Isuzu Trooper (1998-2002 year). Service manual — part 42
AIR CONDITIONING 1B–109
Chart B: Mix Actuator Control Failure
NO
Replace the actuator.
NO
The harness is disconnected.
NO
NO
Mix actuator control failure due to the
failed sensor.
YES
YES
YES
YES
Turn on the ignition switch (the engine is
started).
Replace the automatic heater/air conditioner
control unit.
Is conduction provided between the
following chassis harness side
connector terminals?
No.3 and
No.11 .
No.7 and
No.5 .
No.2 and
No.15 .
I-33
I-45
I-33
I-45
I-33
I-45
Is sum of the voltages between the
following chassis harness side connector
terminals approximately 5V?
Voltage between No.15
and No.5
plus voltage between No.5
and No.11
.
I-33
I-33
I-33
I-33
Does the self-diagnosis function (the
current trouble display) indicate failure
on the mix actuator potentiometer?
Is full stroke of the air mix door available
when you selected FH or FC using the
temperature control lever?
Failure on the air mix door or the link
unit.
1B–110 AIR CONDITIONING
Inspection of the Mode Actuator System
H-26
10 11 12 13 14 15
1 2 3 4 5
17 18 19 20
6 7 8 9
16
9 8 7 6
20 19 18 17 16
5
14
15
4
13
3
12
2
11
1
10
H-25
I-32
I-33
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
1
11
2
12
3
13
4
14
5
15
6
16
7
17
8
18
9
19
10
20
I-32
0.3Y/BR
0.3Y/BR
B-69
I-33
10
9
8
7
11
6
3
(
DEF TO VENT
)
+
VENT side
+
DEF side
MODE1
MODE2
MODE3
MODE4
MODE5
S.GND
4
1
2
3
4
20
5
26
25
11
0.5Y/G
0.3Y/G
12
0.3GR
0.3GR
0.3GR/G
18
0.5GR/R
0.5GR/R
19
0.5GR/G
0.3GR/G
5
0.3GR/L
0.3GR/L
1
0.5B/L
0.3B/L
4
Auto A/C Control Unit
M
1
5
4
3
8
7
2
6
9
VENT
FOOT
DEF
B/L
D/F
Mode Actuator
(Heater Unit)
(
VENT TO DEF
)
H-25
H-25
H-26
H-26
H-25
H-26
H-26
0.5B/L
8
H-25
B-69
1
2
5
6
3
4
8
9
7
10 9 8 7 6
5 4 3 2 1
2221201918
1514131211
17
16
1 2 3 4 5
1112131415
6 7 8 9 10
1819202122
16
17
Type of the
trouble
Control failure.
Chart B
Does not work at all.
Chart A
D08RY00180
AIR CONDITIONING 1B–111
Chart A: Does Not Work At All
NO
The harness is disconnected.
NO
Replace the automatic heater/air
conditioner control unit.
NO
Replace the automatic heater/air
conditioner control unit.
YES
YES
YES
Turn on the ignition switch (the engine is
started).
Disconnect the mode actuator connector
(B-69).
Select VENT pushing the mode actuator
switch.
Turn on the DEF mode switch.
Failure on the actuator.
Is the battery voltage provided on a
regular interval between the following
chassis side connector terminals?
No.3
(+) and No.4
(-).
I-32
I-32
Is conduction provided between the
following chassis harness side connector
terminal?
No.1 and
No.4 .
No.5 and
No.3 .
I-32
B-69
I-32
B-69
Is the battery voltage provided on a
regular interval between the following
chassis harness side connector
terminals?
No.4
(+) and No.3
(-).
I-32
I-32
1B–112 AIR CONDITIONING
Chart B: Mode Actuator Control Failure
NO
The harness is disconnected.
NO
Replace the actuator.
NO
Failure on the mode door or the link unit.
YES
Mode control failure due to the failed
sensor.
NO
YES
YES
YES
Turn on the ignition switch (the engine is
started).
Replace the automatic heater/air conditioner
control unit.
Is conduction provided between the
following chassis harness side
connector terminals?
No.9 and
No.11 .
No.3 and
No.10 .
No.4 and
No.8 .
I-33
B-69
I-33
B-69
I-33
B-69
Is sum of the voltages between the
following chassis harness side connector
terminals approximately 5V?
Voltage between No.15
and No.1
plus voltage between No.15
and No.11
.
I-33
I-32
I-32
I-32
Does the mode work normally through
manual operation?
Is full stroke available from the mode
door when the defrost mode and vent
mode are selected?
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст