Isuzu N-Series. Manual - part 1093

8-84 CAB AND CHASSIS ELECTRICAL

H-5

H-6, H-7, H-8

Neutral Switch

Refer to “START AND CHARGING” in this section.

Starter Relay

Refer to “START AND CHARGING” in this section.

Charge Relay

Refer to “START AND CHARGING” in this section.

Starter Switch

Refer to “START AND CHARGING” in this section.

Accel Switch

Inspection

1. Check the continuity between the switch connector

terminals.

2. Check to see if switch push rod operates smoothly.

Repair or replace the accel switch when result of
inspection is found abnormal.

Removal
Preparation:
Disconnect the battery ground cable.

1. Accel Switch

1) Disconnect the connector.
2) Loosen the lock nut of the switch.
3) Remove the switch by turning it.

P-5

(12 V)

No.

Connector Face

000-007

1

2

3

7

8

9

13

14 15

19

20 21

25

26 27

31

32 33

34

35

36

37

4

5

6

10

11 12

16

17 18

22

23 24

28

29 30

38

39 40

6

5

4

12

11 10

18

17 16

24

23 22

30

29 28

40

39 38

3

2

1

9

8

7

15

14 13

21

20 19

27

26 25

33

32 31

34

35

36

37

N8A5488E

1

2

1

2

1 2 3 4

5 6 7 8

9 10 11 12 13

14 15 16 17 18

2

1

2

1

4 3 2 1

8 7 6 5

13 12 11 10 9

18 17 16 15 14

H - 6

H - 7

H - 8

N8A5489E

N8A5091E

N8A0088E

CAB AND CHASSIS ELECTRICAL 8-85

Installation
To install, follow the removal steps in the reverse order,
noting the following points.

1. Check to see if the accel pedal has been returned

by the return spring to the specified position.

2. Turn the accel switch clockwise until the tip of the

threaded portion of the switch contacts the pedal
arm.

3. Tighten the lock nut to the specified torque.

Tighten:
Lock nut to 13 N

⋅m (130 kg⋅cm / 115lb⋅in)

Clutch Switch

Inspection

1. Check the continuity between the switch connector

terminals.

2. Check to see if switch push rod operates smoothly.

Repair or replace the switch when result of inspec-
tion is found abnormal.

Removal and Installation
Refer to “Accel Switch” in this section.

N8A0089E

8-86 CAB AND CHASSIS ELECTRICAL

Exhaust Brake Switch

Inspection
Check the continuity between the terminals of the exhaust brake switch.
Repair or replace the switch when the result of inspection is found abnormal.

Removal and Installation
Refer to “HEADLIGHT, FOG LIGHT AND CORNERING
LIGHT” in this section.

Exhaust Brake Magnetic Valve (4JG2 Engine)

Inspection
Connect the magnetic valve connector terminal No.1 to
the battery (+) terminal and terminal No. 2 to the (

−) ter-

minal and then check the continuity among each port.
Repair or replace the magnetic valve when the result of
inspection is found abnormal.

N8A5095E

N8A5096E

CAB AND CHASSIS ELECTRICAL 8-87

Exhaust Brake Magnetic Valve (4JG2, 4H Series
Engine)

Inspection
Connect the magnetic valve connector terminal No. 1 to
the battery (+) terminal and terminal No. 2 to the (

−) ter-

minal and then check the continuity among each port.

Vacuum Switching Valve: Intake Throttle (4H
Series Engine)

Inspection
Connect the magnetic valve connector terminal No. 1 to
the battery (+) terminal and terminal No. 2 to the (

−) ter-

minal and then check the continuity among each port.
Repair or replace the vacuum switching valve when the
result of inspection is found abnormal.

N8A0094E

N8A0096E