Viper 5701 Won’t Start Without Key in Ignition, 2005 GMC Sierra

Hi Everyone. I installed my Viper 5701 remote start kit with XK09 module and DLPKGM firmware back in 2011 with the help of this forum (see link to original posts below)! Well my remote start has been working fine until today. My remotes are in pretty bad shape. Both battery covers have now broken off my two remotes and need replacing and finally this morning when I tried remote starting my truck, the lights inside the cab turned on but the vehicle would not start. I tried troubleshooting this afternoon with a second remote and same results. I can lock and unlock the doors just fine with the remotes too so pairing shouldn't be an issue. While trying to remote start the truck from inside the vehicle, I noticed that the heater blower will turn on (basically meaning the "key" has been turned to the "on" position), it sits for a second but doesn't crank. Instead, the unit turns off the relay and tries to start the truck another 2 times. To me it seems like the XK09 isn't giving the proper signal to the 5701 with my programmed key information. I check the XK09 and when I try remote starting the vehicle, it flashes about once per second during the 3 attempts. I tried unplugging the XK09 and also reprogramming the XK09 but the vehicle still will not start. To further investigate, I put my key in the ignition, turn it to the "on" position, and then hit the remote start button on my remote and the truck started! Can someone provide any additional troubleshooting steps? Do you think it is Viper related or the XK09 module? Or possibly a bad/broken wire somewhere in the mix? I've been spoiled with my remote start and actually had to scrape ice off my vehicle this morning. Brought back memories from 9 years ago :-) Original post: https://www.the12volt.com/installbay/forum_posts.asp?tid=126516&tpn=1 Thanks for the help!

Any thoughts anyone?

Is it possible to post the XK09 w/DLPKGM firmware install guide? Directed has restricted access to that info.... Any "Security" type lights on the instrument cluster during an unsuccessful R/S attempt? Have you tried the Viper Shutdown Diagnostics? It's strange that it tries 3 times without ever actually cranking the starter motor.Soldering is fun!

Thank you for the reply and sorry for the delayed response. Link to the installation guide is below. https://directechs.blob.core.windows.net/documents/xk09-dlpkgm_en_ig_vm20120511.pdf There are no security lights on the vehicles instrument cluster. I didn't realize the system has shutdown diagnostics. What an awesome feature. I found the shutdown diagnostics at the below link and will try that out when I have a chance. https://www.manualslib.com/manual/803366/Directed-Electronics-Viper-5701.html?page=9 Thank you very much for your help.

Did you check the Viper 5701 fuses? There are four +12V power input wires, thin Red, thick Red, Red/Black and Red/White, each with a fuse. It seems that possibly the Vipers Starter or IGN1 wire is not outputting +12V during a R/S attempt. You mentioned that the heater fan comes on. Most likely its the IGN1 fuse because with the key set to ON ( which powers IGN1, IGN2, ACC1 and ACC2 ), the R/S cranks and starts.Soldering is fun!

I had a little bit of time to run diagnostics today. -all fuses are good and functioning properly. -The XK09 seems to be functioning as I can start my truck with a chipless key (regular spare key for getting inside the truck but won't normally start the vehicle). -My valet remote doesn't appear to be lightening up so I cannot use it to pull any diagnostics. Ironically I touched my test light to one of the pins on the valet remote by accident and the LED turned on so the LED isn't burned out so something else is going on here. -I noticed that when trying to R/S the truck, the instrument cluster turns on but only in accessory mode. In other words, it looks the same as when I put the key in and turn to "acc". When trying to R/S, the instrument panel never never shows the odometer or does any of the normal system health checks that are done when a key is inserted and turned to the "on" position. I'm guessing this is the problem. H3 10-pin Pink - Ignition 1 pink wire RED / White – 12V Constant Orange - Hooked to Accessory 1 orange Violet - Car Side of starter wire Yellow Green – Ignition side of starter wire Yellow Red - 12V Constant Pink/white - Ignition2 White wire RED / black - 12v Constant Any suggestions as to which wire I need to check? What is the difference between ignition side of starter and car side of starter? Also, what does ignition 2 represent? I am guessing one of the wire connections broke from when I put this together 10 years ago. Thanks!

-I noticed that when trying to R/S the truck, the instrument cluster turns on but only in accessory mode. In other words, it looks the same as when I put the key in and turn to "acc". When trying to R/S, the instrument panel never never shows the odometer or does any of the normal system health checks that are done when a key is inserted and turned to the "on" position. I'm guessing this is the problem. This pretty much indicates that the Viper is not energizing the vehicles Ignition system. The 2005 Sierra has two Ignition wires, one Pink and the other White. The White one is primarily for the Transmission system and wouldn't prevent the instrument cluster from lighting up, etc. While everyone has a different approach to troubleshooting, Here are my thoughts. Were you able to get any info from Viper Shutdown Diagnostics? First, try a reseat on the Vipers 10 Pin Plug. Not too likely but high current over many years can fatigue the spade lug contacts. Next would be to see if PitStop mode works. This test should fail if the Viper is not able to output +12V on certain wires, like the Pink IGN1 wire. If all the fuses are good, check for +12V right at the 10 Pin plug Red/x wire pins. This will verify that +12V is getting into the Viper. The normal R/S sequence is for the Viper to output power on both Ignition wires ( Pink and Pink/White* ) and the Orange Accessory wire first for about a second. It might take a few R/S attempts to check this with one DMM. I suspect that the Pink wire is not outputting +12V. Additionally, you should check this output at the Viper 10 Pin Plug and then again at the vehicle wire it's connected to under the dash. It is possible to go the other way, i.e., use the key to turn the ignition switch to ON and check for +12V at the Viper 10 pin plug. All wires should have +12V except the Violet and Green Starter wires. This would only test for a connection and not the Viper's ability to output +12V on any of the wires. It isn't a test of current carrying ability, either. * I'm assuming that the Viper Pink/White wire is at its' default setting of IGN2 and being used for the Sierras' White IGN2 wire. Depending on the test results, it could be a bad fuse, bad fuse holder, bad wire connection or bad Viper internal relay.Soldering is fun!

Thank you all for the help yet again. I checked all of the voltages at the viper module and everything check out okay and all relays were functioning properly. I removed the H3 connector and tested all of the wires using the vehicles ignition. Turns out the pink wire (as you all eluded to) was not functioning. I took apart the dash and found the connection to the factory pink wire to be intermittent. When I removed all of the electrical tape and jiggled the connection, I was able to get the vehicle to start. I'll finish re-terminating the wires tomorrow and get it all buttoned back up. One thing that I found concerning is that I can start the truck with a regular, non-chipped key. I guess I've never tried this before. I would think that the Xk09 module would only provide this chip code when using the remote start but evidently it is providing it all the time. Is this normal? I very much appreciate everyone's time. You save me many hours of hunting down this bad connection.

Good to hear that you found the issue. If these ignition wire connections weren't soldered, now might be a good time to check and solder all of them. As for your concerns about the truck starting with a plain metal hardware store key, this is normal. Your truck has the Passlock2 immobilizer system. There is no transponder chip in the key. The Passlock2 system uses a resistor inside of the ignition switch. The XK09 bypass module does learn and bypass the Passlock2 during a remote start. There are plenty of articles on the WEB about Passlock2 and it's predecessors, VATS and Passlock1, that make for some interesting reading.Soldering is fun!