Nexus S3 ECU Only (HT-213000)
Nexus S3 ECU Only (HT-213000)
Nexus S3 ECU Only (HT-213000)
Nexus S3 ECU Only (HT-213000)
Nexus S3 ECU Only (HT-213000)
Nexus S3 ECU Only (HT-213000)
Nexus S3 ECU Only (HT-213000)
Nexus S3 ECU Only (HT-213000)
ECU
ECU

Engine management

Harness
Harness

Sold separately

Connector Kit
Connector Kit

Sold separately

Vendor:Haltech

Nexus S3 ECU Only (HT-213000)

SKU: HT-213000

Nexus Must-Haves
$2,265.00
ECU
ECU

Engine management

Harness
Harness

Sold separately

Connector Kit
Connector Kit

Sold separately
From Shawn: Not sure this product is right for your build? Email me at service@tunedbyshawn.com before you order. I answer these myself.
NSP - Nexus Software Programmer Download

ECUs always ship FREE with Tuned By Shawn!

Manufacturer Limited Warranty

Product details

Description

Small part, real job. Nexus S3 ECU Only and does it the way the rest of a Haltech system expects.

Why It Matters

Correct pinouts the first time, labelled circuits that make diagnosis simple, and factory-grade terminations with no splices to suspect later. Wiring is where builds stall, and purpose-built harnesses are how they don't.

Upgrade your engine's performance and functionality with Haltech's Nexus S3, successor to the Elite 2500. Designed for engines with up to 8 cylinders or 4 rotors, this ECU is perfect for advanced racing applications.

The Details

  • SKU: HT-213000

Nexus S3 ECU Pinout

Complete pin-by-pin map of both Nexus S3 ECU connectors. Wire colors are those of the Nexus S3/S2 universal wire-in harness, which is sold separately.

Connector A

34-pin AMP, Keyway 1 - power, ground, injectors, ignition, DPO, HBO and CAN 1.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34

Looking into the connector on the ECU

Pin Function Harness Wire Color
A1 Injector 1 Blue
A2 Injector 2 Blue/Black
A3 Injector 3 Blue/Brown
A4 Injector 4 Blue/Red
A5 Injector 5 Blue/Orange
A6 Injector 6 Blue/Yellow
A7 Injector 7 Blue/Green
A8 Injector 8 Blue/Violet
A9 DPO 1 Violet/Black
A10 Battery Ground Input Black
A11 Battery Ground Input Black
A12 DPO 2 Violet/Brown
A13 Ignition Switch Input Pink
A14 DPO 3 Violet/Red
A15 DPO 4 Violet/Orange
A16 DPO 5 Violet/Yellow
A17 DPO 6 Violet/Green
A18 Switched +12V Input Red
A19 HBO 1 Brown/Black
A20 HBO 2 Brown/Red
A21 HBO 3 Brown/Green
A22 HBO 4 Brown/Pink
A23 CAN 1 High White
A24 CAN 1 Low Blue
A25 Switched +12V Input Red
A26 ECR Output Black/Red
A27 Ignition 1 Yellow/Black
A28 Ignition 2 Yellow/Red
A29 Ignition 3 Yellow/Orange
A30 Ignition 4 Yellow/Green
A31 Ignition 5 Yellow/Brown
A32 Ignition 6 Yellow/Blue
A33 Ignition 7 Yellow/Violet
A34 Ignition 8 Yellow/Grey

Connector C

34-pin AMP, Keyway 2 - engine position, sensors, inputs, knock, wideband and CAN 2.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34

Looking into the connector on the ECU

Pin Function Harness Wire Color
C1 Trigger (Crank) + Yellow
C2 Trigger (Crank) - Green
C3 Home (Cam) + Yellow
C4 Home (Cam) - Green
C5 SPI 1 Grey/Brown
C6 SPI 2 Grey/Red
C7 SPI 3 Grey/Orange
C8 SPI 4 Grey/Yellow
C9 Sensor +8V Supply Orange/White
C10 AVI 1 White
C11 AVI 2 White/Yellow
C12 AVI 3 White/Grey
C13 AVI 4 White/Violet
C14 AVI 5 White/Green
C15 AVI 6 White/Orange
C16 AVI 7 White/Black
C17 AVI 8 White/Brown
C18 AVI 9 White/Red
C19 SPI 5 Grey/Pink
C20 SPI 6 Grey/Light Green
C21 CAN 2 High White
C22 CAN 2 Low Blue
C23 Knock 1 White
C24 Knock 2 White
C25 Sensor +5V Supply Orange
C26 Signal Ground Black/White
C27 AVI 10 Light Green
C28 AVI 11 Light Green/Black
C29 WBI 1 Heater + Grey
C30 WBI 1 Input Yellow
C31 WBI 1 Pump Red
C32 WBI 1 Nernst Black
C33 WBI 1 Heater - White
C34 WBI 1 Cal Green

Trigger and Home run in shielded four-core cable (Trigger: grey jacket, Home: grey/black jacket). The red +12V and black signal-ground cores in those cables land on Connector A, not Connector C. Knock 1 and Knock 2 each run in shielded two-core cable. Shielded cables should be earthed at one end only.

Pinout data taken from the Haltech Nexus S3 / Nexus S2 Universal Wire-In Harness wiring diagram (HT-182200, revision 1.1) and the Nexus S3/S2 Quick Start Guide. This listing is the ECU only - the wire-in harness, sensors and hardware are sold separately.

Applications

Unsure whether this suits your ECU or build? Send us the details before ordering and we will confirm compatibility.

Tuned By Shawn is a Platinum Haltech Dealer. Questions on compatibility with your ECU or build, send them through before ordering and we will confirm the right part.