Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
167-T2601-1
Service Bulletin/Repair Instructions
2011 – Current model year Hino Conventional and 2013 – 2020 model year Hino COE trucks equipped with reprogrammable control modules supported by the Hino Repro Server When reprograming a control module that is supported by the Hino Reprogramming server such as an Engine, Vehicle or Doser control module (ECU, VCS, DCU), the error below may be seen in DX3 when attempting to reprogram. This is typically the result of the VIN not being registered with the Hino Repro Server. This will require creation of an INF file via the DX3 and registering the file on the Hino Repro Server.
167-T2409-1
Service Bulletin/Repair Instructions
A brake pad mechanical wear indicator is now available as a service part. During the periodic brake pad inspection or when servicing the front or rear brakes, if the outer brake pads are not equipped with a mechanical wear indicator, mechanical wear indicator installation is recommended at the time of inspection or service. Two wear indicators are needed per axle, four per vehicle.
167-T2406-1
Service Bulletin/Repair Instructions
After connecting to a truck using DX3, it may be necessary to review or create a DX Diagnostic Report for review.
167-T2406-2
Service Bulletin/Repair Instructions
This article will provide dealership technicians with information on how to open a tech assist case and discuss what is required when opening a Tech Assist Case.
167-W2310-1
Service Bulletin/Repair Instructions
May exhibit an internal oil leak that could negatively impact operation of the Variable Nozzle and cause the MIL (malfunction Indicator Light) to illuminate.
167-T2305-2
Service Bulletin/Repair Instructions
Subject vehicles may experience a harsh shift condition with no DTC (Diagnostic Trouble Codes) set. If this condition is experienced, inspect the transmissions turbine speed sensor for proper operation.
167-T2301-7
Service Bulletin/Repair Instructions
RECOVERING THE DOSER CONTROL UNIT (DCU) AFTER A FAILED PROGRAMMING EVENT â DCU BLANK. TT-23-011
167-W2301-2
Service Bulletin/Repair Instructions
COE NITROGEN OXIDE (NOX) SENSOR â AAPE0
167-W2301-4
Service Bulletin/Repair Instructions
COE DIESEL PARTICULATE FILTER (DPF) â AASX0
167-T2211-5
Service Bulletin/Repair Instructions
The purpose of this procedure is to provide instructions in performing an injection quantity test on 2011 and newer Conventional or COE series trucks with DX3.
167-T2203-1
Service Bulletin/Repair Instructions
DIESEL NITROGEN OXIDE (NOX) SENSOR PART NUMBER CHANGE TECH TIP TT-22-004
167-B2106-1
Service Bulletin/Repair Instructions
BRAKE PEDAL KICK BACK/CLAIMED BOOSTER ENHANCEMENT PROGRAM AADD0-TECHASSIST CASE REQUIRED SERVICE ALERT NO: SA-21-003
167-E2010-1
Service Bulletin/Repair Instructions
May exhibit an internal oil leak that could negatively impact operation of the Variable Nozzle and cause the MIL (malfunction Indicator Light) to illuminate.
167-E2010-2
Service Bulletin/Repair Instructions
In certain conditions, the fuel pressure applied to the FCV (Fuel Cut Valve) during operation exceeds the valve opening force limit, this is because the design of the FCV may not have enough allowance for the pressure and timing of the fuel generated in the valve, causing the valve not to be opened temporarily.
167-E2010-6
Service Bulletin/Repair Instructions
Residual DEF inside the pump may freeze and crack the pump housing. In some case DEF may leak on the pump connector and cause a circuit failure. This failure will cause the MIL to illuminate.
167-E2010-3
Service Bulletin/Repair Instructions
May cause the MIL to illuminate due to the following: DEF quality misdetection, internal temp sensor failure, operating voltage misdetection, or failure of the internal power supply circuit capacitor.
167-R2010-1
Service Bulletin/Repair Instructions
The seal structure of the dosing valve of the DEF Injector may be inadequate. With an inadequate seal, water or DEF may enter inside the coil of dosing valve from the seal, causing the DEF Injector to be inoperative. For vehicles built before the improved part was introduced into production, the DEF injector will be replaced with an improved one.
167-E1907-01
Service Bulletin/Repair Instructions
Oil leak from the input rod: During the machining process of the input rod cylinder, a sharp protrusion was produced. This sharp protrusion scratched the packing seal, resulting in an oil leak. Brake pedal kickback: In some cases, the brake pedal may be depressed beyond the operational limit which will create scars on the end of the plunger inside the booster. The scars cause the oil passage to narrow, resulting in unbalanced pressure. The unbalanced pressure causes a kickback sensation to occur. The kickback sensation does not affect the braking function but could lead to the customer contacting the dealer about a possible brake malfunction.
SB-16-016
Service Bulletin/Repair Instructions
Cab Over Engine Trucks (155, 155h, 195, or 195h) Enhanced DCU (Dosing Control Unit) software has been released to address as the conditions.
SB-15-048
Service Bulletin/Repair Instructions
DPF SHIELD BR A CKET CORROSION - Subject vehicles may exhibit a broken DPF shield mounting bracket ddue to corrosion perforation. An enhanced DPF shield bra cket made from stainless steel is now available to prevent this condition from recurring. Cab over Engine trucks 1955, 195h
TT-14-031
Service Bulletin/Repair Instructions
The tech tip below is to reset the speedometer after a tire size change or rear end gear change.
SB-15-045
Service Bulletin/Repair Instructions
Hino Conventional Trucks (238, 258, 268 or 338) equipped with a snow plow specification stationary grille. Fiberglass repair methods have been made available to address hood cra ck concerns. In the event a subject vehicle experiences cra cking of the hood near the hinges, this rekpair procedure should be used to address this condition. While these repair methods may be effective at repairing ahood that was damaged from impact, impact damage repair is not warrantable. Hoods should be inspected for impact damage prior to performing this procedure.
SB-15-035
Service Bulletin/Repair Instructions
COE Seat frame bolt loose or missing, Cab over Engine Trucks (195, 195h)
TT-15-025
Service Bulletin/Repair Instructions
DEF PUMP DIAGNOSTIC TIPS - HINO Conventional Trucks equipped with a J08 engine and 2013MY - 2016MY Hino COE Trucks equipped with a J05 engine.
SB-15-031
Service Bulletin/Repair Instructions
Conventional Trucks (238, 258, 268 or 338) and COE (Cab over Engine) Trucks (195, 195h) Foreign debris in the DEF (Diesel Exhaust Fluid) tank may cause the SCR (Select Calalyst Reduction) System to malfunction. This can result in DTC's (Diagnostic Trouble Codes) P20E8 or P20E9 - DEF Pressure abnormality. An inlet strainer for the DEF tank has been made available to prevent foreign material froim entering the DEF tank.
SB-15-034
Service Bulletin/Repair Instructions
Correction of workshop manual for Hino COE Revision of Troubleshooting Procedure fot the DTC P0A84 Relevant Model: 2014-15 Hino 155, 195, 155h, 195h.
SB-15-030
Service Bulletin/Repair Instructions
DTC U02A2 DEF sensor communication error. On subject vehicles, the MIL (Malfunction Indicator Lamp) may illuminate with DTC (Diagnostic Trouble Code) U02A2 stored in the engine ECU. This may be due to a malfunction of the DEF (Diese Exhaust Fluidf) tank sensor asslembly. Perform the diagnostic prolcedure for DT C U02A2 as outlined by the Workshop Manual (DEF SCR Section for Conventional Vehicles, Engine Troiubleshooting Section for COE Vehicles). If the diagnostic procedure leads to DEF tank sensor replacement, a more robust DEF tank sensor has been made available. Conventional Trucks (238, 258, 268 and 338) and COE (Cab Over Engine) Trucks (195, 195h).
SB-15-028
Service Bulletin/Repair Instructions
Suspension - A COE if equipped with a severe duty body application may experience excessive body roll or poor handling at highway speeds. This TSB (Technical Service Bulletin) outlines an inspection procedure highlighting approved body installation guidelines and the need for a general suspension inspection. Also included are two repair procedures where the front and rear suspension can be modified to reduce the amount of body roll and stiffen the ride quality. 195, 195h COE Stability upgrade.
TT-15-018
Service Bulletin/Repair Instructions
2012-16 COE cab hardness chafe. 195, 195h trucks
SB-15-016
Service Bulletin/Repair Instructions
New parts are available to prevent repeat exhaust manifold stud failures on the J05 engine. This bulletin provides instructions for installing longer manifold studs at the #4 cylinder location.
SB-15-011
Service Bulletin/Repair Instructions
COE Steering Gear Adjustment Procedure. The following TSB (Technical Service Bulletin) outlines the inspection method for steering wheel free play and the adjustment procedure of the steering gear. 2012-2015 Hino COE ( Cab Over Engine) trucks that were assembled at the Hamura, Japan Assembly plant.
TT-14-033
Service Bulletin/Repair Instructions
When replacing an engine block with service part no., 11401E0380 there is potential that 2 rear oil passage plugs may be missing in the rear of the replacement engine block. In the event your replacement engine block does not have these 2 oil passage plugs, you will need to install them before proceeding
SA-14-026
Service Bulletin/Repair Instructions
The broken hood grille procedure (SB-14-020) has been revised to reuse the grille nuts (SZ17906009) if possible. There is a limited quantity of the nuts available and it has been confirmed that the nuts are reusable. The revised procedure has been posted on HinoNet. Please see the picture below on which area of the procedure has been updated.
TT-14-026
Service Bulletin/Repair Instructions
When diagnosing a concern with the SCR system, the technician may notice crystallized DEF (diesel exhaust fluid) on the tip of the DEF injector. Crystallized DEF on the tip of the injector is a normal occurrence and does not indicate that the injector nozzle is clogged. The crystallization will dissolve when the injector is activated. Do not replace the DEF injector for the crystallization alone. Please follow Workshop Manual diagnostics to diagnose the specific condition or DTC on the vehicle.
TT-14-032
Service Bulletin/Repair Instructions
During diagnosis of the exhaust aftertreatment system, the technician may find that the combustion chamber igniter plugs are covered in soot or appear to be excessively worn. If the igniters are dirty or have some wear, this alone does not justify replacement. No service of the igniters is recommended unless an issue with the spark between them is confirmed during a spark test. If, during the spark test the arc between the igniters does not function properly, it is recommended to first clean the igniters, and then check the air gap using the following procedure prior to replacement of the igniters.
TT-14-030
Service Bulletin/Repair Instructions
The following procedure is for resetting the engine hour meter display showing total running time, driving time, and idling time of the vehicle in minutes and seconds. Total shows the time from engine start to engine stop. Drive or Idle shows the time of total driving time and total engine idling time. When the hour meter reaches 999.9 it will stop. The display can be reset to 0 to continue tracking engine hours for maintenance purposes by following the procedure below.
TT-14-027
Service Bulletin/Repair Instructions
When replacing an audio unit for a CD player issue, the CD may not eject properly from the unit. DO NOT disassemble the audio unit to remove the CD. This will void any applicable warranty coverage for this repair. If the customer wishes to have the CD returned, please complete the following form indicating where the customer would like the CD shipped. Include this form with the warranty returned part.
TT-14-023
Service Bulletin/Repair Instructions
Some 2013MY-2017MY COE units may illuminate the ABS light and store DTC C1425 after the aftermarket LED tail lamps are installed. In addition, the turn signals may flash quicker than normal and the cruise control will be disabled.
TT-14-019
Service Bulletin/Repair Instructions
The following information applies to the installation of a customer supplied and commercially available electric trailer brake controller for all 2008MY-2015MY Hino trucks. This application only applies to brake controllers which operate using a 12-volt input signal from the chassis when the brakes are applied.
TT-14-020
Service Bulletin/Repair Instructions
The following information applies to the installation of a customer supplied and commercially available electric trailer brake controller for all 2012MY-2017 MY Hino trucks. This application only applies to brake controllers which operate using a 12-volt input signal from the chassis when the brakes are applied.
TT-14-015
Service Bulletin/Repair Instructions
DEF PUMP BACKFLOW CONNECTOR CHANGE