Navigation System (For Hdd) Speaker Circuit

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK SPEAKER

INSPECT FRONT NO. 2 SPEAKER ASSEMBLY

CHECK HARNESS AND CONNECTOR (FRONT NO. 1 SPEAKER - FRONT NO. 2 SPEAKER)

CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER - FRONT NO. 2 SPEAKER)

INSPECT FRONT NO. 2 SPEAKER ASSEMBLY

CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER - REAR NO. 1 SPEAKER)

INSPECT REAR NO. 1 SPEAKER ASSEMBLY

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

1. Check that the speakers sound.
   

   Result

   Result	Proceed to
   Front No. 1 speakers do not operate	A
   Front No. 2 speakers do not operate	B
   Rear No. 1 speakers do not operate	C
   All speakers do not operate	D

1. Disconnect the H6*1 and/or G7*2 speaker connector.
   

   1. *1: for LH
      
   2. *2: for RH
      

2. Measure the resistance according to the value(s) in the table below.
   
   

   Standard Resistance:

   for LH:

   Tester Connection	Condition	Specified Condition
   1 (-) - 2 (TWL-)	Always	Below 1 Ω
   3 (+) - 4 (TWL+)	Always	Below 1 Ω

   for RH:

   Tester Connection	Condition	Specified Condition
   1 (-) - 2 (TWR-)	Always	Below 1 Ω
   3 (+) - 4 (TWR+)	Always	Below 1 Ω

1. *1: for LH
   
2. *2: for RH
   

1. Disconnect the H1*1 and/or G1*2 speaker connector.
   

2. Disconnect the H6*1 and/or G7*2 speaker connector.
   

3. Measure the resistance according to the value(s) in the table below.
   
   

   Standard Resistance:

   for LH:

   Tester Connection	Condition	Specified Condition
   H1-1 - H6-3 (+)	Always	Below 1 Ω
   H1-1 - Body ground	Always	10 kΩ or higher
   H1-2 - H6-1 (-)	Always	Below 1 Ω
   H1-2 - Body ground	Always	10 kΩ or higher

   for RH:

   Tester Connection	Condition	Specified Condition
   G1-1 - G7-3 (+)	Always	Below 1 Ω
   G1-1 - Body ground	Always	10 kΩ or higher
   G1-2 - G7-1 (-)	Always	Below 1 Ω
   G1-2 - Body ground	Always	10 kΩ or higher

1. Disconnect the E52 navigation receiver assembly connector.
   

2. Disconnect the H6*1 and/or G7*2 speaker connector.
   

   1. *1: for LH
      
   2. *2: for RH
      

3. Measure the resistance according to the value(s) in the table below.
   
   

   Standard Resistance:

   for LH:

   Tester Connection	Condition	Specified Condition
   E52-2 (FL+) - H6-4 (TWL+)	Always	Below 1 Ω
   E52-6 (FL-) - H6-2 (TWL-)	Always	Below 1 Ω
   E52-2 (FL+) - Body ground	Always	10 kΩ or higher
   E52-6 (FL-) - Body ground	Always	10 kΩ or higher

   for RH:

   Tester Connection	Condition	Specified Condition
   E52-1 (FR+) - G7-4 (TWR+)	Always	Below 1 Ω
   E52-5 (FR-) - G7-2 (TWR-)	Always	Below 1 Ω
   E52-1 (FR+) - Body ground	Always	10 kΩ or higher
   E52-5 (FR-) - Body ground	Always	10 kΩ or higher

1. Temporarily replace the speaker with a new or normally functioning one (RAV4_ACA30 RM0000014T700RX.html).
   

2. Check that the malfunction disappears.
   

   HINT:

   1. Connect all speaker connectors to the speakers.
      
   2. When there is a possibility that either the right or left front speaker is defective, inspect by interchanging the right one with the left one.
      

   Result

   Result	Proceed to
   Malfunction does not disappear	A
   Malfunction disappears	B

1. Disconnect the E53 navigation receiver assembly connector.
   

2. Disconnect the J2*1 and/or I2*2 speaker connector.
   

   1. *1: for LH
      
   2. *2: for RH
      

3. Measure the resistance according to the value(s) in the table below.
   
   

   Standard Resistance:

   for LH:

   Tester Connection	Condition	Specified Condition
   E53-2 (RL+) - J2-1	Always	Below 1 Ω
   E53-6 (RL-) - J2-2	Always	Below 1 Ω
   E53-2 (RL+) - Body ground	Always	10 kΩ or higher
   E53-6 (RL-) - Body ground	Always	10 kΩ or higher

   for RH:

   Tester Connection	Condition	Specified Condition
   E53-1 (RR+) - I2-1	Always	Below 1 Ω
   E53-3 (RR-) - I2-2	Always	Below 1 Ω
   E53-1 (RR+) - Body ground	Always	10 kΩ or higher
   E53-3 (RR-) - Body ground	Always	10 kΩ or higher

1. Disconnect the J2*1 and/or I2*2 speaker connector.
   

   1. *1: for LH
      
   2. *2: for RH
      

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   1 - 2	Always	4 Ω