Workshop Manual

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 —