Rear Blower Switch (Rear) Circuit

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM:

Rear blower motor does not rotate when rear blower switch (front) is set to REAR position and the rear blower switch (rear) is set at 1-4 speed.

CHECK REAR BLOWER MOTOR OPERATION
Blower motor rotates normally when rear blower control dial (front) is set at 1-4 speed.

OK or NG
- OK: GO TO 2.
- NG: Refer to "TROUBLE DIAGNOSIS PROCEDURE FOR REAR BLOWER MOTOR (1-4 SPEED) ".
CHECK REAR BLOWER SWITCH (FRONT)
Refer to "REAR BLOWER SWITCH (FRONT) ".

OK or NG
- OK: GO TO 3.
- NG: Replace rear blower switch (front).
CHECK REAR AIR CONTROL
Refer to "REAR BLOWER SWITCH (REAR) CIRCUIT ".

OK or NG
- OK: GO TO 4.
- NG: Replace rear blower switch (rear). Refer to "REAR AIR CONTROL ".
CHECK CIRCUIT CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect rear blower switch (front) connector and rear air control connector.
3. Check continuity between rear blower switch (front) harness connector M52 terminal 2 (BR) and rear blower switch (rear) harness connector R208 terminal 10 (BR).
  - 2-10: Continuity should exist.
OK or NG
- OK: Inspection End.
- NG: Repair harness or connector.
Fig 1: Checking Continuity Between Rear Blower Switch (Front) Harness Connector M52 Terminal 2 And Rear Blower Switch (Rear) Harness Connector R208 Terminal 10
Courtesy of NISSAN MOTOR CO., U.S.A.