1998 ISUZU TROOPER Service Repair Manual

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ISUZU TROOPER 1998  Service Repair Manual AIR CONDITIONING  1BÐ99
*2. Displaying the Past Trouble Diagnosing Table
The past trouble diagnosis displays only the items on which trouble has recurred 16 times in the past.
If you press the air co

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ISUZU TROOPER 1998  Service Repair Manual 1BÐ100 AIR CONDITIONING
Independent check of sensors
Replace the control unit.
Sensors Allowable range Check method
In car sensor
Ambient sensor
Sun sensorRefer to the sensor resistance curve.
Refer

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ISUZU TROOPER 1998  Service Repair Manual AIR CONDITIONING  1BÐ101
Chart 1: In Car Sensor
NOReplace the sensor.
NODisconnection of the harness.
Failure on the automatic heater/air
conditioner control unit.
YES
Disconnect the in car sensor co

Page 228 of 3573

ISUZU TROOPER 1998  Service Repair Manual 1BÐ102 AIR CONDITIONING
Chart 2: Ambient Sensor
NOReplace the ambient sensor.
NOFailure on the harness.
Connect the ambient sensor connector.
Replace the automatic heater/air conditioner
control unit

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ISUZU TROOPER 1998  Service Repair Manual AIR CONDITIONING  1BÐ103
Chart 3: Sun Sensor
NOReplace the sun sensor.
NOReplace the harness.
Replace the automatic heater/air conditioner
control unit.
YES
Disconnect the sun sensor connector (I-35)

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ISUZU TROOPER 1998  Service Repair Manual 1BÐ104 AIR CONDITIONING
Inspection of the Intake Actuator System 
B-19I-32
B-36
H-26H-13
I-49I-33
12345678
9 101112131415161
112
123
134
145
156
167
178
189
1910
20
10 11 12 13 14 151234 5
17 18 19 2

Page 231 of 3573

ISUZU TROOPER 1998  Service Repair Manual AIR CONDITIONING  1BÐ105
Chart A: Does Not Work At All
NOFailure on the power supply circuit.
NOFailure on the actuator.
NOThe harness is disconnected.
NOReplace the automatic heater/air conditioner

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ISUZU TROOPER 1998  Service Repair Manual 1BÐ106 AIR CONDITIONING
Chart B: Failure on the Intake Control
NOThe harness is disconnected.
NOFailure on the automatic heater/air
conditioner control unit.
NOFailure on the automatic heater/air
con