Workshop Manual

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
1A–117
Chart A: Magnetic Clutch Does Not work (Cont’d)
Step NoYesValue(s)Action
17 Is the battery voltage applied between the harness side
connector terminal No.I19–14 and ground?
— Go to Step 19 Go to Step 18
18 Repair an open circuit between terminal No.X8–3 and
I19–14.
Is the action complete?
— Go to Step 17 —
19 Is there continuity between the harness side connector
terminal No.X8–1 and PCM (F45)?
— Go to Step 21 Go to Step 20
20 Repair an open circuit between terminal No.X8–1 and
PCM (F45).
Is the action complete?
— Go to Step 19 —
21 Is there continuity between the harness side connector
terminal No.X2–4 and PCM (F4)?
— Go to Step 23 Go to Step 22
22 Repair on open circuit between terminal No.X2–4 and
PCM (F4).
Is the action complete?
— Go to Step 21 —
23 Is there continuity between the harness side connector
terminal No.I20–4 and ground?
— Go to Step 25 Go to Step 24
24 Repair an open circuit between terminal No.I20–4 and
PCM (S47).
Is the action complete?
— Go to Step 23 —
25 1. Connect the connector of PCM.
2. Connect the connector terminal No.I19–14 which is
on the harness side on the auto air conditioner
control unit.
Magnetic clutch works?
—
Replace the
auto air
conditioner
control unit
Replace the
PCM
CAUTION: There are conditions which air
conditioner system dose not operate except trouble
as follows.
1. The throttle is griater than 90%.
2. The ignition voltage is below 10.5 volts.
3. The engine speed greater than 4500 RPM for 5
seconds or 5400 RPM.
4. The engine coolant temperature (ECT) is greater
than 125°C (257°F).
5. The intake air temperature (IAT) is less than 5°C
(41°F).
6. The power steering pressure switch signals a
high pressure condition.