NHTSA ID Number: 10045179
Manufacturer Communication Number: SP-255-024
TSB/Document Date: 2012-08-22
Summary
VOLVO
TRUCK: RELOCATING OF ENGINE VGT ACTUATOR CONNECTOR AND MOUNTING ARRANGEMENT WAS DEVELOPED TO ELIMINATE FRETTING OF CONNECTOR PINS IN ENGINE DIAGNOSTIC TROUBLE CODES (DTC) AND MISSING SIGNAL. *PE
SB-10045179-9296
Volvo Trucks North America
Greensboro, NC USA
Service Program
Trucks
Date
Group
No.
Release
Page
6.2012
255
024
01
1( 7 )
Engine VGT Actuator and TSS Sensor
Connector Relocation
VN, VHD, VAH
D13
SP 255-024, Engine VGT Actuator and TSS Sensor
Connector Relocation
(June 2012)
A new campaign is available to prevent engine diagnostic trouble codes (DTCs) and missing
signal from the Engine Variable Geometry Turbocharger Actuator (Engine VGT Actuator)
on VOLVO D13 US2010 engines with an Allison transmission. This condition is caused by
fretting of the connector pins in the engine VGT actuator connector. Relocation of the engine
VGT actuator connector and a new mounting arrangement has been developed to eliminate
this condition. See the table below for the list of parts required for this campaign.
W2072321
Required Parts
Allison Transmission Parts List
PV729-SP255-024_V
Item #
QTY
Part Number
Description
1
1
21852745
Bracket Turbo, SRA
2
2
946173
Flange Screw
3
2
980881
Push-In Cable Tie
USA52946
Volvo Trucks North America
Service Program
Date
6.2012
Group
No.
Release
255
024
01
Relocation Procedures for the Allison Transmission
You must read and understand the precautions and guidelines in Service Information,
group 20, "General Safety Practices, Engine" before performing this procedure. If you
are not properly trained and certified in this procedure, ask your supervisor for training
before you perform it.
NOTE: Information is subject to change without notice. Illustrations are used for reference
only and can differ slightly from the actual vehicle being serviced. However, key
components addressed in this information are represented as accurately as possible.
Allison Transmission
1 Apply parking brake and place shift lever in neutral.
2 Raise hood.
3 Disconnect all cables from the negative (ground) battery terminals to prevent personal
injury from electrical shock and prevent damage to electrical components.
4 Disconnect the engine VGT actuator and Turbine Shaft Speed (TSS) Sensor harnesses.
W2072322
Page
2( 7 )
Volvo Trucks North America
Service Program
Date
6.2012
Group
No.
Release
255
024
01
5 Remove the engine VGT actuator and TSS sensor connectors from the mounting bracket.
Note: Discard the attachment ring/nut (Item 1).
W2072323
6 Remove the connector mounting bracket from engine.
Note: Discard the mounting bracket and secure the mounting hardware for installation of
new bracket.
W2072324
Page
3( 7 )
Volvo Trucks North America
Service Program
Date
6.2012
Group
No.
Release
255
024
01
7 Inspect connectors for green/brown dust on the pins or sockets.
Note: If green/brown dust is present in the areas highlighted in the figure below, clean
the male and female engine VGT actuator and TSS sensor connectors with approved
electrical solvent. Allow the connectors to thoroughly dry before assembly.
W2072325
8 Install the new harness mounting bracket (part number 21852745). Tighten fasteners to
24 ± 4 Nm (18 ± 3 ft-lb).
W2072326
Page
4( 7 )
Volvo Trucks North America
Service Program
Date
6.2012
Group
No.
Release
255
024
01
9 Install the push-in cable ties (part number 980881) into the M8 threaded holes in the new
mounting bracket.
Note: Ensure the push-in cable tie flanges are tightly secured against the M8 weld nuts in
the new mounting bracket.
W2072327
10 Connect and lock the engine VGT actuator and TSS sensor connectors together.
W2072328
Page
5( 7 )
Volvo Trucks North America
Service Program
Date
6.2012
Group
No.
Release
255
024
01
11 Secure both connectors with the push-in cable ties.
Note: Ensure the cable tie is in the end groove between connector flange and back
shell as shown in figure below.
W2072329
12 Reconnect all previously removed cables to the negative (ground) battery terminals.
13 Lower hood.
Page
6( 7 )
Volvo Trucks North America
Service Program
Date
6.2012
Group
No.
Release
255
024
01
Reimbursement
This repair is covered by an authorized Service Program. Reimbursement is
obtained through the normal claim handling process.
Claim Type (used only when uploading from the Dealer Bus. Sys.)
B
Recall Status
Vehicle inspected, repair not required
1- Inspected OK
Vehicle repaired per instruction
2- Modified per
instruction
Labor Code
Primary Labor Code
25531-0-02
0.3 hr.
Time to take charge and determine campaign status
17003–0–01
0.3 hr.
Causal Part
21551428
Authorization Number
SP255024
Expiration Date
05 JUN 13
Note: Take Charge Time is not included in the Labor Code for this operation. Take charge
may be eligible but can only be used once per repair visit. If vehicle is having other warranty
repairs performed, take charge should be charged to the warranty repair, otherwise take
charge can be charged to this service program.
Page
7( 7 )
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TSB/Document ID: SP-255-024
Replacement Service Bulletin Number:
MFR Communication Date: 2012-06-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE
MFR Component System:
MFR Component Subsystem:
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