Door Mirror Defogger Power Supply Circuit Check

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.

CHECK FUSE

Check if any of the following fuses for fuse block (J/B) are blown.

DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT FUSE CHECK

COMPONENT PARTS	AMPERE	FUSE NO.
IPDM E/R	15A	43

NOTE: Refer to "COMPONENT PARTS AND HARNESS CONNECTOR LOCATION ".

OK or NG

OK: GO TO 2.
NG: If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to "COMPONENT PARTS AND HARNESS CONNECTOR LOCATION ".

CHECK DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT 2
Check voltage between IPDM E/R connector and ground.

Fig 1: Door Mirror Defogger Connector E120 Terminal 23 Voltage Specification
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: GO TO 3.
2. NG: Replace IPDM E/R. Refer to "REMOVAL AND INSTALLATION OF IPDM E/R ".
Fig 2: Checking Voltage Between IPDM E/R Connector And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK DOOR MIRROR DEFOGGER CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R and door mirror LH or RH.
3. Check continuity between IPDM E/R connector E120 terminal 23 and door mirror connector D4 (LH) or D107 (RH) terminal 10.
  1. 23 (GR/W) - 10 (GR/W): Continuity should exist.
OK or NG
1. OK: GO TO 4.
2. NG: Repair or replace harness.
Fig 3: Checking Continuity Between IPDM E/R Connector E120 Terminal 23 And Door Mirror Connector D4 Or D107 Terminal 10
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK DOOR MIRROR DEFOGGER GROUND CIRCUIT
Check continuity between each door mirror connector D4 (LH) or D107 (RH) terminal 11 and ground.
1. 11 (B) - Ground: Continuity should exist.
OK or NG
1. OK: GO TO 5.
2. NG: Repair or replace harness.
Fig 4: Checking Continuity Between Each Door Mirror Connector D4 (LH) Or D107 (RH) Terminal 11 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK DOOR MIRROR DEFOGGER
1. Connect door mirror LH or RH.
2. Check continuity between each door mirror connector D4 (LH) or D107 (RH) terminals 10 and 11.
  1. 10 (GR/W) - 11 (B): Continuity should exist.
OK or NG
1. OK: Check the condition of the harness and the connector.
2. NG: Replace malfunctioning door mirror LH or RH. Refer to "DOOR MIRROR ASSEMBLY ".
Fig 5: Checking Continuity Between Each Door Mirror Connector D4 (LH) Or D107 (RH) Terminals 10 And 11
Courtesy of NISSAN MOTOR CO., U.S.A.