2010 2500 Multiple CELs: U0001, U0100, U0121, U0137, U0141

[JoshuaJobe]

Good afternoon!

Are there any Techs out there that are familiar with the subject?. I've been dealing with the subject referenced codes for about 5 years now. All this time, I was pretty certain it was the TIPM, more than likely because of all the reports out there about problems some folks have been having, so it's easier to put the blame on it. Most of the time I would get a U0141, U0001, U0121. Any time this would happen, Initializing Communication would be displayed on the H&S Black Maxx and I wouldn't be able to start the truck. Cycling the keyfob on and off multiple times seems to work to "wake" everything up...after about 10-20 minutes of cycling the key, erase the DTCs and start the truck and go.

Initially, when the problem first started happening, the Cluster would go haywire with bells and whistles after getting on the road and the engine brake would turn off, and cruise control would disengage.

I typically see this problem when it starts getting hot and really hot outside and again when it cools off during the winter, then no issues for quite a while.

A few years ago I bought the AutoEnginuity Proline VCI Scan Tool and the FSM on CD from Tech Authority to help with troubleshooting, so I have quite a few reports documenting the problems. However, the downside is that I was never home when this would happen, so once the computers woke up, the truck would start just fine and once the codes were cleared, they wouldn't return for further diagnostics. Sometimes I would wait until I got home to hook up the Scan Tool to record the DTCs and follow the steps in the FSM...which would direct you to record and erase. Once erased, they wouldn't come back, so the condition is considered intermittent.

Yesterday, just as I was about to leave for work, the gremlin resurfaced, this time even worse then any time before, so I got out the scan tool. First indication is that it wouldn't pull the VIN and auto-populate the year, make, and model. I had to select those manually. Once I was to the screen to select a module to run diagnostics, it wouldn't let me run Enhanced Diagnostics listed under the "Engine" section. I was able to select the TIPM and run diagnostics and pull codes. This makes sense as the TIPM is the place where all or most faults are stored.

First report ran on the TIPM only gave the following codes pulled from all reporting modules:

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Anti-Lock Brake System

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U0141 Lost Communication With Body Control Module 'A'

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U0102 Lost Communication with Transfer Case Control Module

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C2202 Original VIN Mismatch / Missing

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U0100 Lost Communication With ECM / PCM A

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Tire Pressure Monitor

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U0002-00 CAN C Bus Off Performance

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U0141-00 Lost Communication With IPM

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U0100-00 Lost Communication With ECM / PCM

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C1501-96 Tire Pressure Sensor 1 - Component Internal Failure

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C1504-96 Tire Pressure Sensor 4 - Component Internal Failure

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C0077-00 Low Tire Pressure

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Totally Integrated Power Module

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U0001 High Speed CAN Communication Bus

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U0137 Lost Communication With Trailer Brake Control Module

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U0102 Lost Communication with Transfer Case Control Module

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U0100 Lost Communication With ECM / PCM A

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U0163 Lost Communication With Navigation Control Module

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Wireless Control Module

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U0146 Lost Communication With Gateway 'A'

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U1197 Security Seed Response Not Received From ECM / PCM

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U0100 Lost Communication With ECM / PCM A

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Following the Factory Service Manual:

The codes in ABS send you over to TIPM to perform the diagnostics procedures for those codes.

Starting with U0141, if that is Active on the Bus and there are TIPM Configuration, CAN C Hardware Electrical, VIN Missing/Mismatch, battery or ignition DTCs, it directs you to troubleshoot those first.

So, I followed the procedures for U0001:

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Possible Causes


(D65) OR (D52) CAN C BUS (+) CIRCUIT SHORTED TO GROUND


(D64) OR (D51) CAN C BUS (-) CIRCUIT SHORTED TO GROUND


(D65) OR (D52) CAN C BUS (+) CIRCUIT SHORTED TO VOLTAGE


(D64) OR (D51) CAN C BUS (-) CIRCUIT SHORTED TO VOLTAGE


(D65) OR (D52) CAN C BUS (+) CIRCUIT SHORTED TO THE (D64) OR (D51) CAN C BUS (-) CIRCUIT


ANTI-LOCK BRAKE MODULE


POWERTRAIN CONTROL MODULE (PCM)


OCCUPANT RESTRAINT CONTROLLER (ORC)


DRIVETRAIN CONTROL MODULE (DTCM)


TIRE PRESSURE MONITORING (TPM) MODULE


FINAL DRIVE CONTROL MODULE (FDCM)


WIRELESS IGNITION NODE (WIN)


STEERING ANGLE SENSOR (SAS)


INTEGRATED TRAILER BRAKE MODULE (ITBM)


TOTALLY INTEGRATED POWER MODULE (TIPM)

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Troubleshooting Steps (I underlined and changed the text to Red where it was applicable):

1.TEST FOR INTERMITTENT CONDITION

1.	Turn the ignition on.

2.	With the scan tool, record and erase TIPM DTCs.

3.	Cycle the ignition from on to off three times.

4.	Turn the ignition on.

5.	With the scan tool, read active TIPM DTCs.

Does the scan tool display this DTC as active?

Yes

1. Go To 2

No

1. Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.

2.ANTILOCK BRAKE MODULE - INTERNAL SHORT

1.	Turn the ignition off.

2.	Disconnect the Antilock Brake Module harness connector.

3.	Turn the ignition on.

4.	With the scan tool, record and erase TIPM DTCs.

5.	Cycle the ignition from on to off three times.

6.	Turn the ignition on.

7.	With the scan tool, read active TIPM DTCs.

Does the scan tool display this DTC as active?

Yes

1. Go To 3

No

1. Inspect the wiring and connectors for damage or shorted circuits. If OK, replace the Antilock Brake Module in accordance with the Service Information.
2. Perform the ABS VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Antilock Brake (ABS) - Standard Procedure).

3.POWERTRAIN CONTROL MODULE (PCM) - INTERNAL SHORT

1.	Turn the ignition off.

2.	Disconnect the PCM C1 or PCM C2 (6.7L) harness connector.

3.	Turn the ignition on.

4.	With the scan tool, record and erase TIPM DTCs.

5.	Cycle the ignition from on to off three times.

6.	Turn the ignition on.

7.	With the scan tool, read active TIPM DTCs.

Does the scan tool display this DTC as active?

Yes

1. Go To 4

No

1. Inspect the wiring and connectors for damage or shorted circuits. If OK, replace and program the PCM in accordance with the Service Information.
2. Perform the appropriate POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

At step 3 for the PCM, the code went away and the following codes were reported (with the ABS and PCM disconnected).

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Totally Integrated Power Module

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U0163 Lost Communication With Navigation Control Module

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U0137 Lost Communication With Trailer Brake Control Module

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U0121 Lost Communication With Anti-Lock Brake System (ABS) Control Module

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U0100 Lost Communication With ECM / PCM A

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U0163 doesn't make sense and is nowhere to be found in any of the related modules/DTCs (including the Radio). The rest make sense as all of those modules were disconnected. All of the wires appear to be okay and once I reconnected the connector on the PCM, the code came back. I still wasn't able to run "Enhanced" diagnostics on the PCM, but ran "Generic" and it came back with the following codes:

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Generic Powertrain

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P2509 ECM / PCM Power Input Signal Intermittent

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U0121 Lost Communication With Anti-Lock Brake System (ABS) Control Module

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P0381 Glow Plug/Heater Indicator Circuit

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U0001 High Speed CAN Communication Bus

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U0141 Lost Communication With Body Control Module 'A'

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Enhanced Powertrain

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No response from module

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Occupant Restraint Controller

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U0141-00 Lost Communication With IPM

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Tire Pressure Monitor

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U0141-00 Lost Communication With IPM

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C0077-00 Low Tire Pressure

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U0100-00 Lost Communication With ECM / PCM

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U0121-00 Lost Communication With Anti-Lock Brake Module

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Totally Integrated Power Module

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U0001 High Speed CAN Communication Bus

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U0137 Lost Communication With Trailer Brake Control Module

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U0163 Lost Communication With Navigation Control Module

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Wireless Control Module

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U0146 Lost Communication With Gateway 'A'

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U1197 Security Seed Response Not Received From ECM / PCM

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U0121 Lost Communication With Anti-Lock Brake System (ABS) Control Module

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U0100 Lost Communication With ECM / PCM A

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At this point, after clearing ALL DTCs, the PCM came back online and I was able to get the truck started. No problems since then.

With all of that being said, could the PCM actually be the culprit IAW the procedures above? Last year, when I was having these problems, I decided to order a remanufactured TIPM, but after waiting a month for it, I cancelled the order as the problems went away and I second guessed myself that maybe the PCM is the problem. The truck was problem free until June when the heat hit here in Nevada and it's been reoccurring since then.

I hate to just throw money at it and it be something totally unrelated. I appreciate any and all help with this.

 

[LNaugle]

I am having similar problems with a 2013 right now. I know this is caused by a short somewhere. Finding it is the challenge. I had a 2015 Ecodiesel blow up with codes, found a spot in the main dash harness that trips them. Have yet to pull it and open it up.

 

[LNaugle]

I am having similar problems with a 2013 right now. I know this is caused by a short somewhere. Finding it is the challenge. I had a 2015 Ecodiesel blow up with codes, found a spot in the main dash harness that trips them. Have yet to pull it and open it up.

 

[sag2]

You most likely have a poor connection at one of the intermediate connectors. You will need to locate every connector with CAN C and pull it apart. Look at the wire crimp of the terminals of both sides of the connector and make sure they don't push out when connected again. It could be the connector at any module, but far more likely an intermediate.

 

[JoshuaJobe]

So a wiring or connector issue. I can dig into that. A whole lot cheaper than an ECM!

sag2, what do you mean by intermediate? Where the harness may split off?

Thanks for the reply guys!

 

[sag2]

This should help. Ignore Diagnostic CAN C as that is only to talk to the scan tool. You are looking for C130 and C210. The locations are on the file name.


View attachment CAN-C-BUS-SYSTEM.pdfView attachment C130 inline, to left of booster from under hood.pdfView attachment C210 inline, to right of booster from under hood.pdf

 

[JoshuaJobe]

Thank you for the files! I checked both connectors, although, I couldn't find where C210 was, then I recalled I had a PDF hidden somewhere that shows the locations of the connectors. According to that diagram, C210, I believe as viewed from the front of the vehicle, is actually in the cab, just forward of the emergency brake (right of booster)--would that be correct?

I disconnected both connectors and all male/female pins look good. None of the pins appeared to be pushing out. After I disconnected C130 from under the hood, I turned the key on and got the EXACT same issues I described in the original post. I put that connector back together, cleared the codes, then yanked and pulled on the wiring harness in various locations and couldn't get any codes to throw. I couldn't get to the back of the harness, due to time mainly, as it dips behind the engine.

More wire digging as I get time. Since C130 goes to the ECM, I'll disconnect the connectors and try to ohm check the wires between the two. Do you know which connector on the ECM is C2 and is the drivetrain control module actually part of the ECM?

Thank you again for all the help!