) and secure it using screws (14).
M54.22-0010-80
10.
Route electrical line (15) correctly along the existing wiring harness to the position of old
diagnostics connector (17) and secure it using cable ties.
Note
For easier access, it is possible to remove fuse carrier (16).
M54.22-0011-80
11.
Remove old diagnostics connector (17) and cut the electrical lines.
12.
Using electrical connector (20), connect the electrical lines of new (18) diagnostics
connector to the electrical lines of old (19) diagnostics connector correctly in accordance
with the pinout diagram.
●
13.
→: Pinout valid for the green and black diagnostics connectors
Make a tidy cut in the needle-punched
nonwoven fabric in the driver's
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footwell for new diagnostics connector
(21) and fasten the fabric in place.
M54.22-0012-71
Finishing tasks
1.
Fit all removed covers.
2.
Switch on the battery isolating switch.
3.
Updating vehicle documentation in the “VeDoc” system and updating bus-specific
electrical data
This document may contain confidential information.
For information only. Subject to ongoing technical
Distribution outside the production plant's distribution list is not
development. Not subject to the amendment service.
permitted.
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