tach 2003 yukon xl

need info for 2003 yukon  tach and location of wire .   and bypass  passlock  for   remote start  without   module

just goto a coil, its the wire thats a diffrent color than whats in another coil so say in coil one its pink, black, grey and red and coil 2 is pink, green, grey and red - its the green or black wire. The coils are lined alont the side of the engine and have the spark plug wired coming off them, there is one for each cylinder. I would advise to just get a moudle, you can get one from bypasskit.com that plugs into the data bus. to do your locks you'll have to get a data interferance kit, also plugs into your data wire - pin 2(viloet) of your OBD2 plug

|       ITEM      |     WIRE COLOR     |POL|       WIRE LOCATION        |

|              12V|red & RED / white     |+  |ignition harness            ||          STARTER|yellow              |+  |ignition harness            ||         IGNITION|pink                |+  |ignition harness            ||  SECOND IGNITION|white               |+  |ignition harness            ||        ACCESSORY|orange              |+  |ignition harness            || SECOND ACCESSORY|brown               |+  |ignition harness            ||       POWER LOCK|white *3            |-  |switch on right rear panel  ||     POWER UNLOCK|lt. blue *3         |-  |switch on right rear panel  ||       LOCK MOTOR|gray                |   |driver door module in door  ||     UNLOCK MOTOR|tan                 |   |driver door module in door  ||    DISARM DEFEAT|tan                 |   |driver rear door harness    || PARKING LIGHTS +|brown               |   |driver kick panel           || PARKING LIGHTS -|gray/black          |   |headlight switch            ||       HEADLIGHTS|pink or white       |-  |headlight switch            ||     DOOR TRIGGER|*1                  |-  |*1                          || DOME SUPERVISION|comes on with disarm|   |                            ||  TRUNK/HATCH PIN|pink/black          |-  |harness to BCM *2           ||         HOOD PIN|                    |   |                            ||TRNK/HTCH RELEASE|                    |   |                            ||  FCTRY ALARM ARM|                    |   |                            ||FCTRY ALRM DISARM|lt. green           |-  |driver door module in door  ||       TACHOMETER|NOT pink            |   |any fuel injector           ||      SPEED SENSE|                    |   |                            ||       BRAKE WIRE|white               |+  |brake pedal switch          ||     HORN TRIGGER|black or blk/yel    |-  |column or gray plug @ BCM *2||           WIPERS|                    |   |                            ||  LF WINDOW UP/DN|blue - brown        |A  |LF window switch in door    ||  RF WINDOW UP/DN|lt. blue - tan      |A  |RF window switch in door    ||  LR WINDOW UP/DN|blue - brown        |A  |LR window switch in door    ||  RR WINDOW UP/DN|blue - brown        |A  |RR window switch in door    |

Notes:

NOTE: This vehicle has the passlock II immobilizer system that, when adding a remote start, must be interfaced with. Use DEI part 555t or 555L.  *1 The driver door trigger is gray/black at the driver door module in the door. The RF door trigger is BLACK/ white at the passenger door module in the door. The LR door trigger is lt. blue/black and the RR is lt. GREEN/ black, they are in a harness in front of the fusebox leading to the BCM rear plug. Use all four wires and diode isolate each.  *2 The BCM (Body Control Module) is located behind the headlight switch.  *3 If the vehicle does not have a switch on the right rear panel then refer to directfax document #1601 for wiring information.

Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA

well fuel injectors work too, i just got done doing bunch of GM's new trucks and the coils been the easiest