NHTSA ID Number: 10218894
Manufacturer Communication Number: 56-005
TSB/Document Date: 2022-08-30
Summary
During PTO mode, the engine will not ramp up to the set RPM speed.
8/3/22, 6:41 AM
Vehicle Service Bulletin
56-005 Engine RPM Ramp Up in Power Take Off (PTO) Model 365, 367, 389
8/2/2022
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Clone
56-005
Section
PTO - 56
Subject
Engine RPM Ramp Up in Power Take Off (PTO) – Model 365, 367, and 389
Whats New Abstract
During PTO mode, the engine will not ramp up to the set RPM speed.
Condition
Engine does not recognize the “PTO engage” electrical signal and will not ramp up to set RPM speed.
Chassis Affected
Model 365, 367, and 389 chassis manufactured from 11/13/2020 through 4/06/2022 and equipped with PTO.
Action
Fix-As-Fail
If a customer comes into your dealership and demonstrates the condition above, switch the PTO engage diode
from the incorrect circuit to the correct circuit. Use the procedure below.
Warranty
Through Standard Warranty or any applicable active Extended Warranty, Peterbilt
will pay for parts at dealer
net plus applicable mark-up and labor:
1.0 hours labor to relocate the PTO engage diode. Use Quick Claim code 56005.
File an additional claim for extraordinary circumstances. A quick claim for standard labor must be filed
first.
In PRWS, if the Quick Claim is not available, file a long form claim and reference the bulletin number in
the claim story. Do not enter the bulletin number in the campaign code field.
1/3
8/3/22, 6:41 AM
Vehicle Service Bulletin
PRWS CLAIM CODING
Campaign N/A
Code:
Campaign
Type
Non- Campaign
Claim
Truck
Category:
Repair Type
Fix-As-Fail
Customer 173
Concern
Code
Causal Code
28
Corrective 13
Action
Code
Responsibility Standard Warranty
Code:
Failure
Location
056001110
Causal Part
Supplier
Code
N/A
SRT Code
A92-6118*
B56-005
1.0 hours labor to
relocate the PTO
engage
diode (1.9m
chassis)
Parts
No Parts Required For This Bulletin.
Background
hassis equipped with the 1.9m VMUX chassis harness A92-6118* or A92-6119* and a “2” or “5” in the “J”
C
position will be affected.
Procedure
Please follow your dealership's safety procedures and precautions to ensure the vehicle can be safely repaired
and maintained.
https://paccarnet.sharepoint.com/sitepages/vehsvcbltin.aspx?ctx=eyJ3ZWJVcmwiOiJodHRwczovL3BhY2Nhcm5ldC5zaGFyZXBvaW50LmNvbS9zaX…
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8/3/22, 6:41 AM
Vehicle Service Bulletin
See attached Procedure document in Links section below.
Attachments
PTO Harness/Diode Relocation Procedure
Authored by: K. Powell
3/3
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TSB/Document ID: 56-005
Replacement Service Bulletin Number:
MFR Communication Date: 2022-08-02
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING
MFR Component System:
MFR Component Subsystem:
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