Haltech Elite 550 pinout
ecurecovery.com/pinouts/haltech/elite-550 · Every pin checked against 2 Haltech documents · data checked 2026-11-01
Haltech Elite 550 pinout
Every pin of the 34-pin connector, with the wire colours of Haltech's harness. Tap a pin to see what it does.
Every pin checked against 2 Haltech documentsPick any pin on the drawing or in the table to see its function, its wire colour and the documents it was checked in.
Haltech Elite 550 34-pin connector pinout
| Pin | Function | Wire | Haltech note |
|---|---|---|---|
| 1 | DPO 2 | V/BRViolet with brown stripe | |
| 2 | AVI 1 (* O2 Sensor) | GY/YGrey with yellow stripeShielded | |
| 3 | IGN 1 | Y/BYellow with black stripe | |
| 4 | IGN 2 | Y/RYellow with red stripe | |
| 5 | IGN 3 | Y/OYellow with orange stripe | |
| 6 | IGN 4 | Y/GYellow with green stripe | |
| 7 | Not used | - | |
| 8 | Not used | - | |
| 9 | +5V DC | OOrange | |
| 10 | BATTERY GROUND | BBlack | |
| 11 | SIGNAL GROUND | B/WBlack with white stripe | |
| 12 | DPI 1 | GYGreyShielded | |
| 13 | Not used | - | |
| 14 | THROTTLE POSITION SENSOR | WWhite | |
| 15 | AVI 3 (* MAP) | YYellow | |
| 16 | CAN H | WWhite | |
| 17 | CAN L | LBlue | |
| 18 | DPO 1 | V/BViolet with black stripe | |
| 19 | INJ 1 | LBlue | |
| 20 | INJ 2 | L/BBlue with black stripe | |
| 21 | INJ 3 | L/BRBlue with brown stripe | |
| 22 | INJ 4 | L/RBlue with red stripe | |
| 23 | DPO 3 | V/RViolet with red stripe | |
| 24 | DPO 5 (* Fuel Pump Relay) | B/YBlack with yellow stripe | |
| 25 | DPO 4 | V/OViolet with orange stripe | |
| 26 | +13.8V ECU / INJECTOR PWR | R/LRed with blue stripe | |
| 27 | Not used | - | |
| 28 | Not used | - | |
| 29 | AIR TEMPERATURE | GYGrey | |
| 30 | COOLANT TEMPERATURE | VViolet | |
| 31 | TRIGGER + | YYellow | |
| 32 | HOME + | YYellow | |
| 33 | TRIGGER - | GGreen | |
| 34 | HOME - | GGreen |
Haltech Elite 550 pins at a glance
- Which pins are CAN on the Haltech Elite 550?
- CAN H: pin 16 (White, W). CAN L: pin 17 (Blue, L).
- Which pins are the crank and cam inputs on the Haltech Elite 550?
- TRIGGER +: pin 31 (Yellow, Y). HOME +: pin 32 (Yellow, Y). TRIGGER -: pin 33 (Green, G). HOME -: pin 34 (Green, G).
- Which pins are the injector outputs on the Haltech Elite 550?
- INJ 1: pin 19 (Blue, L). INJ 2: pin 20 (Blue with black stripe, L/B). INJ 3: pin 21 (Blue with brown stripe, L/BR). INJ 4: pin 22 (Blue with red stripe, L/R).
- Which pins are the ignition outputs on the Haltech Elite 550?
- IGN 1: pin 3 (Yellow with black stripe, Y/B). IGN 2: pin 4 (Yellow with red stripe, Y/R). IGN 3: pin 5 (Yellow with orange stripe, Y/O). IGN 4: pin 6 (Yellow with green stripe, Y/G).
- Which pins are ground on the Haltech Elite 550?
- BATTERY GROUND: pin 10 (Black, B). SIGNAL GROUND: pin 11 (Black with white stripe, B/W).
- Which pins power the Haltech Elite 550?
- +13.8V ECU / INJECTOR PWR: pin 26 (Red with blue stripe, R/L).
- Which pins are the sensor supplies on the Haltech Elite 550?
- +5V DC: pin 9 (Orange, O).
Haltech Elite 550 pinout sheet
A printable sheet with the connector drawings and every pin, made from the checked data on this page.
Where this comes from
Only Haltech's own documents. Pin names and notes are written exactly as Haltech writes them.
Haltech pinout table (support site)
Haltech quick start guide
Haltech wire colour codes
- B = Black
- BR = Brown
- G = Green
- GY = Grey
- L = Blue
- O = Orange
- R = Red
- V = Violet
- Y = Yellow
- W = White
Two letters: the first is the wire colour, the second is the stripe.
How we checked it
- We start from Haltech's pinout table for this ECU.
- We read every pin again from a second Haltech document, the wiring diagram or the quick start guide. A script compares the two, pin by pin.
- A pin is only shown when its function and its wire colour match in both. Where a diagram has no text to read, we read the pins off the drawing itself.
- The notes are Haltech's own words from its pinout table.
ECU Recovery is not affiliated with Haltech. Haltech and Elite are trademarks of Haltech. If your harness came with its own diagram, check your wiring against it.
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