Systemä Pinout

The detailed description as well as the pin reference for TunerStudio is given in the user manual you received with your purchase.

View from wiring side:

Connector A Pinout

AMPSEAL A Pin N°	Description	Comment
1	EGT + IN	EGT + IN (Only in units with EGT support)
2	EGT - IN	EGT - IN (Only in units with EGT support)
3	EXTERNAL MAP	External MAP IN
4	O2 IN 1	O2 Sensor IN 1
5	O2 IN 2	O2 Sensor IN 2
6	TRANS 2 +	Transmission / VSS IN 2 +
7	TRANS 1 +	Transmission / VSS IN 1 +
8	12v	12v Supply IN
9	CAN L	CAN Low
10	CAN H	CAN H
11	12v AUX IN 1	12v ON/OFF Aux IN 1
12	12v AUX IN 2	12v ON/OFF Aux IN 2
13	5v	5v supply for TPS and external MAP
14	AUX IN 1	GND ON/OFF Aux IN 1
15	GND	GND
16	GND	GND
17	TPS	Throttle Position Sensor
18	Analog AUX IN 1	Analog sensor aux IN 1
19	CLT	Coolant Temperature Sensor IN
20	Analog AUX IN 2	Analog sensor aux IN 2
21	MAT	Manifold Air Temperature Sensor IN
22	Knock 1	Knock Sensor Input 1
23	Knock 2	Knock Sensor Input 2
24	CKP -	CKP Sensor - (Negative) IN
25	CKP +	CKP Sensor + (Positive) IN
26	CAM 1 -	CAM Sensor 1 - (Negative) IN
27	CAM 1 +	CAM Sensor 1 + (Positive) IN
28	CAM 2 -	CAM Sensor 2 - (Negative) IN
29	CAM 2 +	CAM Sensor 2 + (Positive) IN
30	CAM 3 -	CAM Sensor 3 - (Negative) IN
31	CAM 3 +	CAM Sensor 3 + (Positive) IN
32	AUX IN 2	GND ON/OFF Aux IN 2
33	AUX IN 3	GND ON/OFF Aux IN 3
34	FLEX IN	Flex Fuel sensor IN
35	AUX IN 4	GND ON/OFF Aux IN 4

AMPSEAL B Pin N°	Description	Comment
1	AUX OUT 2	High current general purpose output (negative, 36A)
2	AUX OUT 1	High current general purpose output (negative, 36A)
3	INJ H	Fuel injector H output (negative)
4	INJ G	Fuel injector G output (negative)
5	INJ F	Fuel injector F output (negative)
6	INJ E	Fuel injector E output (negative)
7	INJ D	Fuel injector D output (negative)
8	INJ C	Fuel injector C output (negative)
9	INJ B	Fuel injector B output (negative)
10	INJ A	Fuel injector A output (negative)
11	LSU HEATER -	LSU 4.9 PIN:3
12	AUX OUT 3	High current general purpose output (negative, 36A)
13	SPK G	Spark G Output (+5v)
14	SPK F	Spark F Output (+5v)
15	SPK E	Spark E Output (+5v)
16	SPK D	Spark D Output (+5v)
17	SPK C	Spark C Output (+5v)
18	SPK B	Spark B Output (+5v)
19	SPK A	Spark A Output (+5v)
20	IAC 1A OUT	Stepper IAC 1A OUT
21	IAC 1B OUT	Stepper IAC 1B OUT
22	IAC 2A OUT	Stepper IAC 2A OUT
23	IAC 2B OUT	Stepper IAC 2B OUT
24	SPK H	Spark H Output (+5v)
25	AUX OUT 4	High current general purpose output (negative, 36A)
26	AUX OUT 5	High current general purpose output (negative, 36A)
27	AUX OUT 6	High current general purpose output (negative, 36A)
28	AUX OUT 7	High current general purpose output (negative, 36A)
29	TACH OUT	Tachometer output signal (negative, very old tachometers may require tach adapter module)
30	AUX OUT 8	High current general purpose output (negative, 36A)
31	FP OUT	Fuel pump relay output signal (negative)
32	LSU IP	LSU 4.9 PIN:1
33	LSU-VGND	LSU 4.9 PIN: 2
34	LSU-IA	LSU 4.9 PIN: 5
35	LSU-NERNT	LSU 4.9 PIN: 6