Isuzu N-Series. Service manual — part 456

6E-160 EMISSION AND ELECTRICAL DIAGNOSIS

Chart of Engine Control Module (ECM) In-
put/Output

Connector

number

Connector name

A-1

CHECKER

A-2

Not used

A-3

QOS (W/Glow only)

A-4

Not used

A-5

Not used

A-6

RACK+

A-7

RACK SIG

A-8

BATTERY

A-9

IGKBY

A-10

Not used

A-11

Not used

A-12

Not used

A-13

Not used

A-14

Not used

A-15

CHECKER GND

A-16

DIAG

A-17

Not used

A-18

Not used

A-19

Not used

A-20

Not used

A-21

RACK-

A-22

GND

A-23

Not used

A-24

Not used

A-25

Not used

A-26

Not used

A-27

Not used

A-28

Not used

A-29

Not used

A-30

Not used

Connector

number

Connector name

B-1

VSV: EGR

B-2

GLOW RELAY

B-3

GLOW IND LAMP

B-4

Not used

B-5

Not used

B-6

Not used

B-7

THERMO -

B-8

THERMO +

B-9

ENGINE -

B-10

ENGINE +

B-11

Not used

B-12

Not used

B13

Not used

B-14

Not used

B-15

Not used

B-16

Not used

B-17

Not used

B-18

STARTER

B-19

EXH BRAKE

B-20

Not used

B-21

Not used

B-22

Not used

EMISSION AND ELECTRICAL DIAGNOSIS 6E-161

Location of the Engine Control Module (ECM) Connector

Location of Data Link Connector (DLC)

Legend

A. 30 pins connector (green)

1. Engine control module (ECM)

B. 22 pins connector (green)

Legend

A. Right-hand drive

C. Terminal assignment of diagnosis connector

B. Left-hand drive

N6A1305E

N6A1665E

6E-162 EMISSION AND ELECTRICAL DIAGNOSIS

NO

TERMINAL NAME

6

DIAG CONTROL

7

CHECKER SIG

4, 5

CHECKER GND

N6A1399E

EMISSION AND ELECTRICAL DIAGNOSIS 6E-163

Engine Control Module (ECM) System Wiring Diagram

N6A1307E