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2005 freightliner buisness class m3 with 3126 cat engine and…

Customer Question
2005 freightliner buisness class...

2005 freightliner buisness class m3 with 3126 cat engine and allison automatic trans. when turn switch on the dash cluster does nothing engine will turn over but wont start hooked up to scan tool it is not reading ecm or tcm has codes spn84 fmi 19 and spn 2003 fmi 19

Mechanic's Assistant: What's the make/model/year of your truck? Engine type?

2005 freightliner buisness clas m3 3126 cat

Submitted: 3 years ago.Category: Medium and Heavy Trucks
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Customer reply replied 3 years ago
i have tested all fuses and made sure power was coming out also checked have power to ecm also swaped ecm out and still same isuess. also had code spn 1550 fmi6 unpluged all ac stuff that code went awayi have changed out speed sensor on trans disconnected tcm did not change anythingtruck was running fine and just quit going down road and would not restart
Customer reply replied 3 years ago
vin# *****
Customer reply replied 3 years ago
any luck yet the estimatemated time was 8 min that was 1hr 15 min ago
Customer reply replied 3 years ago
is there anybody on the other end of this i have been waiting sence yesterday
Customer reply replied 3 years ago
hello i paid to get some help with this truck and no one has responded sense i started are yall going to respond
Answered in 4 days by:
2/12/2019
Technician: Ulyana-mod,
 replied 3 years ago
Ulyana-mod
Category: Medium and Heavy Trucks
Satisfied Customers: 9
Verified
Hello, Welcome to JustAnswer. My name is ***** ***** I am the category moderator. I apologize for the wait. I wanted to reach out to see if you still need assistance with your question? Please use the reply box below to let me know if you'd like to continue or cancel. Thank you! Ulyana~Moderator
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Technician: roybelding, Shop Foreman Freightliner trucks replied 3 years ago
roybelding
roybelding, Shop Foreman Freightliner trucks
Category: Medium and Heavy Trucks
Satisfied Customers: 12,915
Experience: Shop Froeman for Freightliner Trucks
Verified

Hello, my name is ***** ***** sorry to see you are having issues. Give me a couple of minutes to review your issue and I will assist you

Roy

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Technician: roybelding, Shop Foreman Freightliner trucks replied 3 years ago

Good afternoon

I posted below the code and the checks you ned to do for the issue with the sensors.

Roy

44.5 SPN 84/FMI 19 – EPA10 - GHG14

J1939 Wheel-based Vehicle Speed Sensor Signal from Source #1, #2, or #3 is Erratic

SPN 84/FMI 19

DescriptionVehicle Speed Sensor Erratic

Monitored ParameterVehicle Speed Sensor (VSS)

Typical Enabling ConditionsRPM greater than 1500, Torque Demand On

Monitor SequenceNone

Execution FrequencyContinuous when enabling conditions met

Typical Duration10 Seconds

Dash LampsMIL

Engine Reaction

VerificationRPM greater than 1500, Torque Demand On

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  1. Check for multiple codes:
    1. If Common Powertrain Controller (CPC) SPN 168/FMI 0/14/18 (battery voltage) are present, troubleshoot these first.
    2. If Motor Control Module (MCM) SPN 625/FMI 9 is present, repair the Controller Area Network (CAN) line faults.
    3. If only a "J1939 Error" fault is present, Go to step 2.
  2. Has the CPC been recently reprogrammed?
    1. Yes; check the proper configuration of the CPC.
    2. No; connect ServiceLink to determine which modules are configured for the vehicle and their communication status. Once this is done, follow the appropriate module communication troubleshooting procedures for the affected module.

Printed Tue Feb 12 2019 14:16:48 GMT-0500 (Eastern Standard Time)

Copyright © 2019 by Detroit Diesel Corporation. All rights reserved.

Last updated on 07-25-2014

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Customer reply replied 3 years ago
still need help
Technician: roybelding, Shop Foreman Freightliner trucks replied 3 years ago

What have you done for the code> did you follow the flow chart? What are your results?

Roy

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roybelding
roybelding
roybelding, Shop Foreman Freightliner trucks
Category: Medium and Heavy Trucks
Satisfied Customers: 12,915
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Experience: Shop Froeman for Freightliner Trucks

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