Inspection Flow

WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - TEMPERATURE INCREASE
1. Blower must be on (1, 2, 3, 4).
2. Turn the temperature control dial clockwise to maximum heat.
3. Check for hot air at discharge air outlets.
  GO TO 2.
CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - TEMPERATURE DECREASE
1. Turn the temperature control dial counterclockwise to maximum cold.
2. Check for cold air at discharge air outlets.
Can a symptom be duplicated?

YES: GO TO 4.

NO: GO TO 3.
PERFORM COMPLETE OPERATIONAL CHECK
Perform a complete operational check and check for any symptoms. Refer to "OPERATIONAL CHECK (FRONT) ".

Can a symptom be duplicated?

YES: Refer to "SYMPTOM TABLE ".

NO: System OK.
CHECK FOR SERVICE BULLETINS
Check for any service bulletins.

GO TO 5.
CHECK AIR MIX DOOR OPERATION
Check and verify air mix door mechanism for smooth operation from maximum cold to maximum heat in each mode.

OK or NG

OK: GO TO 6.

NG: Repair as necessary.
CHECK THE AIR MIX DOOR MOTOR PBR CIRCUIT
Perform diagnostic procedure for the air mix door motor. Refer to "AIR MIX DOOR MOTOR CIRCUIT ".

OK or NG

OK: GO TO 7.

NG: Repair PBR circuit or replace air mix door motor. Refer to "AIR MIX DOOR MOTOR ".
RECHECK FOR ANY SYMPTOMS
Perform a complete operational check for any symptoms. Refer to "OPERATIONAL CHECK (FRONT) ".

Does another symptom exist?

YES: Refer to "SYMPTOM TABLE ".

NO: Replace front air control. Refer to "FRONT AIR CONTROL ".