NO.3 AIR INTAKE MODE DOES NOT CHANGE [MANUAL AIR CONDITIONER]

3	Air intake mode does not change.
DESCRIPTION	• Air intake mode does not change when switching REC/FRESH mode.
POSSIBLE CAUSE	• Malfunction in air intake actuator • Malfunction in air intake door

• When performing an asterisked (*) troubleshooting inspection, shake the wiring harness and connectors while performing the inspection to discover whether poor contact points are the cause of any intermittent malfunctions. If there is a problem, check to make sure connectors, terminals and wiring harnesses are connected correctly and undamaged.

STEP	INSPECTION	ACTION
1*	INSPECT TO SEE WHETHER MALFUNCTION (LACK OF CONTINUITY) IS IN AIR INTAKE ACTUATOR, WIRING HARNESS (BETWEEN CLIMATE CONTROL UNIT AND AIR INTAKE ACTUATOR) OR ELSEWHERE • Switch the ignition to ON. • Test voltages at the following terminals of climate control unit. ― Terminal G (20-pin, ACTR POWER) ― Terminal I (20-pin, ACTR SIGNAL) ― Terminal H (20-pin, GND) (See CLIMATE CONTROL UNIT INSPECTION [MANUAL AIR CONDITIONER].) • Are voltages okay?	Yes	Go to the next step.
No	Go to Step 3.
2*	INSPECT TO SEE WHETHER MALFUNCTION (LACK OF CONTINUITY) IS IN AIR INTAKE ACTUATOR OR WIRING HARNESS (BETWEEN CLIMATE CONTROL UNIT AND AIR INTAKE ACTUATOR) • Test voltages at the following terminals of air intake actuator. ― Terminal A ― Terminal C • Are voltages as shown below? ― Terminal A: approx. 0.5 V during RECIRCULATE and approx. 10 V during FRESH ― Terminal C: approx. 10 V during RECIRCULATE and approx. 0.5 V during FRESH	Yes	Replace air intake actuator, then go to Step 8. (See AIR INTAKE ACTUATOR REMOVAL/INSTALLATION [MANUAL AIR CONDITIONER].)
No	Repair wiring harness between climate control unit and air intake actuator, then go to Step 8.
3	INSPECT TO SEE WHETHER MALFUNCTION IS IN AIR INTAKE ACTUATOR OR ELSEWHERE • Disconnect air intake actuator connector. • Test voltages at the following terminals of climate control unit. ― Terminal G (20-pin, ACTR POWER) ― Terminal I (20-pin, ACTR SIGNAL) (See CLIMATE CONTROL UNIT INSPECTION [MANUAL AIR CONDITIONER].) • Are voltages okay?	Yes	Inspect air intake actuator, then go to Step 8.
No	Go to the next step.
4	INSPECT TO SEE WHETHER MALFUNCTION IS IN WIRING HARNESS (SHORT TO B+ BETWEEN CLIMATE CONTROL UNIT AND AIR INTAKE ACTUATOR) OR ELSEWHERE • Disconnect climate control unit connector. • Test voltages at the following terminals of climate control unit. ― Terminal G (20-pin, ACTR POWER) ― Terminal I (20-pin, ACTR SIGNAL) • Are voltages approx. 0 V?	Yes	Go to the next step.
No	Repair wiring harness between climate control unit and air intake actuator, then go to Step 8.
5	INSPECT TO SEE WHETHER MALFUNCTION IS IN WIRING HARNESS (SHORT TO GROUND BETWEEN CLIMATE CONTROL UNIT AND AIR INTAKE ACTUATOR) OR ELSEWHERE • Switch the ignition to off. • Inspect for continuity at the following terminals between climate control unit and ground. ― Terminal G (20-pin, ACTR POWER) ― Terminal I (20-pin, ACTR SIGNAL) • Is there continuity?	Yes	Repair wiring harness between climate control unit and air intake actuator, then go to Step 8.
No	Go to the next step.
6	INSPECT AIR INTAKE LINK • Inspect air intake links. ― Is there grease on link? ― Are links securely and properly installed? ― Are links free of obstructions and hindrances? • Are above items okay?	Yes	Go to the next step.
No	Apply grease to links. If any links are damaged, replace air intake actuator, then go to Step 8.
7	INSPECT TO SEE WHETHER MALFUNCTION IS IN CLIMATE CONTROL UNIT OR AIR INTAKE DOOR • Inspect blower unit air intake door. ― Is door free of obstructions, cracks, and damage? ― Are doors securely and properly installed? • Are above items okay?	Yes	Replace climate control unit, then go to the next step. (See CLIMATE CONTROL UNIT INSPECTION [MANUAL AIR CONDITIONER].)
No	Remove obstruction, or install doors in proper position. If any doors are cracked or damaged, replace them, then go to the next step.
8	CONFIRM THAT MALFUNCTION SYMPTOMS DO NOT RECUR AFTER REPAIR • Does air intake mode change smoothly?	Yes	Troubleshooting completed. Explain repairs to customer.
No	Recheck malfunction symptoms, then repeat from Step 1 if malfunction recurs.

STEP

INSPECTION

ACTION

INSPECT TO SEE WHETHER MALFUNCTION (LACK OF CONTINUITY) IS IN AIR INTAKE ACTUATOR, WIRING HARNESS (BETWEEN CLIMATE CONTROL UNIT AND AIR INTAKE ACTUATOR) OR ELSEWHERE

• Switch the ignition to ON.

• Test voltages at the following terminals of climate control unit.

― Terminal G (20-pin, ACTR POWER)

― Terminal I (20-pin, ACTR SIGNAL)

― Terminal H (20-pin, GND)

(See CLIMATE CONTROL UNIT INSPECTION [MANUAL AIR CONDITIONER].)

• Are voltages okay?

Yes

Go to the next step.

Go to Step 3.

INSPECT TO SEE WHETHER MALFUNCTION (LACK OF CONTINUITY) IS IN AIR INTAKE ACTUATOR OR WIRING HARNESS (BETWEEN CLIMATE CONTROL UNIT AND AIR INTAKE ACTUATOR)

• Test voltages at the following terminals of air intake actuator.

― Terminal A

― Terminal C

• Are voltages as shown below?

― Terminal A: approx. 0.5 V during RECIRCULATE and approx. 10 V during FRESH

― Terminal C: approx. 10 V during RECIRCULATE and approx. 0.5 V during FRESH

Yes

Replace air intake actuator, then go to Step 8.

(See AIR INTAKE ACTUATOR REMOVAL/INSTALLATION [MANUAL AIR CONDITIONER].)

Repair wiring harness between climate control unit and air intake actuator, then go to Step 8.

INSPECT TO SEE WHETHER MALFUNCTION IS IN AIR INTAKE ACTUATOR OR ELSEWHERE

• Disconnect air intake actuator connector.

• Test voltages at the following terminals of climate control unit.

― Terminal G (20-pin, ACTR POWER)

― Terminal I (20-pin, ACTR SIGNAL)

(See CLIMATE CONTROL UNIT INSPECTION [MANUAL AIR CONDITIONER].)

• Are voltages okay?

Yes

Inspect air intake actuator, then go to Step 8.

Go to the next step.

INSPECT TO SEE WHETHER MALFUNCTION IS IN WIRING HARNESS (SHORT TO B+ BETWEEN CLIMATE CONTROL UNIT AND AIR INTAKE ACTUATOR) OR ELSEWHERE

• Disconnect climate control unit connector.

• Test voltages at the following terminals of climate control unit.

― Terminal G (20-pin, ACTR POWER)

― Terminal I (20-pin, ACTR SIGNAL)

• Are voltages approx. 0 V?

Yes

Go to the next step.

Repair wiring harness between climate control unit and air intake actuator, then go to Step 8.

INSPECT TO SEE WHETHER MALFUNCTION IS IN WIRING HARNESS (SHORT TO GROUND BETWEEN CLIMATE CONTROL UNIT AND AIR INTAKE ACTUATOR) OR ELSEWHERE

• Switch the ignition to off.

• Inspect for continuity at the following terminals between climate control unit and ground.

― Terminal G (20-pin, ACTR POWER)

― Terminal I (20-pin, ACTR SIGNAL)

• Is there continuity?

Yes

Repair wiring harness between climate control unit and air intake actuator, then go to Step 8.

Go to the next step.

INSPECT AIR INTAKE LINK

• Inspect air intake links.

― Is there grease on link?

― Are links securely and properly installed?

― Are links free of obstructions and hindrances?

• Are above items okay?

Yes

Go to the next step.

Apply grease to links. If any links are damaged, replace air intake actuator, then go to Step 8.

INSPECT TO SEE WHETHER MALFUNCTION IS IN CLIMATE CONTROL UNIT OR AIR INTAKE DOOR

• Inspect blower unit air intake door.

― Is door free of obstructions, cracks, and damage?

― Are doors securely and properly installed?

• Are above items okay?

Yes

Replace climate control unit, then go to the next step.

(See CLIMATE CONTROL UNIT INSPECTION [MANUAL AIR CONDITIONER].)

Remove obstruction, or install doors in proper position. If any doors are cracked or damaged, replace them, then go to the next step.

CONFIRM THAT MALFUNCTION SYMPTOMS DO NOT RECUR AFTER REPAIR

• Does air intake mode change smoothly?

Yes

Troubleshooting completed. Explain repairs to customer.

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