Why Did The Shop Do This? 2001 Tahoe, Viper 5706, DB3

This is the write up I followed to install the viper and db3 of course I rechecked with my wiring diagrams and it's the same the relay I was asking about was the 8617 at the bottom of this write up. Btw thanks kreg 357 you been a great help. 2002 Silverado with Viper 5806 and DB-ALL2 flashed with 4.02 GM5 Ver 3.12.106a firmware. Assumptions : Gasoline engine, factory door locks, going with D2D between Viper & DB-ALL2. There is no need for the 451M door lock module, the DB-ALL2 will handle the locks and alarm via it's connection to the J1850 Data wire at the OBD2 connector.           Pin Color          Description     Destination MH   1 Red      (+)12VDC Constant Input      Red  (+)  @ ignition harness MH   2 Black             (-) Chassis Ground      Chassis Ground MH   3 Brown            (+) Siren Output       Viper siren MH   4 WHITE/ Brown     Parking light isolation        Not Used MH   5 White             Parking light output BCM Gray Connector, Brown wire, pin 6 (+)     * Set jumper to (+) MH   6 Orange          (-)500mA Ground when armed         Not used DL   1 Blue (-)500mA Unlock output            Not used - handled via D2D DL   2 EMPTY  DL   3 Green (-)500mA Lock output Not used - handled via D2D RS   1 NC  RS   2 RED / Black   (+) Fused 12V acc/start input          RED / White  (+) @ ignition harness RS   3 Pink/Black  (+) Flex relay input 87a key side     Not used RS   4 Pink/White  (+) Ignition 2/flex relay output         White (+) @ ignition harness RS   5 Red   (+) Fused 12V Ignition 1 Input      Red  (+) @ ignition harness RS   6 Green   (+) Starter Input (key side)       Yellow (+) @ ignition harness     cut wire RS   7 Violet   (+)Start output (car side)           Yellow (+) @ ignition harness     cut wire RS   8 Orange       (+) Accessory output          Orange (+) @ ignition harness RS   9 RED / White  (+) Fused 12V Ignition 2     RED / White  (+) @ ignition harness RS  10 Pink  (+) Ignition 1 Input/output  Pink (+) @ ignition harness AST   1 Pink/White   (-) 200mA Ignition 2/flex Output           not used AST   2 Blue/White   (-) 200mA 2nd Status/rear defog output          not used AST   3 RED / White    (-) 200mA trunk release output not used AST   4 BLACK / YELLOW   (-) 200mA dome light output              not used AST   5 Dark Blue    (-) 200mA status output           Not used - handled via D2D AST   6 WHITE/ Black   (-) 200mA AUX 3 output        not used AST   7 WHITE/ Violet   (-) 200mA AUX 1 output        not used AST   8 ORANGE / Black   (-) 200mA AUX 4 output      not used AST   9 Gray (-) Hood pin input (NC or NO)             to kit supplied hood pin AST   10 Blue (-) trunk pin/instant trigger input (NC or NO)      not used AST   11 WHITE/ Blue   Activation Input         not used AST   12 Violet/White   Tachometer input                 Not used - handled via D2D AST   13 BLACK/ White   (-) neutral safety/parking brake input            Not used - handled via D2D ( E-Brake ? ) AST   14 GREEN/ Black   (-) 200mA Factory alarm disarm output       Not used - handled via D2D AST   15 Green (-) Door input        Not used - handled via D2D AST   16 BROWN / Black   (-) 200mA horn honk output optional ( already have Viper siren ) AST   17 Pink (-) 200mA Ignition 1 output     not used AST   18 Violet (+) Door input           not used AST   19 Violet/Black   (-) 200mA AUX 2 output      not used AST   20 Brown (+) Brake shutdown input    White (+)  @ brake pedal switch AST   21 Violet / YELLOW   (-) 200mA starter output    not used AST   22 Gray/Black   (-) Diesel wait to start input not used AST   23 Orange (-) 200mA accessory output       to extra relay Pin 85 ( for Brown ACC2 wire ) AST   24 GREEN / WHITE   (-) 200mA factory alarm arm output Not used - handled via D2D DB-ALL2 D2D harness to Viper Blue 14 Pin Plug Pin 2 Violet / YELLOW to OBD2 Pin 2 Violet Red 12 Pin Plug Pin 1 BLACK/ White to Tan (-)  @ BCM, purple plug, pin B4 Pins 8 & 9 to Yellow Passlock2 wire at steering column harness Black 10 Pin Plug Pin 8 Violet to Viper     RS   Pin 7  thick Violet (+) Start output Pin 9 Pink to Viper       RS   Pin 10  thick Pink  (+) Ignition 1 Input/output  Extra relay ( 8617 ) for ACC2 : Pin 85 to Viper    AST   Pin 23 Orange (-) 200mA accessory output Pin 86 and 87 to Red  (+) @ ignition harness through 25 amp fuse Pin 30 to Brown ACC2 @ ignition harness Pin 87a not usedMr.562

Please remember that that Pictorial and write-up was specific to a R/S system and the bypass module used. While there are many similarities, there are significant differences. 4806 with DB2 vs 5706 with Fortin INT-SL+ Correct me if I'm wrong but beside using a Viper 5706 instead of a Viper 4806, you are going to use a basic Passlock2 only bypass module instead of a full featured bypass module. The 5706 is an alarm system and will need to monitor the trucks doors and hood to provide the alarm functions. The DB2 was capable of handling the trucks factory alarm system. For your install you will have to hardwire the Viper Door Trigger inputs directly to the trucks door pins. If your truck has a factory alarm system additional wires must be run to control the factory alarm.    Lastly, the DB2 was directly handling the door locks while your install will use relays and direct connections to the (+) lock / unlock wires. I believe you have that aspect covered but I'm not positive. I really don't have a good grasp on where you are at right now to be sure how to advise you. My first thought would be for you to provide the actual wire connections made using the real Viper 5706 plugs and wire colors.Soldering is fun!

Sorry about the confusion kreg357 my current wiring for the 5706 goes as follows: MH 1 Red to ignition red MH 2 black to chassis ground MH 3 brown to viper siren MH 4 white/brown not used MH 5 white to brown wire at BCM also went on + MH 6 orange not used DL 1 blue not used DL 2 empty DL 3 green not used RS 1 empty RS 2 red/black to red/white ignition RS 3 pink/black not used RS 4 pink/white to white ignition RS 5 red to red ignition RS 6 green to yellow ignition RS 7 violet to yellow ignition RS 8 orange to orange ignition RS 9 red/white to red white ignition RS 10 pink to pink ignition AST 1 pink/white not used AST 2 blue/ white not used AST 3 red/white not used AST 4 black/yellow not used AST 5 dark blue not used AST 6 whute/black not used AST 7 white/violet not used AST 8 orange/black not used AST 9 gray to hood pin AST 10 blue not used AST 11 white/blue not used AST 12 violet/white not used AST 13 black/white to white brake pedal AST 14 green/black not used AST 15 green not used AST 16 brown/black to black wire at bcm AST 17 pink not used AST 18 violet not used AST 19 violet/black not used AST 20 brown to white brake pedal AST 21 violet/yellow not use AST 22 gray/black not used AST 23 orange not used AST 24 green/white not used DB3 d2d Blue plug violet/yellow to violet obd Red plug black/white to tan wire bcm Violet/green to yellow passlock Violet/brown to yellow passlock Black plug violet to RS violet wire Pink to RS pink ignition You have to connect the db3 as follows black plug first red plug second blue plug third and d2d last So now my question is do I need a acc2 relay? Mr.562

First, AST 13 goes to Chassis Ground for an Auto Trans vehicle that passes the NSS safety tests. I would also hardwire AST 12 to the DB3's Tach Output as shown in their diagram. Second, the DB3 should be flashed with the 403.GM5 Ver 4.10 firmware. Make sure that the DB3 vehicle programming procedure completes successfully and follows the guide exactly. Set the Viper to Auto Trans and Tach Mode. Perform a Tach Learn. Verify that the jumper fuse is set to (+) Parking Light Output. While I believe that the ACC2 Brown wire is not mandatory for your vehicle, I always add that relay and power all the ignition wires just like a normal key startup would. Again, I've never used a DB3. The modules I use for that vehicle only do the Passlock2 bypass function. There is a list of the functions supported by the DB3 om Page 4 of the install guide. I would definitely check out everything after the install, especially the rear door triggers for the 5706 alarm system.Soldering is fun!