1998 ISUZU TROOPER Service Repair Manual

Page 241 of 3573

ISUZU TROOPER 1998  Service Repair Manual AIR CONDITIONING  1BÐ115
Chart B: Fan Does Not Rotate in MAX HI Mode
NOThe harness is disconnected.
YES
NONONO YES
YES
YES
Turn on the ignition switch (the engine is
started).
Set the fan switch to t

Page 242 of 3573

ISUZU TROOPER 1998  Service Repair Manual 1BÐ116 AIR CONDITIONING
Chart C: Fan Does Not Rotate In Any Mode Other Than MAX HI
NOReplace the power transistor.
NOFailure on the ground or the harness is
disconnected.
NOThe harness is disconnecte

Page 243 of 3573

ISUZU TROOPER 1998  Service Repair Manual AIR CONDITIONING  1BÐ117
Chart D: Fan Does Not Stop
NOReplace the power transistor.
NOReplace the relay.
YES
NO YES
Turn on the ignition switch (the engine is
started).
YES
Is the power transistor pe

Page 244 of 3573

ISUZU TROOPER 1998  Service Repair Manual 1BÐ118 AIR CONDITIONING
Inspection of the Magnet Clutch System
6VE1 Engine
I-32
C-1C-3I-33
E-3E-19
12345678
9 10111213141516
1
112
123
134
145
156
167
178
189
1910
20
B-19C-25
A 2
B-361
H-14
C-19
25A

Page 245 of 3573

ISUZU TROOPER 1998  Service Repair Manual AIR CONDITIONING  1BÐ119
Chart A: Magnet Clutch Does Not work
NOThe harness is disconnected.
NOReplace the failed relay.
NOFailure on the power supply system.
NO
NO
NOReplace the fuse.
YESFailure on

Page 246 of 3573

ISUZU TROOPER 1998  Service Repair Manual 1BÐ120 AIR CONDITIONING
NO
NOThe harness is disconnected.
YES YES
Failure on PCM (see Chapter 6E for A/C
control with PCM).
Is the battery voltage present between the
chassis harness side connector t

Page 247 of 3573

ISUZU TROOPER 1998  Service Repair Manual AIR CONDITIONING  1BÐ121
4JX1 Engine
Magnet clutch does not work.
Chart A
Type of trouble
C-25
0.5 BR
C-25
X-5X-5
X-5X-5
2 1
4 3
0.5 P/G FL-1 MAIN
80A
C-20 
10A A/C
0.5 G/W 0.5 G/O
C-25E-27H-16
Press

Page 248 of 3573

ISUZU TROOPER 1998  Service Repair Manual 1BÐ122 AIR CONDITIONING
Chart A: Magnet Clutch Does Not Work
NOReplace the fuse.
NOReplace the failed relay.
NOReplace the electronic thermostat.
YESFailure on the magnet clutch.
NOThe harness is dis