Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Instruction - page 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

Рассказать друзьям