NHTSA ID Number: 10075712
Manufacturer Communication Number: P10859
TSB/Document Date: 2016-07-07
Summary
Certain MACK
CHU, CXU, and GU trucks built between 11/11/2013 and 01/14/2015, equipped with front radar may experience loss of front object detection or erratic operation of cruise control functions. The terminal seals of the harness is allowing moisture and corrosion to build up in the front radar harness. To ensure proper operation of the front radar, the harness is inspected for the proper seal and/or corrosion. If the harness or seal fail inspection, replacement of the harness is required. Follow the inspection and repair procedures outlined in this document.
Mack Trucks, Inc.
Service Program
Date
3.2016
Group
No.
Release
366
859
04
4 Remove the cable ties securing the front radar harness.
5 Disconnect the front radar harness from the main cab harness.
W3103450
6 Remove the existing front radar harness.
Note: Note the routing of the existing harness for installation of the replacement harness.
7 Route the replacement front radar harness into position as noted.
8 Connect the replacement front radar harness to the main cab harness.
W3103450
Page
11(19)
Mack Trucks, Inc.
Service Program
Date
3.2016
Group
No.
Release
366
859
04
9 Use the cable ties listed on page 1 to secure the front radar harness.
Note: Ensure there is enough harness at the other end to connect to the front radar
sensor.
10 Position the replacement front radar sensor, spacers, and shroud.
W3103589
11 Install the fasteners and flat washers securing the front radar sensor and shroud.
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Page
12(19)
Mack Trucks, Inc.
Service Program
Date
3.2016
Group
No.
Release
366
859
04
12 Tighten the fasteners securing the front radar sensor and shroud to 27 ± 4 Nm (20 ± 3 ftlb).
13 Connect the front radar harness to the radar module.
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14 Close the hood.
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Page
13(19)
Mack Trucks, Inc.
Service Program
Date
3.2016
Group
No.
Release
366
859
04
15 Perform the Sensor, VOLVO Enhanced Cruise (VEC), Alignment Check and Adjustment
procedure as shown in steps 17 – 26.
16 Place a digital angle gauge on top of the vehicle frame rail as shown. Reset the digital
gauge to 0 degree.
W8085795
17 Attach Bendix Alignment tool (part number K065284) to the front of the radar sensor cover.
Note: A cover (2) is included with the replacement radar sensor. If the cover is missing,
use assistance to hold the alignment tool (1) on the radar sensor.
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Page
14(19)
Mack Trucks, Inc.
Service Program
Date
3.2016
Group
No.
Release
366
859
04
18 Attach the digital angle gauge to the alignment tool.
19 Check the vertical alignment tool and ensure the digital angle gauge is reading 0 degrees.
Note: If the vertical alignment tool with the angle gauge is not reading 0 degrees,
adjustment of the radar sensor’s vertical angle is required.
W3103591
20 If applicable, adjust the vertical alignment of the radar sensor to 0 degrees.
Note: Periodically recheck the alignment tool and angle gauge during the vertical
alignment procedure.
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Page
15(19)
Mack Trucks, Inc.
Service Program
Date
3.2016
Group
No.
Release
366
859
04
21 Using the alignment tool. turn the laser on and check the sensor’s lateral alignment.
CAUTION
Do not stare into the laser beam (2).
Note: Use the tow hook receptacles (1) or frame rail ends as a measuring point if
possible.
22 After the first lateral measurement (3), turn the laser off.
23 Flip the laser and orient it towards the opposite side of the truck.
24 Turn the laser on, and record the second lateral measurement (3) from the tow hook
receptacle (1).
Note: If the lateral measurements vary by more than 3 mm (0.125 in) of each other, adjust
the lateral alignment of the radar sensor.
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Page
16(19)
Mack Trucks, Inc.
Service Program
Date
3.2016
Group
No.
Release
366
859
04
25 If applicable, adjust the lateral alignment of the radar sensor until the two measurements
are (Less than 3 mm (.125 in) of each other.
W3103593
26 If applicable, remove the cover from the front of the radar sensor.
Note: Failure to remove the cover will cause a Diagnostic Fault Code (DTC).
W3103594
27 Continue to page 18, and (Commission the truck for Operation).
Page
17(19)
Mack Trucks, Inc.
Service Program
Date
3.2016
Group
No.
Release
366
859
04
Commissioning the Truck for Operation
1 Connect all of the cables to the battery’s negative terminals.
W3086758
2 Remove the wheel chocks.
W7086759
3 Check the operation of the (Adaptive Cruise Control).
Note: If a diagnostic trouble code (DTC) is logged after the repairs are complete,
connected the truck to a PC with BENDIX A-Com software to clear the DTC.
4 Test drive the truck and check the operation of the adaptive cruise control.
Note: This is a separate operation.
Page
18(19)
Mack Trucks, Inc.
Service Program
Date
3.2016
Group
No.
Release
366
859
04
Reimbursement
This repair is covered by an authorized
Service Program. Reimbursement is obtained
via the normal claim handling process.
UCHP
Reimbursement
eWarranty
Reimbursement
Claim Type (used only when uploading from
the Dealer Bus. Sys.)
B
B
Recall Status
Vehicle inspected, repair not required
1- Inspected OK
Vehicle repaired per instruction
2- Modified per
instruction
Labor Code
Primary Labor Code (Front Radar Harness
Inspection)
3000–06–09–01
0.3 hrs
2733M–01–96
0.3 hrs
Labor Code (Front Radar Harness Replacement)
3665–03–09–02
1.2 hrs
2733N–01–96
1.2 hrs
Labor Code (Front Radar and Harness
Replacement)
3665–03–09–03
1.4 hrs
2733P–01–96
1.4 hrs
Take to take charge and determine campaign
status
1700–16–01–01
0.3 hrs
101AA–0A–00
0.3 hrs
Causal Part
22134349
221234349
SCC Code
S6931
NA
Authorization Number
NA
PI0859
Expiration Date
31-MAR-2016
31-MAR-2016
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
19(19)
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TSB/Document ID: P10859
Replacement Service Bulletin Number:
MFR Communication Date: 2016-03-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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