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Mazda 323F BJ ZL-DE (1.5L) ECU Pinout Guide

This guide was written with the Automatic Transmission in mind however it should mostly cover the Manual Transmissions as well. Automatic transmission only parts are marked with **.

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http://jeffries-home.dyndns.org:8888/mazda_etude_ewd_5432_10_98g3.pdf http://jeffries-home.dyndns.org:8888/mazda_etude_ewd_5432_10_98g28.pdf http://jeffries-home.dyndns.org:8888/mazda_etude_ewd_5432_10_98g30.pdf http://jeffries-home.dyndns.org:8888/mazda_etude_ewd_5432_10_98g32.pdf http://jeffries-home.dyndns.org:8888/mazda_etude_ewd_5432_10_98g34.pdf

ECU Connector 1 (2x11PIN) 1U

1S

1Q

1O

1M

1K

1I

1G

1E

1C

1A

GY/R

L/B

Y/B

LG/W

** R/W **

#

** GR/B **

B/W

O

#

L/R

W/G (**B/L**)

W/L

R/B

G/B

G/O

BR/B

#

W/G

G/Y

LG

W/R

1V

1T

1R

1P

1N

1L

1J

1H

1F

1D

1B

1A

-

bLue/Red

-

V+ ??

1B

-

White/Red

-

V+ ??

1C

-

(EMPTY)

-

###

1D

-

Light Green

-

Data Link Connector

1E

-

Orange

-

Data Link Connector

1F

-

Green/Yellow

-

Brake Switch

1G

-

Black/White

-

Power Steering Pressure Switch

1H

-

White/Green

-

V+ ??

1I

-

Gray/Black

-

Instrument Cluster (25 - Auto Trans Speedometer Sensor)

1J

-

(EMPTY)

-

###

1K

-

(EMPTY)

-

###

1L

-

Brown/Black

-

Data Link Connector

1M

-

Red/White

-

Transaxle Fluid Temperature Sensor

1N

-

Green/Orange

-

Refrigerant Pressure Switch

1O

-

Light Green/White

-

Generator

1P

-

Green/Black

-

Refrigerant Pressure Switch

1Q

-

Yellow/Black

-

Instrument Cluster (20 - Charge LED - Ground)

1R

-

Red/Black

-

Cooling Fan Relay

1S

-

Blue/Black

-

A/C Relay

1T

-

White/Blue

-

Generator

1U

-

Gray/Red

-

Header Oxygen Sensor

1V

-

White/Green (** Black/Blue **)

-

MTX - Neutral Switch/Clutch Switch ATX - Transaxle Range Switch

ECU Connector 2 (2x6PIN) 2K

2I

2G

2E

2C

2A

Y/R

#

L/Y

R/Y

B/Y

Y/L

Y/B

#

GY/R

LG/R

#

#

2L

2J

2H

2F

2D

2B

2A

-

Yellow/bLue

-

Instrument Cluster (31 - Hold Light)

2B

-

(EMPTY)

-

###

2C

-

Black/Yellow

-

Hold Switch

2D

-

(EMPTY)

-

###

2E

-

Red/Yellow

-

Transaxle Range Switch (R)

2F

-

Light Green/Red

-

Transaxle Range Switch (L)

2G

-

bLue/Yellow

-

Transaxle Range Switch (S)

2H

-

Gray/Red

-

Transaxle Range Switch (D)

2I

-

(EMPTY)

-

###

2J

-

(EMPTY)

-

###

2K

-

Yellow/Red

-

Input/Turbine Speed Sensor

2L

-

Yellow/Black

-

Input/Turbine Speed Sensor

ECU Connector 3 (2x8PIN) 3O

3M

3K

3I

3G

3E

3C

3A

** LG **

** BR/W **

V/W

P/B

** Y/L**

R/L

P/L

#

** P **

** V **

LG/B

Y

L

#

G/R (O)

L/W

3P

3N

3L

3J

3H

3F

3D

3B

3A

-

(EMPTY)

-

###

3B

-

bLue/White

-

Mass Air Flow Sensor (Out of ECU)

3C

-

Pink/bLue

-

Variable Resistor / Heated Oxygen Sensor

3D

-

Green/Red (Orange) ??

-

G/R - (Manual Trans to Instrument Cluster) O - Vehicle Speed Sensor

3E

-

Red/bLue

-

Engine Coolant Temperature Sensor

3F

-

(EMPTY)

-

###

3G

-

** Yellow/bLue **

-

Knock Sensor **

3H

-

bLue

-

Camshaft Position Sensor

3I

-

Pink/Black

-

Throttle Position Sensor

3J

-

Yellow

-

Crankshaft Position Sensor

3K

-

Violet/White

-

IG- (to ABS/DataLinkConn/InstrClust) RPM ???

3L

-

Light Green/Black

-

Mass Air Flow Sensor (In to ECU)

3M

-

** Brown/White **

-

EGR Valve

3N

-

** Violet **

-

EGR Valve

3O

-

** Light Green **

-

EGR Valve

3P

-

** Pink **

-

EGR Valve

ECU Connector 4 (2x13PIN) 4Y

4W

4U

4S

4Q

4O

4M

4K

4I

4G

4E

4C

4A

B/Y

R/Y

**L/W**

**P/L**

**Y/G**

GY

BR

**L**

**GY/ L**

R

BR/Y

B

B/O

G/B

R/W

**BR/ B**

**B/ LG**

**B/O**

#

V

**BR/ R**

**G/W**

R/G

O

**W/B**

B/O

4Z

4X

4V

4T

4R

4P

4N

4L

4J

4H

4F

4D

4B

4A

-

Black/Orange

-

Ground

4B

-

Black/Orange

-

Ground

4C

-

Black

-

Sensor Ground ?? (or MAF/Lambda/Shield)

4D

-

** White/Black **

-

V+ ??

4E

-

Brown/Yellow

-

Throttle Position Sensor (In to ECU)

4F

-

Orange

-

Throttle Position Sensor

4G

-

Red

-

Ignition Coil #1

4H

-

Red/Green

-

Ignition Coil #2

4I

-

** Gray/Blue **

-

Pressure Control Solenoid (Out of ECU)

4J

-

** Green/White **

-

Condenser Fan Relay

4K

-

** Blue **

-

Pressure Control solenoid (In to ECU)

4L

-

** Brown/Red **

-

Purge Solenoid Valve

4M

-

Brown

-

IAC Valve (Out of ECU)

4N

-

Violet

-

Fuel Pump Relay

4O

-

Gray

-

IAC Valve (In to ECU)

4P

-

(EMPTY)

-

###

4Q

-

** Yellow/Green **

-

Shift Solenoid D

4R

-

** Black/Orange **

-

Shift Solenoid E

4S

-

** Pink/Blue **

-

Shift Solenoid A

4T

-

** Black/Light Green **

-

PRC Solenoid Valve

4U

-

** Blue/White **

-

Shift Solenoid B

4V

-

** Brown/Black **

-

Shift Solenoid C

4W

-

Red/Yellow

-

Fuel Injector #1

4X

-

Red/White

-

Fuel Injector #2

4Y

-

Black/Yellow

-

Fuel Injector #3

4Z

-

Green/Black

-

Fuel Injector #4