Remote Start Troubleshooting

mikez71 said:

Interesting, the autosync configurator lists these DRL options..

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Either way, glad I don't have Canda spec, eh?

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ya it's a interesting tid-bit for those northerners that want to be rebels

Looking at ebay, the sellers sell VIN programmed units, 07-14. So probably do just need VIN programmed.

mikez71 said:

Looking at ebay, the sellers sell VIN programmed units, 07-14. So probably do just need VIN programmed.

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I replaced mine once because the backlights were burned out, it was plug n play, but ya I am sure it's just a calibration file they used on the canadian ones

Oops, I meant Dave09's X-fer case module probably needs VIN programmed.

mikez71 said:

"You will need a TCM OS that's from the late side of the CAN comms breakpoint, your ECM is the late 127lb IFR variety. It won't talk to any TCM OS that was used with the earlier 63lb limit ECMs. Generally the breakpoint is 2009 for the early/late switch, but there is some bleedover depending on platform; 2008 anything is definitely an early and 2010 anything is definitely a late, but 2009 could be either."

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What does all this mean?

The single speed transfer case was introduced in 2010 MY. So the 2009s used the MP3023 2-speed case. The 2007-2008s were still using the New Process transfer case.

swathdiver said:

What does all this mean?

The single speed transfer case was introduced in 2010 MY. So the 2009s used the MP3023 2-speed case. The 2007-2008s were still using the New Process transfer case.

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That was regarding someone trying to get a 09 ECM to talk to an earlier transmission.
I thought since maybe there was a change in comms, it might affect his xfer case module, but apparently not. so NVM!

mikez71 said:

That was regarding someone trying to get a 09 ECM to talk to an earlier transmission.
I thought since maybe there was a change in comms, it might affect his xfer case module, but apparently not. so NVM!

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Thanks for the clarification. I learned something new today!

Does your aftermarket radio tie in to any of your trucks diagnostics to display codes or vehicle engine data?

If the shop tied into a data / canbus line it may be showing as a radio fault.

Doubeleive said:

IF there is one the tech2 should be able to see it after a failed autostart

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Yeah, I played around with the Tech 2 for a while last night, I think you were right in capitalizing the IF - I'm not seeing a code. The only evidence of a fault is the one line that says "ECM Crank Abort = True" So trying to disable the fault in the tune may be a dead-end?

mikez71 said:

What year transfer case module did you replace yours with? I read something about about a change in protocol around '09.
Here is the info that made me think of you, from 'blindsquirrel' on hptuners forum.. Not sure if it applies to transfer case modules..

"You will need a TCM OS that's from the late side of the CAN comms breakpoint, your ECM is the late 127lb IFR variety. It won't talk to any TCM OS that was used with the earlier 63lb limit ECMs. Generally the breakpoint is 2009 for the early/late switch, but there is some bleedover depending on platform; 2008 anything is definitely an early and 2010 anything is definitely a late, but 2009 could be either."

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Hmmm, very interesting. I just looked in my ebay order history, and the listing didn't show donor vehicle specifics. It just said 2007-2014 Silverado. I know you and James were discussing the transfer case change around 2009, but maybe they used the same modules? If my module actually came from a 2009 or older could it still explain the issue?

mikez71 said:

Looking at ebay, the sellers sell VIN programmed units, 07-14. So probably do just need VIN programmed.

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I just looked at ebay and some sellers do offer VIN programming. Double the price of a non-programmed one. Theoretically I should be able to VIN program the module I have with my Tech 2 as a pass through and the $45 GM SPS subscription? I'm still wondering if I had a module that for sure came from 2010 or later if I'd need to worry about it.

petethepug said:

Does your aftermarket radio tie in to any of your trucks diagnostics to display codes or vehicle engine data?

If the shop tied into a data / canbus line it may be showing as a radio fault.

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No, I don't think so. I installed the radio myself and it doesn't show any vehicle diagnostics. I do get a DTC in the tech 2, though, since it says it lost comm with the factory radio. I don't think that's what you mean, though?

.. seen this calibration procedure for Dorman on ROCKAUTO

Different than OEM? no mention of VIN programming.
Same part number for a 09 tahoe vs 13 silverado.

I am GUESSING maybe bad module, OR need VIN programming like other GM modules?
(is the fuel pump module normally a VIN programmed part? but not the Dorman?)

Since there are no codes, I don't think it's anything a tuner can disable. (looking through the DTC's, most xfer case module codes are set to 'no error reported' except for loss of communication with transfer case module on the ECM side, which is 'MIL on second error'...