WINDSHIELD FOGGED [FULL-AUTO AIR CONDITIONER]

id0703c1007100

DESCRIPTION

•  A/C compressor does not operate while airflow mode is in DEFROSTER or DEF/HEAT modes

•  Air intake mode does not change to FRESH while airflow mode is in DEFROSTER or DEF/HEAT modes

POSSIBLE CAUSE

•  A/C compressor malfunction

•  ROOM 15 A fuse malfunction

•  Open circuit in wiring harness between front climate control unit terminal 1U and positive battery terminal

•  Short to ground in wiring harness between front climate control unit terminal 1U and ROOM 15 A fuse

•  Air intake actuator malfunction

•  Front climate control unit connector malfunction

•  Air intake actuator malfunction

•  Front climate control unit malfunction

•  Open circuit or short to ground or short to power supply in wiring harness between the following terminals:

―  Front climate control unit terminal 1C — air intake actuator terminal C

―  Front climate control unit terminal 1D — air intake actuator terminal B

―  Front climate control unit terminal 1Q — air intake actuator terminal A

―  Front climate control unit terminal 2H — air intake actuator terminal D

―  Front climate control unit terminal 2F — air intake actuator terminal E

•  Short to ground or short to power supply in wiring harness between the following terminals:

―  Front climate control unit terminal 1C — driver-side front air mix actuator terminal C

―  Front climate control unit terminal 1Q — driver-side front air mix actuator terminal A

―  Front climate control unit terminal 1C — passenger-side front air mix actuator terminal A

―  Front climate control unit terminal 1Q — passenger-side front air mix actuator terminal C

―  Front climate control unit terminal 1C — front airflow mode actuator terminal C

―  Front climate control unit terminal 1Q — front airflow mode actuator terminal A

―  Front climate control unit terminal 1C — solar radiation sensor terminal A

•  Short to power supply in wiring harness between the following terminals:

―  Front climate control unit terminal 1Q — cabin temperature sensor terminal B

―  Front climate control unit terminal 1Q — evaporator temperature sensor terminal A

•  Air intake link malfunction

―  Lack of grease

―  Bad installation

•  Air intake door malfunction

―  Bad installation

―  Damage

Diagnostic Procedure

Step

Inspection

Action

1

VERIFY THAT THERE IS COOL AIRFLOW

•  Switch the A/C switch ON.

•  Set the airflow volume control dial to 1 or more.

•  Is there cool airflow from the vent?

Yes

Go to the next step.

No

Go to the following malfunction symptom item.

(See NO COOL AIRFLOW FROM VENT [FULL-AUTO AIR CONDITIONER].)

2

PERFORM CLIMATE CONTROL UNIT DTC INSPECTION

•  Perform the climate control unit DTC inspection using the M-MDS.
(See DTC DISPLAY [CLIMATE CONTROL UNIT (FULL-AUTO AIR CONDITIONER)].)

•  Are any DTCs displayed?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [CLIMATE CONTROL UNIT (FULL-AUTO AIR CONDITIONER)].)

No

Go to the next step.

3

INSPECT AIR INTAKE LINK PART

•  Inspect the air intake actuator, air intake link for the following items.

―  Is grease on link?

―  Are links securely and properly installed?

―  Are links free of obstructions and hindrances?

•  Are the above items normal?

Yes

Inspect the air intake door for the following items.

•  Verify if there is no abnormal noise, cracks, or damage.

•  Are doors securely and properly installed?

If there is foreign matter, remove it or securely install the air intake door to the correct position.

If the air intake door is cracked or damaged, replace the air intake door.

Go to the next step.

No

Apply grease or securely install to the correct positions.

If there is a malfunction in the air intake link, replace the air intake link.

(See BLOWER UNIT DISASSEMBLY/ASSEMBLY.)

Go to the next step.

4

VERIFY THAT MALFUNCTION SYMPTOM DOES NOT RECUR AFTER REPAIR

•  Does the malfunction symptom recur?

Yes

Recheck malfunction symptoms, then repeat from Step 1 if the malfunction recurs.

No

Troubleshooting completed.

Explain repairs to customer.

Step	Inspection		Action
1	VERIFY THAT THERE IS COOL AIRFLOW • Switch the A/C switch ON. • Set the airflow volume control dial to 1 or more. • Is there cool airflow from the vent?	Yes	Go to the next step.
1		No	Go to the following malfunction symptom item. (See NO COOL AIRFLOW FROM VENT [FULL-AUTO AIR CONDITIONER].)
2	PERFORM CLIMATE CONTROL UNIT DTC INSPECTION • Perform the climate control unit DTC inspection using the M-MDS. (See DTC DISPLAY [CLIMATE CONTROL UNIT (FULL-AUTO AIR CONDITIONER)].) • Are any DTCs displayed?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [CLIMATE CONTROL UNIT (FULL-AUTO AIR CONDITIONER)].)
2		No	Go to the next step.
3	INSPECT AIR INTAKE LINK PART • Inspect the air intake actuator, air intake link for the following items. ― Is grease on link? ― Are links securely and properly installed? ― Are links free of obstructions and hindrances? • Are the above items normal?	Yes	Inspect the air intake door for the following items. • Verify if there is no abnormal noise, cracks, or damage. • Are doors securely and properly installed? If there is foreign matter, remove it or securely install the air intake door to the correct position. If the air intake door is cracked or damaged, replace the air intake door. Go to the next step.
3		No	Apply grease or securely install to the correct positions. If there is a malfunction in the air intake link, replace the air intake link. (See BLOWER UNIT DISASSEMBLY/ASSEMBLY.) Go to the next step.
4	VERIFY THAT MALFUNCTION SYMPTOM DOES NOT RECUR AFTER REPAIR • Does the malfunction symptom recur?	Yes	Recheck malfunction symptoms, then repeat from Step 1 if the malfunction recurs.
4		No	Troubleshooting completed. Explain repairs to customer.