Isuzu N-Series. Manual - part 282

HSA (HILL START AID) 5A5-7

HSA Off Switch

The HSA is released with this switch depressed.
(HSA off warning light comes on at this time.)

HSA Adjust Switch

Used for fine adjustment of the clutch pedal position to
release the HSA brake force when operating to start the
vehicle. Also, used for initial adjustment.

N5A3009E

N5A3010E

HSA

ADJUST

N5A3011E

5A5-8 HSA (HILL START AID)

HSA Reset Switch

Used when the timing to release the HSA brake force is
shifted considerably when operating to start the vehicle
after clutch replacement or clutch play adjustment.

HSA Indicator Lamp

The HSA indicator lamp comes ON when HSA operat-
ing, and OFF when not operating. Also, it blinks sy-
cronized with alarm. It blinks or illuminates when a
malfunction occurs. Also used for while diagnosing.

N5A3012E

N5A3013E

HSA (HILL START AID) 5A5-9

Parts Location

B-1

B-7

F-28 FUSE
FL-1, FL-2 FUSIBLE LINK

J-128 HBB LEVEL SW

P-1~P-4 BATTERY

P-5

F-4, F-5, F-16, F-17, F-19
FUSE BOX ASM

H-3

B-318
HSA OFF SW

B-105
HSA RESET SW

H-12

H-10

B-79
DATA LINK
CONNECTOR

B-106
HSA ADJUST SW

B-51, B-52,
METER

L-2
ROOM LIGHT

N-2
DOOR SW RH

B-67
STARTER SW

N-7
DOOR SW LH

J-32
VEHICLE SPEED SENSOR

J-50
NEUTRAL SW

X-32 DIODE
X-33 DIODE

N-6
PARKING BRAKE SW

B-285
HSA CONTROL UNIT

J-155
HSA VALVE

B-102
CLUTCH FLUID PRESSURE SW

H-5~H-7

B-66
STOP LIGHT SW

B-103
CLUTCH SENSOR

N5A3070E

5A5-10 HSA (HILL START AID)

Circuit Diagram

F-17

10A

3B/Y

0.5B/O

0.5B/O

5W/B

0.5B/Y

0.5W/R

0.3GY/L

0.3GY/R

0.3GY/B

0.3SB

0.5B/O

0.5B/O

0.5B/O

0.5G

0.5G/Y

0.5G

0.5GY/R

1.25GR/B

0.3GY/B

0.5GY/B

0.5GR/B

0.5Y

0.5GY/R

0.5GY/R

0.5G

4

3

X-32

5W/B

8W/B

2

H-6

X-32

3W/B

8B

B-79

7

5

B-79

B-79

11

0.3B/W

0.3SB

B-79

4

METER

NEES (IG) / HSA

DATA LINK CONNECTOR

6

21

HSA CONTROL UNIT

B-285

15

B-285

B-285

0.5B

23

B-285

0.5B

3

B-285

0.5B

1.25B

30

B-285

7

B-285

0.5B/O

14

B-285

29

B-285

19

B-285

1

B-285

1

H-10

2

L-2

0.5R

0.5R

1

L-2

3

H-10

3

H-3

1

N-7

ST

ACC

ON

OFF

3B/Y

STARTER SWITCH

F-16

10A

3

B-67

3W/L

3W/L

1

H-7

2

B-67

AUDIO (B)
DOOR LOCK

F-4

15A

STOP LIGHT

F-5

10A

ENG. (BACK UP)
HSA

F-19

10A

MAIN

FL-1 100A/120A

KEY SW

FL-2 40A

STOP LIGHT

ROOM LIGHT SWITCH

ROOM LIGHT

DIODE

DOOR SWITCH LH

1.25GR/R

3

H-12

1

N-2

DOOR SWITCH RH

3

L-2

P-1

P-2

P-3

P-4

P-5

FRAME

STOP LIGHT SWITCH

B-66

B-66

1

2

HSA RESET SWITCH

HSA ADJUST SWITCH

SLOW

FAST

B-105

B-105

4

6

B-106

3

B-106

2

B-106

1

CLUTCH FLUID PRESSURE SWITCH

B-102

B-102

1

2

B-1

FRAME LH (FRONT)

B-7

3B

2B

HEADLIGHT BRACKET (LH)

N5A3068E