Trouble Diagnosis Procedure

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

CHECK REAR AIR CONTROL (FRONT) POWER SUPPLY
1. Disconnect rear air control (front) harness connector.
2. Turn ignition switch ON.
3. Check voltage between rear air control (front) harness connector R2 terminal 10 and ground.
  Battery voltage should exist .
  
  Is the inspection result normal?
  
  YES: GO TO 2.
  
  NO: Repair harness or connector.
  
  Fig 1: Checking Voltage Between Rear Air Control (Front) Harness Connector R2 Terminal 10 And Ground
  Courtesy of NISSAN NORTH AMERICA, INC.

CHECK REAR AIR CONTROL (FRONT) FRONT AUX BLOWER POT REFERENCE VOLTAGE

Disconnect rear air control (front) harness connector.
Turn ignition switch ON.

Check voltage between rear air control (front) harness connector R2 terminal 6 and ground.

Connector	Terminals		Voltage (Approx.)
Connector	(+)	(-)	Voltage (Approx.)
Rear air control (front): R2	6	Ground	5V

Fig 2: Checking Voltage Between Rear Air Control (Front) Harness Connector R2 Terminal 6 And Ground

Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES: GO TO 3.

NO: Repair harness or connector.

CHECK REAR AIR CONTROL (FRONT) GROUND CIRCUIT
Check continuity between rear air control (front) harness connector R2 terminal 1 and ground.

Continuity should exist .

Is the inspection result normal?

YES: Replace A/C auto amp. Refer to "REMOVAL AND INSTALLATION ".

NO: Repair harness or connector.

Fig 3: Checking Continuity Between Rear Air Control (Front) Harness Connector R2 Terminal 1 And Ground
Courtesy of NISSAN NORTH AMERICA, INC.