Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 33

 

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Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 33

 

 

HEATING, VENTILATION AND AIR CONDITIONING (HVAC) 1A–103

Chart B: Failure on the Intake Control 

Step

Action

Value(s)

Yes

No

1

Is the fuse No.F–7 normal?

—

Go to 

Step 2

Replace the

fuse

2

Is the relay No.X–1 normal?

—

Go to 

Step 3

Replace the

relay

3

Turn on the ignition switch. (the engine is run.)

Is the intake actuator stopped?

—

Go to 

Step 5

Go to 

Step 4

4

Replace or repair the auto air conditioner control unit.

Is the action complete?

—

Verify repair

—

5

Is there continuity between the harness side connector
terminal No.C33–5 and No.I20–11?

—

Go to 

Step 7

Go to 

Step 6

6

Repair an open circuit between terminal No.C33–5 and
No.I20–11.

Is the action complete?

—

Go to 

Step 5

—

7

Is there continuity between the harness side connector
terminal No.C33–6 and No.I20–12?

—

Go to 

Step 9

Go to 

Step 8

8

Repair an open circuit between terminal No.C33–6 and
No.I20–12.

Is the action complete?

—

Go to 

Step 7

—

9

Is there continuity between the harness side connector
terminal No.C33–1 and No.I20–13?

—

Go to 

Step 11

Go to 

Step 10

10

Repair an open circuit between terminal No.C33–1 and
I20-13.

Is the action complete?

—

Go to 

Step 9

—

11

Is there continuity between the harness side connector
terminal No.C33–2 and No.I20–14?

—

Go to 

Step 13

Go to 

Step 12

12

Repair an open circuit between harness No.C33–2 and
No.I20–14.

Is the action complete?

—

Go to 

Step 11

—

13

1. Disconnect the intake actuator connector No.C33.
2. Is the battery voltage applied between harness side

connector terminal
No.C33–6 and ground?
No.C33–2 and ground?
No.C33–1 and ground?

—

Go to 

Step 14

Go to 

Step 15

14

Replace or repair the intake actuator.

Is the action complete?

—

Verify repair

—

15

Replace or repair the air conditioner control unit.

Is the action complete?

—

Verify repair

—

1A–104 HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

Inspection of the Mix Actuator System

D08R200032

Condition

Possible cause

Correction

Does not work at all

—

Refer to 

Chart A

Control failure

—

Refer to 

Chart B

HEATING, VENTILATION AND AIR CONDITIONING (HVAC) 1A–105

Chart A: Does Not work At All 

Step

Action

Value(s)

Yes

No

1

1. Turn on the ignition switch (the engine is run).
2. Disconnect the mix actuator connector (C–43).
3. Short-circuit the chassis harness side connector

terminal No.C43–3 and No.C43–7.

4. Using the temperature control switch, select 18

°

C

(65

°

F) for the temperature.

Is the battery voltage applied on a regular interval basis
between the harness side connector terminal
No.C43–6 (-) and No.C43–8 (+)?

—

Go to 

Step 3

Go to 

Step 2

2

Replace the auto air conditioner control unit.

—

Varify repair

—

3

Using the temperature control switch, select 32

°

C

(90

°

F) for the temperature.

Is the battery voltage applied on a regular interval basis
between the harness side connector terminal
No.C43–6 (+) and No.C43–8 (-)?

—

Go to 

Step 5

Go to 

Step 4

4

Replace the auto air conditioner control unit.

—

Verify repair

—

5

Is there continuity between the harness side connector
terminal No.I19–6 and No.C43–6?

—

Go to 

Step 7

Go to 

Step 6

6

Repair an open circuit between terminal No.I19–6 and
No.C43–6.

Is the action complete?

—

Go to 

Step 5

—

7

Is there continuity between the harness side connector
terminal No.I19–5 and No.C43–8?

—

Go to 

Step 9

Go to 

Step 8

8

Repair an open circuit between terminal No.I19–5 and
No.C43–8.

Is the action complete?

—

Verify repair

—

9

Replace the mix actuator.

Is the action complete?

—

Verify repair

—

1A–106 HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

Chart B: Mix Actuator Control Failure 

Step

Action

Value(s)

Yes

No

1

Turn the ignition switch (the engine is run).

Dose the mix actuator fully stroke when 32

°

C (90

°

F)

and 18

°

C (65

°

F) of the temperature control switch?

—

Go to 

Step 3

Go to 

Step 2

2

Repair or replace the air mix door or the link unit.

Is the action complete?

—

Varify repair

—

3

Is there continuity between the harness side connector
terminal No.C43–3 and No.I20–11?

—

Go to 

Step 5

Go to 

Step 4

4

Repair an open circuit between terminal No.C43–3 and
No.I20–11.

Is the action complete?

—

Go to 

Step 3

—

5

Is there continuity between harness side connector
terminal No.C43–7 and No.I20–5?

—

Go to 

Step 7

Go to 

Step 6

6

Repair an open circuit between terminal No.C43–7 and
No.I20–5.

Is the action complete?

—

Go to 

Step 5

—

7

Is there continuity between the harness side connector
terminal No.C43–2 and No.I20–15?

—

Go to 

Step 9

Go to 

Step 8

8

Repair an open circuit between terminal No.C43–2 and
No.I20–15.

Is the action complete?

—

Go to 

Step 7

—

9

Is sum of the voltage between the following chassis
harness side connector terminals approximately 5V?
No.I20–15 and No.I20–5, No.I20–5 and No.I20–11

—

Go to 

Step 11

Go to 

Step 10

10

Replace the actuator.

Is the action complete?

—

Verify repair

—

11

Replace the auto air conditioner control unit.

Is the action complete?

—

Verify repair

—

 

 

 

 

 

 

 

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