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ADAPTER PINOUT REFERENCE
MAZDA MX-5 NB
Vehicle connector:
CONNECTOR 37
CONNECTOR 36
Connector 37
Connector 36
9
8
7
6
5
4
3
2
1
7
6
5
4
3
2
1
21
20
19
18
17
16
15
14
13
12
11
10
16
15
14
13
12
11
10
9
8
31
30
29
28
27
26
25
24
23
22
24
23
22
21
20
19
18
17
9
8
7
6
5
4
3
2
1
17
16
15
14
13
12
11
10
25
24
23
22
21
20
19
18
34
33
32
31
30
29
28
27
26
Connector C
Keyway Type 2
All connectors above are shown with reference to the pin side (front of connectors).
CONNECTOR 84
CONNECTOR 35
CONNECTOR 34
Connector 84
Connector 35
Connector 34
(Unused)
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
7
6
12
11
10
9
8
7
19
18
17
16
15
14
13
12
11
10
15
14
13
17
16
15
14
13
28
27
26
25
24
23
22
21
20
22 21
20
9
8
7
6
5
4
3
2
1
17
16
15
14
13
12
11
10
25
24
23
22
21
20
19
18
34
33
32
31
30
29
28
27
26
Connector A
Keyway Type 1
10
Pin
Function
A1
Injector 1
A2
Injector 2
(Unused)
A3
Injector 3
A4
Injector 4
A5
Injector 5 (S3 only)
5
4
3
2
1
A6
Injector 6 (S3 only)
12
11
10
9
8
A7
Injector 7 (S3 only)
19
18
17
16
A8
Injector 8 (S3 only)
A9
DPO 1
A10
Battery ground input
A11
Battery ground input
A12
DPO 2
A13
Ignition switch input
A14
DPO 3
A15
DPO 4
A16
DPO 5
A17
DPO 6
A18
+12V switched input
A19
HBO 1
A20
HBO 2
A21
HBO 3
A22
HBO 4
A23
CAN 1 H
A24
CAN 1 L
A25
+12V switched input
A26
ECR output
A27
Ignition 1
A28
Ignition 2
A29
Ignition 3
A30
Ignition 4
A31
Ignition 5 (S3 only)
A32
Ignition 6 (S3 only)
A33
Ignition 7 (S3 only)
A34
Ignition 8 (S3 only)
NEXUS S3/S2 ECU CONNECTOR A (KEYWAY TYPE 1)
Colour
Vehicle connector
Blue
8401
Blue/Black
8402
Blue/Brown
8403
Blue/Red
8404
Blue/Orange
No connection
Blue/Yellow
No connection
Blue/Green
No connection
Blue/Violet
No connection
Violet/Black
3621
Black
No connection
Black
3701, 3608, 3602, 3601
Violet/Brown
8410
Pink
3716
Violet/Red
8412
Violet/Orange
8413
Violet/Yellow
8405
Violet/Green
3705
Red
8406, 3709
Brown/Black
3617
Brown/Red
3606
Brown/Green
3711
Brown/Pink
3604
White
CAN connector Pin 3
Blue
CAN connector Pin 4
Red
8406, 3709
Black/Red
3610
Yellow/Black
3618
Yellow/Red
3619
Yellow/Orange
8407
Yellow/Green
8417
Yellow/Brown
8411
Yellow/Blue
No connection
Yellow/Violet
No connection
Yellow/Gray
No connection
11 11
Function
Injector 1
Injector 2
Injector 3
Injector 4
No connection
No connection
No connection
No connection
Tachometer
Reserved for shield
Power ground
AC control
Ignition switch input
Idle Control (BAC)
Condenser fan
Fuel pump
VCT solenoid (VCT model)
+12V power from ECR
Evap
Battery light
Boost solenoid (Turbo model)
Alternator control
Haltech CAN devices
(See page 7 for details)
+12V power from ECR
ECR
Ignition 1 and 4
Ignition 2 and 3
Thermofan
Check engine light
VTCS
No connection
No connection
No connection
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