LI54.18-N-064032

Check Engine Light with multiple control
modules exhibiting numerous CAN codes
Topic number
LI54.18-N-064032
Version
1
Design group
54.18 Cable harnesses
Date
05-10-2016
Validity
Model 906 with OM642 engine
Reason for change
Reason for block
Complaint:
Check Engine Light with multiple control modules exhibiting numerous CAN codes such as:
N3/35 CDI Control unit - DTCs P104000, P143B00, P172500
N30/4 ESP Control unit - C107600
N10 SAM Control unit - 9090, 9091, 90D8, 90D2, 90D3, 90D5, 90D9, 9094, 9095, 9099
A1 Instrument Cluster - 9110
S98 KLA Air Conditioning - B1701, B1702, B1703
N33/4 PTC heater booster (PTC) - B1021, B1022, B1028, B1029, B1030
N2/14 Supplemental restraint system (SRS) - B11B6, B119C
N69/1 Driver Door (TSG) - B1022
Cause:
An after market system such could be installed by an upfitter in the vehicle.
Possible CAN connections to inspect:
1) Interlock function while mobility upfit with wheelchair lift
o CAN module "INTERMOTIVE" connected to I-CAN
2) Radio control "AXXESS" from the steering wheel button with aftermarket radio
o Upfitter like Airstream, Winnebago and assorted small companies
3) Ambulances upfit to achieve keyless-go system
o Engine running while the key is removed
The retrofit wiring may have been connected to the interior CAN circuit via the following:
•
Connector for the PSM
•
Left side interior CAN block
•
Spliced into Radio CAN wires
If the control unit fails on the upfitted system this may lead to the interior CAN system becoming inoperative.
Note: There should be no splicing into the vehicle's interior CAN system.
Attachments
File
05-10-2016 3:13 PM
© Copyright Daimler AG
Description
DAVANDE
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AXXESS control unit.JPG
AXXESS Control unit
WP_20160505_001.jpg
AXXESS Cable routing
WP_20160505_002.jpg
Cable and AXXESS control unit
Remedy:
Inspect the vehicle for upfitted device which may be improperly connected to the Interior CAN system and disconnect
from the interior CAN system.
Advise the customer to contact the upfitter to have the issue with the affected system corrected.
Potential remedies available to the upfitters.
1) PSM software can be used for wheelchair upfit for "Intermotive" lift cases
2) Several aftermarket radio manufactures are working with MBUSA and have PSM solution for this upfit
3) PSM SCERF function is accepted from most ambulances customers, can simulate a lock-unlock function while engine running
This is not a warrantable repair and should be charged to the upfitter.
Symptoms
Power generation / Engine management / Indicator lamp / Electronic diesel control / lit
Overall vehicle / Networking / CAN/FlexRay communication / Malfunction
Attachments
AXXESS control unit.
JPG:
05-10-2016 3:13 PM
© Copyright Daimler AG
DAVANDE
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© Copyright Daimler AG
DAVANDE
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WP_20160505_001.jpg:
05-10-2016 3:13 PM
© Copyright Daimler AG
DAVANDE
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© Copyright Daimler AG
DAVANDE
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WP_20160505_002.jpg:
05-10-2016 3:13 PM
© Copyright Daimler AG
DAVANDE
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© Copyright Daimler AG
DAVANDE
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