DTC B15C3: Speaker Output Short [08/2015 - ]: Procedure

1. Disconnect the I68 stereo component amplifier assembly connector.
2. Disconnect the J5 and K5 front No. 1 speaker assembly connectors.
3. Disconnect the I60 front No. 3 speaker assembly connector.
4. Disconnect the O19 and O20 rear No. 2 speaker assembly connectors.
5. Disconnect the O22 rear speaker assembly connector.
6. Disconnect the I84 and I2 front No. 2 speaker assembly connectors.
7. Measure the resistance between the stereo component amplifier assembly and body ground to check for a short circuit in the wire harness.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   I68-15 (FR+) - Body ground	Always	10 kΩ or higher
   I68-30 (FR-) - Body ground	Always	10 kΩ or higher
   I68-11 (FL+) - Body ground	Always	10 kΩ or higher
   I68-26 (FL-) - Body ground	Always	10 kΩ or higher
   I68-13 (CTR+) - Body ground	Always	10 kΩ or higher
   I68-28 (CTR-) - Body ground	Always	10 kΩ or higher
   I68-10 (SR+) - Body ground	Always	10 kΩ or higher
   I68-25 (SR-) - Body ground	Always	10 kΩ or higher
   I68-9 (SL+) - Body ground	Always	10 kΩ or higher
   I68-24 (SL-) - Body ground	Always	10 kΩ or higher
   I68-8 (WF1+) - Body ground	Always	10 kΩ or higher
   I68-23 (WF1-) - Body ground	Always	10 kΩ or higher
   I68-12 (TWR+) - Body ground	Always	10 kΩ or higher
   I68-27 (TWR-) - Body ground	Always	10 kΩ or higher
   I68-14 (TWL+) - Body ground	Always	10 kΩ or higher
   I68-29 (TWL-) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Remove the front No. 1 speaker assembly. Refer to REMOVAL [08/2015 - ] .
2. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   1 (+) - 2 (-)	Always	4.6 to 6.6 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Front No. 1 Speaker Assembly)

NG → See step   9 

OK: Go to next step 

1. Remove the front No. 3 speaker assembly. Refer to REMOVAL [08/2015 - ] .
2. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   1 - 2	Always	6.8 to 10.2 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Front No. 3 Speaker Assembly)

NG → See step   10 

OK: Go to next step 

1. Remove the rear No. 2 speaker assembly. Refer to REMOVAL [08/2015 - ] .
2. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   1 - 2	Always	6.8 to 10.2 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Rear No. 2 Speaker Assembly)

NG → See step   12 

OK: Go to next step 

1. Remove the rear speaker assembly. Refer to REMOVAL [08/2015 - ] .
2. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   1 - 2	Always	4.6 to 6.8 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Rear Speaker Assembly)

NG → See step   11 

OK: Go to next step 

1. Remove the front No. 2 speaker assembly. Refer to REMOVAL [08/2015 - ] .
2. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   4 - 3	Always	3.4 to 5.2 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Front No. 2 Speaker Assembly)

NG → See step   13 

OK: Go to next step 

1. Replace the front No. 2 speaker assembly with a new or known good one. Refer to REMOVAL [08/2015 - ] .
2. Clear the DTCs. Refer to DTC CHECK / CLEAR [08/2015 - ] .
3. Recheck for DTCs and check that no DTCs are output.

   OK

   No DTCs are output.

   HINT: 

   • Connect all the connectors to the front No. 2 speaker assemblies that were disconnected.
   • When there is a possibility that either the right or left front No. 2 speaker assembly is defective, inspect by interchanging the right one with the left one.
   • Perform the above inspection on both the LH and RH side.

NG → See step   8 

OK → END