Speaker Circuit [11/2016 - ]: Procedure

1. Enter the "System Check Mode" screen. Refer to Check Speaker in Operation Check.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Refer to OPERATION CHECK [11/2016 - ]

2. Perform the operation check above and determine the speaker that is not operating.

   Result

   Not Operating Speaker	Proceed to
   Front No. 1 speaker assembly or front No. 2 speaker assembly	A
   Rear speaker assembly	B

   HINT: 

   If sound cannot be heard from any speaker, inspect all of them.

Result:  5

B 

See step  5

Result:  1

A 

See step  2

1. Disconnect the F69 radio and display receiver assembly connector.
2. Disconnect the H3 and I3 front No. 1 speaker assembly connectors.
3. Disconnect the G1 and G5 front No. 2 speaker assembly connectors.
4. Measure the resistance according to the value (s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F69-1 (FR+) - G1-4 (+)	Always	Below 1 Ω
   F69-5 (FR-) - G1-2 (-)	Always	Below 1 Ω
   F69-2 (FL+) - G5-4 (+)	Always	Below 1 Ω
   F69-6 (FL-) - G5-2 (-)	Always	Below 1 Ω
   H3-1 - G1-3 (+)	Always	Below 1 Ω
   H3-2 - G1-1 (-)	Always	Below 1 Ω
   I3-1 - G5-3 (+)	Always	Below 1 Ω
   I3-2 - G5-1 (-)	Always	Below 1 Ω
   F69-1 (FR+) or G1-4 (+) - Body ground	Always	10 kΩ or higher
   F69-5 (FR-) or G1-2 (-) - Body ground	Always	10 kΩ or higher
   F69-2 (FL+) or G5-4 (+) - Body ground	Always	10 kΩ or higher
   F69-6 (FL-) or G5-2 (-) - Body ground	Always	10 kΩ or higher
   H3-1 or G1-3 (+) - Body ground	Always	10 kΩ or higher
   H3-2 or G1-1 (-) - Body ground	Always	10 kΩ or higher
   I3-1 or G5-3 (+) - Body ground	Always	10 kΩ or higher
   I3-2 or G5-1 (-) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result:  2

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result:  1

OK 

See step  3

1. Remove the front No. 1 speaker assembly.

   Refer to REMOVAL [12/2013 - ]

2. Inspect the front No. 1 speaker assembly.

   Refer to INSPECTION [12/2013 - ]

   Result

   Proceed to
   OK
   NG

Result:  2

NG 

REPLACE FRONT NO. 1 SPEAKER ASSEMBLY. Refer to  REMOVAL [12/2013 - ] 

Result:  1

OK 

See step  4

1. Remove the front No. 2 speaker assembly.

   Refer to REMOVAL [12/2013 - ]

2. Inspect the front No. 2 speaker assembly.

   Refer to INSPECTION [11/2016 - ]

   OK

   Malfunction disappears.

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

END 

Result:  3

NG 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [11/2016 - ] 

1. Disconnect the F70 radio and display receiver assembly connector.
2. Disconnect the K4 and J4 rear speaker assembly connectors.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F70-1 (RR+) - J4-1	Always	Below 1 Ω
   F70-3 (RR-) - J4-2	Always	Below 1 Ω
   F70-2 (RL+) - K4-1	Always	Below 1 Ω
   F70-6 (RL-) - K4-2	Always	Below 1 Ω
   F70-1 (RR+) or J4-1 - Body ground	Always	10 kΩ or higher
   F70-3 (RR-) or J4-2 - Body ground	Always	10 kΩ or higher
   F70-2 (RL+) or K4-1 - Body ground	Always	10 kΩ or higher
   F70-6 (RL-) or K4-2 - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result:  2

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result:  1

OK 

See step  6

1. Remove the rear speaker assembly.

   Refer to REMOVAL [12/2013 - ]

2. Inspect the rear speaker assembly.

   Refer to INSPECTION [12/2013 - ]

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [11/2016 - ] 

Result:  2

NG 

REPLACE REAR SPEAKER ASSEMBLY. Refer to  REMOVAL [12/2013 - ]