viper 5900 remote start problem

Hi, having issues w/ a Viper 5900 remote start in my 2004 Grand Prix. The alarm, triggers, sensors, lights, etc, all work fine. The problem is the RS sequence. When I RS the vehicle the ignition & accessory come on but no power is sent to the starter wire, hence no crank. I know this b/c I tested the module starter wire while triggering the sequence. I know the wire is relay driven and it appears the relay is working properly. Does the module power the starter wire? I read in a previous post that the starter wire (pruple) is not need.

Can my bypass be stopping current from my alarm module?? I have a common ground for everything including the park/neutral as indictaed by DEI. My bypass module is a PKU-GM that I assume is correctly connected. I programed it as stated in the instructions and I can hear the relay turn on that powers it.

I did not hookup the starter disable so the starter wire was not cut leaving a key side and starter side. I only have the modules starter side wire connected. I spliced into the starter at the BCM, is this ok or should I try somewhere else?

I checked the obvious, fuses, connections, relays, good ground and power supply. I thought it may be one of the modules wires that need to see ground (like a park/neutral switch) or GWR wire triggering the bypass relay but those were checked and double checked and all seem to be working fine.

Any ideas would be appreciated seeing as my car looks like someone stole it and tore half the dash off currently. I refuse to reassemble and admit failure.

Apperenly this forum does not like MS word. Here is an easier to read format. Same as above.

Hi, having issues w/ a Viper 5900 remote start in my 2004 Grand Prix. The alarm, triggers, sensors, lights, etc, all work fine. The problem is the RS sequence. When I RS the vehicle the ignition & accessory come on but no power is sent to the starter wire, hence no crank. I know this b/c I tested the module starter wire while triggering the sequence. I know the wire is is working properly. Does the bypass module power the starter wire? I read in a previous post that the starter wire (purple) is not needed. Can my bypass be stopping current from my alarm module?? I have a common ground for everything including the park/neutral. My bypass module is a PKU-GM that I assume is correctly connected. I programed it as stated in the instructions and I can hear the relay turn on that powers it. I did not hookup the starter disable so the starter wire was not cut leaving a key side and starter side. I only have the modules starter side wire connected. I spliced into the starter at the BCM, is this ok or should I try somewhere else? I checked the obvious, fuses, connections, relays, good ground and power supply. I thought it may be one of the modules wires that need to see ground (like a park/neutral switch) or GWR wire triggering the bypass but those were checked and double checked and all seem to be working fine.Any ideas would be appreciated seeing as my car looks like someone stole it and tore half the dash off currently. I refuse to reassemble and admit failure.

Thanks

neutral safety needs to see ground or ground when in park.

You need to cut the starter wire and hook up the start kill. the unit sends power to the crank through these wires. check the install guide to be sure which direction the wires go. if i remember right the purple goues towards the starter and the green goes towards the key.

Ok but regardless of whether or not the starter wire is cut or the key side wire is used (green) in conjunction w/ the starter side (purple) I should still see the 5900 module spitting out a voltage on either the green or purple wires. I have nothing. They test dead when the RS sequence occurs. It's almost like the module does not want to send power to the starter.
Its just weird b/c other wires in the harness (acc & ign) work fine. I also tried inserting the key into the ignition rather than relying on my bypass to override the immobilizer and I got the same results. Ign and acc on and no crank.

My purple is hooked up. I didn't hook up the green (key side) b/c I didn't want the starter kill feature nor did I cut my BCM starter wire. There is really not point considering my car has an immobilizer. It would be overkill.
I have 2 red 12v wires from the back of the fuse box connected to my 3 Viper heavy gauge power wires. I don't think my problem lies within these wires or derives from a power loss issue. I think I have a relay issue or a ground sensing issue.

All my wires have one common ground. I am not sure if this is ok or not.

Ok, now I am dazed and confused. I have been using the wire chart below. It shows nothing of a 2nd ign wire. Do I need the speed sense wire? What is the anti-theft RX & TX. Are those needed to be hooked up to something. Is that chart above for a 2004 Grand Prix?

12volts      red (50A), red (40A) + back of fuse box, passenger dash
Starter      yellow + ign harn or BCM, conn. C1, pin 21
Notes: The BCM (Body Control Module) is below the driver side dash to the left of the steering column.
Second Starter      N/A            
Ignition pink       + ign harn or BCM, conn. C1, pin 22
Notes: The BCM (Body Control Module) is below the driver side dash to the left of the steering column.

There are two pink wires in the BCM plug that meter as ignition. To verify that the correct wire is being energized for remote start, slide the key in the ignition key cylinder and then activate remote start. If the key in ignition warning chime comes on, then the correct wire is being energized.
Second Ignition      N/A            
Third Ignition      N/A            
Accessory brown + ign harn or BCM, conn. C1, pin 23
Notes: The BCM (Body Control Module) is below the driver side dash to the left of the steering column.
Second Accessory      N/A            
Keysense lt. green - ign harn or BCM, conn. C1, pin 40
Notes: The BCM (Body Control Module) is below the driver side dash to the left of the steering column.

If the service security lights comes on during remote start or after key takeover, see DirectFax document 1502.
Power Lock RED / black -       BCM, conn. C2, pin 2
Notes: The BCM (Body Control Module) is below the driver side dash to the left of the steering column.
Power Unlock ORANGE / black - BCM, conn. C2, pin 11
Notes: The BCM (Body Control Module) is below the driver side dash to the left of the steering column.
Lock Motor      gray       5wi      BCM, conn. C2, pin 52
Notes: The BCM (Body Control Module) is below the driver side dash to the left of the steering column.
Unlock Motor      tan       5wi      BCM, conn. C2, pin 46
Notes: The BCM (Body Control Module) is below the driver side dash to the left of the steering column.
Parking Lights+      brown       +       front of fuse box, passenger dash
Parking Lights-      BROWN / white       -       BCM, 18 pin plug, pin 8
Notes: The BCM (Body Control Module) is below the driver side dash to the left of the steering column.
Hazards      tan       -       BCM, 18 pin plug, pin 16
Notes: The BCM (Body Control Module) is below the driver side dash to the left of the steering column.
Turn Signal(L)      use hazards wire            
Turn Signal(R)      use hazards wire            
Reverse Light      lt. green       +       BCM, conn. C2, pin 42
Notes: The BCM (Body Control Module) is below the driver side dash to the left of the steering column.
Door Trigger      see notes       -       BCM, conn. C2
Notes: The driver door trigger is gray/black in pin 26, the front passenger door is BLACK/ white in pin 17, the left rear door is lt. blue/black in pin 7, and the right rear door is lt. GREEN/ black in pin 5. Use all four wires and diode isolate each.

The BCM (Body Control Module) is below the driver side dash to the left of the steering column.
Dome Supervision      gray/black       +       BCM, conn. C1, pin 43
Notes: The BCM (Body Control Module) is below the driver side dash to the left of the steering column.
Trunk/Hatch Pin      RED / black       -       BCM, conn. C2, pin 3
Notes: The BCM (Body Control Module) is below the driver side dash to the left of the steering column.
Hood Pin      N/A            
Trunk/Hatch Release      lt. blue       +       BCM, conn. C2, pin 45
Notes: The BCM (Body Control Module) is below the driver side dash to the left of the steering column.
Power Sliding Door      N/A            
Factory Alarm Arm      lt. green       -       BCM, conn. C2, pin 22
Notes: The BCM (Body Control Module) is below the driver side dash to the left of the steering column.
Factory Alarm Disarm      purple       -       BCM, conn. C2, pin 24
Notes: The BCM (Body Control Module) is below the driver side dash to the left of the steering column.
Disarm No Unlock      see factory alarm disarm            
Tachometer      white       ac       ignition control module, pin E
Notes: The ignition control module is on top of the engine towards the passenger side.
Wait to start      N/A            
Brake Wire      white       +       BCM, conn. C2, pin 30
Notes: The BCM (Body Control Module) is below the driver side dash to the left of the steering column.
Parking Brake      ORANGE / black       -       BCM, conn. C2, pin 9
Notes: The BCM (Body Control Module) is below the driver side dash to the left of the steering column.
Horn Trigger      black       -       BCM, conn. C1, pin 4
Notes: The BCM (Body Control Module) is below the driver side dash to the left of the steering column.
Memory Seat 1      N/A            
Memory Seat 2      N/A            
Memory Seat 3      N/A            
Interface Module:      Category:
Immobilizer Bypass      Required:
Yes      Type:
PASS-Key III
Part #: 556UW
Alternate Part1 #: DesignTech 20402
Alternate Part2 #: DesignTech 29402

I hooked up 4 wires total from the Viper module. 2 heavy gauge red wires, 1 heavy gauge RED / white all coming from the XCRS and then a smaller red (15A fuse) from the 12 pin Viper harness.

I tested the purple while doing the RS sequence and it appeared to be triggering a ground which I assumed activated a relay in the XCRS and then powered the purple starter wire. I will check to make sure the harness in connected properly but the purple wire is in the middle of the ribbon harness and chances are if it was not connected securely then my ign and acc would also not be working.

This smaller harness that plugs into the XCRS, can I direct ground it just for testing?

Also, something has been bothering me, does my H1/10 WHITE/ blue wire (- activation input) wire get grounded. The manual states it needs to see 2 consecutive ground pulses for the RS to activate. Does that mean I just ground it?

adroc3905 wrote:

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This smaller harness that plugs into the XCRS, can I direct ground it just for testing?

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Would keeping the WHITE/ blue grounded be my problem? I thought this wire was necessary for the RS to even operate. I guess I read it wrong. I have done a couple DEI alarms (Clifford) in the past but never on a car w/ PK3 immobilizer so I am learning as I go w/ this car and alarm.
Is it safe to assume I have the correct ign and acc wire if they power on during the RS activation? I read in my wiring diagram that I got from this site; the car has 2 wires that test as ign. To tell the difference I need to insert the key into the cylinder w/o turning it and start the RS. My door chime will sound indicating I have the correct wire.
I haven't actually done this test yet. I just found the ign wire that was mentioned on my wire diagram (pin 22 connector 1). I actually posted my entire diagram earlier in this thread. Can it be possible I have the wrong wire if my ign still comes on?

I will definately ground the small purple to see what happens.

Ok, I got the RS to function w/ the key in the ign. I have narrowed my prior failed attempts to an incorrect tach wire. I switched to voltage sensing and it fires up. Where is the closest correct tach wire in my 04 Grand Prix? Anything inside the car?

When it fires my headlights and dash lights blink on and off and my ign chime keeps pace w/ the blinking. I am not sure if it is b/c I am using the key to RS but it’s the only thing that works right now b/c my bypass is having issues.

As suspected my stupid PKU-GM did not program correctly. I have repeated the programming like 60 times and nothing works. I even tried starting the car w/ the key in the ign and the bypass connected/energized and the car does not like whatever signal it is receiving from the bypass antenna. I followed those program directions to a "T". Key on for 2 secs then off. Hold transponder w/o harness connected (screw side) against transponder ring. I even wrapped the antennawire around the actual black transponder ring connected to the ign cylinder. Any thoughts? Please don’t tell me I am SOL and I will need to spend another $50.00 on a transponder.