2004 Trailblazer remote start

Using the Trilogic GMDL=BP with a Micro MASSTART 2001 as I normally do on newer GM Trucks.
2004 Trailblazer LT

My wiring checks out fine.

https://www.the12volt.com/installbay/forum_posts.asp?tid=39668

DIRECTWIRE™ WIRING INFORMATION - CHEVROLET / TRAILBLAZER / 2004 / Remote Start


12volts red (40A), RED / white (40A)   +   ignition harness
Starter yellow   +   ignition harness
Second Starter N/A       
Ignition pink   +   ignition harness
Second Ignition white   +   ignition harness
Third Ignition N/A       
Accessory orange   +   ignition harness
Second Accessory brown   +   ignition harness
Keysense lt. green   -   ign harn or BCM, tan plug, pin E3
Notes: The BCM is attached to the fuse box under the left rear seat.
Power Lock use Directed module 455G       
Notes: If Directed module 455G is not available, refer to DirectFax document 1053.
Power Unlock see power lock       
Lock Motor gray   5wi driver door module in door
Unlock Motor tan   5wi driver door module in door
Parking Lights+ brown   +   fuse box under left rear seat
Parking Lights- gray/black   -   switch or BCM, tan plug, pin E5


Etc....

The GMDL-BP is progrmed proerly and I have gone over it with Trilogic twice, Tried 2 different GMDL-BP's and 2 different Remote starts.

What I'm not getting is the thing to start, or the Keyless entry to work consistently.

The Ignitions 1&2 get 12v, the start gets 12v but nothing happens.

Am I missing a wire from the ignition switch?

I've connected to all the 10/12 ga wires from the switch under the column. Colors matched function listed above and at 12volts.com database.

How about your accesory connections....?

You NEED the brown accs. connected.

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I NEED the Brown accessory wire?

I was going to try that... I will have the truck back soon.

I Just didn't try that wire.

I power it as an ACC wire Correct? or as a 3rd Ignition?


Thanks for that Tip!

as a second acc

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Kevin Gerry
Certified Electronics Technician
MECP First Class Installer

Owner/Installer
Classic Car Audio
since 1979

  I just installed one in my 2003 Trailblazer, using the gmdl-bp,      From RS I hooked up  the six wires on column red /RED / wht   +  / YELLOW starter +/  whit+ acc1+/brown + acc2 to the RS relays

Use the blu& grn from Bp module  to connect to wires on RS for the door locks  shoud work fine then, you may also want to hook the panic wire from module into panic wire of RS  is up to you, I did this and it all works fine for me.

RFD

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RFD

KarTuneMan wrote:

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How about your accesory connections....?

You NEED the brown accs. connected.

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No you don't.

I've done 4 this week without brown.




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Shaughn Murley
Install Manager, Dealer Services
Visions Electronics
Red Deer, Alberta

Second that....

Did get a 2005 Avalanche that I had to power up the second accessory though.... for some reason the traction control system didn't like not seeing it powered. Kinda wierd... first GM I've had to power that up in a long time.

Gus


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Wherever I go, that is where I end up......

I didn't hit the brown wire on the Trailblazer either.  Been 10 months or so and have not seen it back either.

Are you saying it won't CRANK or it CRANKS but does not Start??
I use the GMDL-BP also.  I ususally tie the Brown ( Status ) wire into the THIN PINK wire on the Relay Pack on the START 2001
Did you do TACH??
How about Hood PIN?
Hardly have a problem with the 2001 other then Transmitter lights
This is how I Wire the START 2001 on the Trailblazer:

Constant 12 volts	RED (2)	IGNITION SWITCH HARNESS
Ignition 12 volts	PINK	IGNITION SWITCH HARNESS
Starter	YELLOW	IGNITION SWITCH HARNESS

Ignition #2	WHITE	IGNITION SWITCH HARNESS
Ignition #3	ORANGE	IGNITION SWITCH HARNESS
Accessory	BROWN	IGNITION SWITCH HARNESS

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MO

Don't Learn from Others Mistakes
You Might Be the One That Knows.

Ooooooh K

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The Trailblazer doesn't crank, It does get a crank signal from the Mas2001 and all the wires have continuity.

I haven't had this problem on FS Pick-ups.

did you cut the starter wire and do anti-grind?   is it possible you have the wires reversed?

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Kevin Gerry
Certified Electronics Technician
MECP First Class Installer

Owner/Installer
Classic Car Audio
since 1979

no, Didn't set it up for anti-grind.

I'm just wondering if there is a 2nd Start wire?
Because it has the annoying BCM controlled start system.

?? it has the regular GM starter wire, but with factory anti-grind....   nothing special about it...

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Kevin Gerry
Certified Electronics Technician
MECP First Class Installer

Owner/Installer
Classic Car Audio
since 1979

If ALL your Ignition wires are correct and If you checked the 2001 Starter Relay & the PURPLE wire up to the Yellow Factory Starter wire, and you probed the Yellow wire to confirm Start Voltage, then you either have the wrong Yellow wire or you have an issue with the ByPASS

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MO

Don't Learn from Others Mistakes
You Might Be the One That Knows.

I've had this problem before and talked with one of the tech guys at Trilogix and he's trying to tell me all these troubleshooting tips and Im like dude I've did EVERYTHING you've mentioned b/c I've did this for a long time now and am extremely technical and knowledgeable about 12volt electronics and especially car audio and starts,alarms, and keyless.  And then he finally admitted that it's rare but SOMETIMES the passlock 2 will not bypass through the data wire.  I knew it was possible but I just wanted to hear it from him.  Because I tried GMBP's and GMDL-BP's and nothing through DATA would bypass it.  We both came to the conclusion that it's just something weird about the car sometimes.  So if I were you double check everything and then resort to what I had to resort to and that was a bypass that interacts with the passlock wires themselves and you will have no problem.  You still use the GMDL-BP for locks and content security arm and disarm and rap shutdown and it works fine with a another bypass for the PASSLOCK II.  And I've never powered the Brown on a trailblazer either.  Well hope this helps sorry for the long reply!!!

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TechHead

AAARRGGHHH < I Have one of those Trailblazers you talked about ds1434!

I've only been doing this kind of work since 1988 so I was sure that I was doing something right.

I miss the good old days, a Resister and relay were bad enogh, Now its a bypass this and that.

this is why y'all should always keep a couple old 555L's in the shop as backups or spares... cause you never know when you'll get a gremlin vehicle and wish to hell you had one.... just covering passlock II i have in stock.... 555L, 556L, PLXR, PLJX, 457G, GMBP & XK01..... cause if one doesnt work i can quickly grab another and try that, not spend a day ripping my hair out ( i dont have any to spare).....  a 555L & 455G would have this vehicle done and gone from your shop in 30 minutes....

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Kevin Gerry
Certified Electronics Technician
MECP First Class Installer

Owner/Installer
Classic Car Audio
since 1979

I may have to invest in some of those 555 modules.

So did you ever get this fixed airandsound?