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Try to find cts output from pcm, I have 12.7 02 freightliner

Customer Question
columbia...
Try to find cts output from pcm, I have 12.7 02 freightliner columbia
Submitted: 1 year ago.Category: Medium and Heavy Trucks
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Answered in 1 hour by:
10/23/2016
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago
roybelding
roybelding, Shop Foreman Freightliner trucks
Category: Medium and Heavy Trucks
Satisfied Customers: 6,719
Experience: Shop Froeman for Freightliner Trucks
Verified

good afternoon my name is ***** ***** I will assist

are you looking for voltage readings or temp readings??? do you have the laptop program for the old freightliner???

Roy

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Customer reply replied 1 year ago
No I do not have a laptop available at the moment. I am trying to adapt my ddec 2 into my 02 freightliner without the ecm upgrade, but can't figure out the cts pinout going into the cab.
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

are you looking for voltage readings or temp readings???

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Customer reply replied 1 year ago
Temp reading, thank you .
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

ok, if you want the temp, you will have to update the software to view it. any freightliner dealer can do this for you.

Roy

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Customer reply replied 1 year ago
there is no way to get the gauge to work without an upgrade.
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

was there one from the factory??

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Customer reply replied 1 year ago
in my 02 freightliner but no pinout on the ddec 2 for the signal wire for the temperature
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

ok, so the gauge does not work.

did you check the wires from the sensor???

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Customer reply replied 1 year ago
Can't find the pinout for sensor
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

I am trying to find out what you are looking for here. do you need the voltages???

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Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

last 6 of the vin???

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Customer reply replied 1 year ago
that's a ddec 3,4, and 5 harness but not a ddec 2. That's why I was trying to bypass ecm pinout and tie into truck harness.
Customer reply replied 1 year ago
J49201 is the vin
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

sorry, freightliner looks like they eliminated the diagrams for ddec 2

I will opt out and see if one of our other truck techs can help

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Technician: Jeremy, Certified Truck/Bus Technician replied 1 year ago
Jeremy
Jeremy, Certified Truck/Bus Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 3,484
Experience: ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician
Verified

My name is ***** ***** I will assist you with your question today.

I'm an independent contractor and I don't get paid until a rating has been made.

We can go back and forth as needed to help resolve the issue you are having. Follow ups are free after ratings, so rate in confidence!

May I ask why you are trying to put a DDEC II ECM onto a DDEC IV vehicle? Did you change the engine or something?

CLICK HERE or CLICK HERE or CLICK HERE for this is all the resources I have on the DDEC II wiring. Couple of these are for the Peterbilt, but they are the only ones that list a diagram for the DDECII still. No one else does. Even the manual section I posted is from an old cab over manual I have.

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You want a 5 star service and I want to provide a 5 star service. Please consider that I don't know your skill level as well as I can't see, touch, smell, hear the vehicle/machine in question. Please provide as much detail as possible and I will provide as much back.

Once an answer is provided, you should see a rating screen. Please rate my personal service to you. The ratings are my personal feedback, they are not the site feedback.

Thank you for allowing me to assist you through Just Answer!

Jeremy

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Customer reply replied 1 year ago
Hi, and yes I had a ddec2 engine I put into a ddec 4 vehicle. I'm some what knowledgeable in mechanical and electrical.
Customer reply replied 1 year ago
I have those wiring diagrams also,but i don't see how to configure the temperature sensor back into the cuicuit
Technician: Jeremy, Certified Truck/Bus Technician replied 1 year ago

I'm seriously confuse. You had a DDEC II engine in a Columbia? Columbia's didn't have DDEC II engines in them. They had DDEC IV engines.

DDEC II engines didn't use a temp gauge through the ECM the temp gauge was a analog gauge on the engine that wired direct to the gauge. That is why you don't see it on the DDEC II diagram. On the DEC IV diagram, you have a temp gauge that you sent the output from the gauge to it and it then told the temp gauge what the temps is doing through the CAN BUS.

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Customer reply replied 1 year ago
The ddec 2 was installed in the 02 frame. What I am wanting to know is what wire carry the signal to the gauge on a 02 freightliner columbia with a ddec 4 fire wall harness.
Technician: Jeremy, Certified Truck/Bus Technician replied 1 year ago

I understand now.

On the harness it will be a yellow wire that has a wire number of 133 printed on it. This is if you are on the 30 pin connector on the harness for the ECM.

On the truck side, it will be a orange wire with the number 115 printed on it. That is the harness that goes to the firewall.

CLICK HERE for the original OEM DDEC IV harness info.

CLICK HERE for the truck side of the harness.

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Customer reply replied 1 year ago
understand that point, but I need coolant temperature not level.
Technician: Jeremy, Certified Truck/Bus Technician replied 1 year ago

The info I provided was for temp, not level.

The temp on the DDEC II engine was analog and didn't run through the ECM. It was straight to the dash. On the DDEC IV, It runs throug hthe CAN BUS. You will need to run it direct.

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Customer reply replied 1 year ago
The orange wire 115 on the truck side cavity h3 is coolant level by the chart of pinouts
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Jeremy
Jeremy
Jeremy, Certified Truck/Bus Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 3,484
3,484 Satisfied Customers
Experience: ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician

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