NO.4 IMPROPER AIR CIRCULATION AND/OR NO AIR CIRCULATION. [5R55S]

id070304804500

4

Improper air circulation and/or no air circulation.

DESCRIPTION

•  Malfunction is blower unit and/or climate control unit air circulation system.

POSSIBLE CAUSE

•  Malfunction in blower unit’s air intake crank, air intake link, air intake wire or wire clamp (Step 1, 2)

•  Climate control unit air intake wire or wire clamp malfunction (Step 3)

•  Blower unit air intake door malfunction (Step 4, 5)

Diagnostic procedure

STEP	INSPECTION		ACTION
1	INSPECT BLOWER UNIT COMPONENTS CONDITION • Inspect blower unit’s air crank, air intake link and wire clamp. ― Is there grease in air intake crank and air intake link? ― Are air intake crank and air intake link securely and proper positioned? ― Is wire clamp free of deformed? • Are above items okay?	Yes	Go to the next step.
1		No	Apply grease or install air intake crank and air intake link properly and securely, repair wire clamp, then go to Step 6.
2	INSPECT THAT INSTALLATION POSITION OF AIR INTAKE LINK • Is air intake wire positioned securely and correctly in relation to the blower unit’s air intake link?	Yes	Go to the next step.
2		No	Adjust air intake wire or install securely in correct position, then go to Step 6.
3	INSPECT CLIMATE CONTROL UNIT • Inspect climate control unit. ― Is air intake wire properly installed in correct direction in relation to the air intake lever of climate control unit? ― Is wire clamp free of deformation? • Are above items okay?	Yes	Go to the next step.
3		No	Install air intake wire securely in correct position, repair or replace wire clamp, then go to Step 6.
4	INSPECT BLOWER UNIT • Is there any foreign material or obstruction in blower unit’s intake door?	Yes	Remove obstruction, then go to Step 6.
4		No	Go to the next step.
5	INSPECT THAT INSTALLATION POSITION OF BLOWER UNIT’S INTAKE DOOR • Is blower unit’s air intake door securely and properly positioned?	Yes	Inspect air intake door for cracks or damage, then go to the next step.
5		No	Install air intake door securely in proper position, then go to the next step.
6	CONFIRM THAT MALFUNCTION SYMPTOMS DO NOT RECUR AFTER REPAIR • Does air circulate?	Yes	Troubleshooting completed. Explain repairs to customer.
6		No	Recheck malfunction symptoms, then repeat from Step 1 if malfunction recurs

4	Improper air circulation and/or no air circulation.
DESCRIPTION	• Malfunction is blower unit and/or climate control unit air circulation system.
POSSIBLE CAUSE	• Malfunction in blower unit’s air intake crank, air intake link, air intake wire or wire clamp (Step 1, 2) • Climate control unit air intake wire or wire clamp malfunction (Step 3) • Blower unit air intake door malfunction (Step 4, 5)