Door Mirror Defogger Power Supply Circuit Check

Check if the following fuse in IPDM E/R is blown.

OK or NG 

OK: GO TO 2.

NG: If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.

1. Turn ignition switch ON.
2. Check voltage between IPDM E/R connector and ground.
   VOLTAGE SPECIFICATION CHART
   
   

   Connector	Terminals		Condition	Voltage (V) (Approx.)
   	(+)	(-)
   E120	23	Ground	Rear window defogger switch ON	Battery voltage
   			Rear window defogger switch OFF	0

   Fig 1: Checking Voltage Between IPDM E/R Connector And Ground

   

OK or NG 

OK: GO TO 3.

NG: Replace IPDM E/R. Refer to "REMOVAL AND INSTALLATION OF IPDM E/R ".

1. Turn ignition switch OFF.
2. Disconnect IPDM E/R and door mirror LH or RH.
3. Check continuity between IPDM E/R connector and door mirror LH or RH connector.
   TERMINAL CONTINUITY REFERENCE CHART
   
   

   Connector	Terminal	Connector	Terminal	Continuity
   A		B
   IPDM E/R: E120	23	Door mirror: D4 (LH) or D107 (RH)	1	Yes

4. Check continuity between IPDM E/R and ground.
   TERMINAL CONTINUITY REFERENCE CHART
   
   

   A		Ground	Continuity
   Connector	Terminal
   IPDM E/R: E120	23		No

   Fig 2: Checking Continuity Between IPDM E/R And Door Mirror LH Or RH Connector

   

OK or NG 

OK: GO TO 4.

NG: Repair or replace harness.

Check continuity between each door mirror connector D4 (LH) or D107 (RH) terminal 6 and ground.

6 - Ground : Continuity should exist. 

OK or NG 

OK: GO TO 5.

NG: Repair or replace harness.

Fig 3: Checking Continuity Between Door Mirror Connector D4 (LH) Or D107 (RH) Terminal 6 And Ground

Check continuity between each door mirror LH or RH terminals 1 and 6.

1 - 6 : Continuity should exist. 

OK or NG 

OK: Repair or replace harness.

NG: Replace malfunctioning door mirror LH or RH. Refer to "DOOR MIRROR ASSEMBLY ".

Fig 4: Checking Continuity Between Door Mirror LH Or RH Terminals 1 And 6