34-085 - ABS wheel speed sensor corrosion resolution

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Service Bulletin
34-085

Section
34 - Lighting and Wiring

Description
ABS Wheel Speed Sensor Water Intrusion

Release Date
2/28/2020

Introduction
Vehicles built from 9/14/2004 to 8/7/2018 may have the connector seals on the wheel speed sensor incorrectly installed, which may
lead to sensor corrosion in some vehicles.

Resolution
Information Only
This bulletin is to inform dealers of possible repair paths for incorrectly installed wheel speed sensor connector seals.
Follow the proper troubleshooting steps for any fault code as usual. If upon visual inspection the connectors are not properly
installed, correctly seat the seals if needed and check for corrosion. If the connector is corroded, replace the ABS harness as
necessary.
Dealers will file for standard warranty if the vehicle is eligible. If the vehicle is no longer under warranty, the repair path provided will
minimize customer downtime and technician diagnostic time.

Warranty
If the customer is experiencing the condition listed above, Peterbilt will pay for parts at dealer net plus applicable mark-up and labor
for vehicles within standard warranty:
0.8 hours of labor to inspect all wheel speed sensors and connectors, and reseat the connector seals if necessary.
0.4 hours to R&R each front wheel speed sensor if corrosion is found.
0.7 hours to R&R each rear wheel speed sensor if corrosion is found.
5.3 hours of labor, which includes 0.8 hours for inspection, to remove and replace the ABS harness if corrosion is found.
A clear picture of the corrosion must be provided for a claim to be processed for any harness or sensor replacement. If
multiple sensors are to be replaced, a picture for each sensor is required.
File a long claim form referencing 34-085.
For Field...

Enter...

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34-085 - ABS wheel speed sensor corrosion resolution

Failure Location

013-011-002

Failure Type

700

Claim Type

N

Campaign Number

34-085

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SRT 013-199
0.8 hours to inspect the seals on the wheel
speed sensor connector, and reseat the
seals if necessary.
SRT 013-200
0.4 hours to R&R each front wheel speed
sensor. Includes completing diagnostic
checklist, attach to packing tag, and
adjustment.
Labor
SRT 013-203
0.7 hours to R&R each rear wheel speed
sensor. Includes adjustment.
SRT 013-212
4.5 hours to remove and replace ABS
Chassis Harness as needed. Includes
wheel speed sensor inspection. For MX-13
add SRT 032-050 for starter R&R. For
6S/6M ABS add 1.9 hours.

Parts
Parts are available from PACCAR Parts.

Quantity

As Needed

Part Number
Varies – Refer to Web Ecat if harness
replacement is necessary
Varies – Refer to Web Ecat if Wheel
Speed Sensor replacement is
necessary
Source Locally

As Needed

V46-1003-1750200

1 as needed
Up to 4 as
needed

Description
ABS Harness
Wheel Speed Sensor
Cable Ties
Nylon Abrasion Shield

Procedure
Consult the procedures in the Attachments section to perform the wheel speed sensor inspection.
Properly seat any seals that are outside of the connector, as shown in Inspection procedure.
As stated in the inspection procedure, if any corrosion is present on the harness or wheel speed sensor, refer the attached
Removal and Replacement Procedure to replace the ABS harness. Refer to bulletin 34-066 - Harness Damage and Repair
Quick Guide for additional information on how to proceed if a harness is corroded or damaged.
4. If corrosion is found on the Wheel Speed Sensor side of the connection, refer to the Wheel Speed Sensor Service Data
attachment for replacement.
1.
2.
3.

Attachments

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34-085 - ABS wheel speed sensor corrosion resolution

Page 3 of 3

Inspection Procedure
ABS Harness Removal and Replacement Procedure
Wheel Speed Sensor Service Data

Authored by: PR

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