Toyota Camry owners & service manuals

Toyota Camry (XV70): Speaker Output Short (B15C3)

Toyota Camry Repair Manual XV70 (2018-2024) / Audio, Visual, Telematics / Navigation / Multi Info Display / Navigation System / Speaker Output Short (B15C3)

DESCRIPTION

This DTC is stored when a malfunction occurs in the speakers.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B15C3

Speaker Output Short

A short is detected in the speaker output circuit
  • Harness or connector
  • Speaker
  • Stereo component amplifier assembly
  • DCM (telematics transceiver)*
  • *: w/ Manual (SOS) Switch

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.

    Click here

  • When replacing the radio and display receiver assembly, always replace it with a new one. If a radio and display receiver assembly which was installed to another vehicle is used, the following may occur:
    • A communication malfunction DTC may be stored.
    • The radio and display receiver assembly may not operate normally.
  • Before replacing the DCM (telematics transceiver), refer to Registration.

    Click here

PROCEDURE

1.

CHECK MODEL

(a) Choose the model to be inspected.

Result

Proceed to

w/ Manual (SOS) Switch

A

w/o Manual (SOS) Switch

B
B

GO TO STEP 5

A

2.

CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY, DCM (TELEMATICS TRANSCEIVER) OR SPEAKERS - BODY GROUND)

(a) Disconnect the K14 stereo component amplifier assembly connector.

(b) Disconnect the K139 DCM (telematics transceiver) connector.

(c) Disconnect the K95 front No. 2 speaker assembly LH connector.

(d) Disconnect the K109 and K110 front No. 3 speaker assembly connectors.

(e) Disconnect the P7 and Q7 rear speaker assembly connectors.

(f) Disconnect the R1 rear stereo component speaker assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

K14-14 (TWR+) or K139-1 (SPI+) - Body ground

Always

10 kΩ or higher

K14-29 (TWR-) or K139-2 (SPI-) - Body ground

Always

10 kΩ or higher

K14-12 (TWL+) or K95-2 (TWL+) - Body ground

Always

10 kΩ or higher

K14-27 (TWL-) or K95-1 (TWL-) - Body ground

Always

10 kΩ or higher

K14-15 (FR+) or K109-4 (+TW) - Body ground

Always

10 kΩ or higher

K14-30 (FR-) or K109-2 (-TW) - Body ground

Always

10 kΩ or higher

K14-13 (FL+) or K110-4 (+TW) - Body ground

Always

10 kΩ or higher

K14-28 (FL-) or K110-2 (-TW) - Body ground

Always

10 kΩ or higher

K14-11 (RR+) or P7-2 - Body ground

Always

10 kΩ or higher

K14-26 (RR-) or P7-1 - Body ground

Always

10 kΩ or higher

K14-9 (RL+) or Q7-2 - Body ground

Always

10 kΩ or higher

K14-24 (RL-) or Q7-1 - Body ground

Always

10 kΩ or higher

K14-10 (WF1+) or R1-4 (WF1+) - Body ground

Always

10 kΩ or higher

K14-25 (WF1-) or R1-3 (WF1-) - Body ground

Always

10 kΩ or higher

K14-8 (WF2+) or R1-2 (WF2+) - Body ground

Always

10 kΩ or higher

K14-23 (WF2-) or R1-1 (WF2-) - Body ground

Always

10 kΩ or higher
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

3.

CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) OR SPEAKER - BODY GROUND)

(a) Disconnect the K139 DCM (telematics transceiver) connector.

(b) Disconnect the K94 front No. 2 speaker assembly RH connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

K139-3 (SPO+) or K94-2 (TWR+) - Body ground

Always

10 kΩ or higher

K139-4 (SPO-) or K94-1 (TWR-) - Body ground

Always

10 kΩ or higher
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

4.

INSPECT DCM (TELEMATICS TRANSCEIVER)

(a) Remove the DCM (telematics transceiver).

Click here

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 (SPI+) - 3 (SPO+)

Always

Below 1 Ω

2 (SPI-) - 4 (SPO-)

Always

Below 1 Ω

1 (SPI+) - 2 (SPI-)

Always

10 kΩ or higher

3 (SPO+) - 4 (SPO-)

Always

10 kΩ or higher

1 (SPI+) or 3 (SPO+) - Body ground

Always

10 kΩ or higher

2 (SPI-) or 4 (SPO-) - Body ground

Always

10 kΩ or higher

*a

Component without harness connected

(DCM (Telematics Transceiver))
OK

GO TO STEP 6

NG

REPLACE DCM (TELEMATICS TRANSCEIVER)

5.

CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY OR SPEAKERS - BODY GROUND)

(a) Disconnect the K14 stereo component amplifier assembly connector.

(b) Disconnect the K109 and K110 front No. 3 speaker assembly connectors.

(c) Disconnect the K94 and K95 front No. 2 speaker assembly connectors.

(d) Disconnect the P7 and Q7 rear speaker assembly connectors.

(e) Disconnect the R1 rear stereo component speaker assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

K14-15 (FR+) or K109-4 (+TW) - Body ground

Always

10 kΩ or higher

K14-30 (FR-) or K109-2 (-TW) - Body ground

Always

10 kΩ or higher

K14-13 (FL+) or K110-4 (+TW) - Body ground

Always

10 kΩ or higher

K14-28 (FL-) or K110-2 (-TW) - Body ground

Always

10 kΩ or higher

K14-14 (TWR+) or K94-2 (TWR+) - Body ground

Always

10 kΩ or higher

K14-29 (TWR-) or K94-1 (TWR-) - Body ground

Always

10 kΩ or higher

K14-12 (TWL+) or K95-2 (TWL+) - Body ground

Always

10 kΩ or higher

K14-27 (TWL-) or K95-1 (TWL-) - Body ground

Always

10 kΩ or higher

K14-11 (RR+) or P7-2 - Body ground

Always

10 kΩ or higher

K14-26 (RR-) or P7-1 - Body ground

Always

10 kΩ or higher

K14-9 (RL+) or Q7-2 - Body ground

Always

10 kΩ or higher

K14-24 (RL-) or Q7-1 - Body ground

Always

10 kΩ or higher

K14-10 (WF1+) or R1-4 (WF1+) - Body ground

Always

10 kΩ or higher

K14-25 (WF1-) or R1-3 (WF1-) - Body ground

Always

10 kΩ or higher

K14-8 (WF2+) or R1-2 (WF2+) - Body ground

Always

10 kΩ or higher

K14-23 (WF2-) or R1-1 (WF2-) - Body ground

Always

10 kΩ or higher
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

6.

CHECK HARNESS AND CONNECTOR (FRONT NO. 1 SPEAKER ASSEMBLY OR FRONT NO. 3 SPEAKER ASSEMBLY - BODY GROUND)

(a) Disconnect the N1 and O1 front No. 1 speaker assembly connectors.

(b) Disconnect the K109 and K110 front No. 3 speaker assembly connectors.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

N1-2 or K109-3 (+) - Body ground

Always

10 kΩ or higher

N1-1 or K109-1 (-) - Body ground

Always

10 kΩ or higher

O1-2 or K110-3 (+) - Body ground

Always

10 kΩ or higher

O1-1 or K110-1 (-) - Body ground

Always

10 kΩ or higher
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

7.

INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

(a) Remove the front No. 1 speaker assembly.

Click here

(b) Inspect the front No. 1 speaker assembly.

Click here

NG

REPLACE FRONT NO. 1 SPEAKER ASSEMBLY

OK

8.

INSPECT FRONT NO. 2 SPEAKER ASSEMBLY

(a) Remove the front No. 2 speaker assembly.

Click here

(b) Inspect the front No. 2 speaker assembly.

Click here

NG

REPLACE FRONT NO. 2 SPEAKER ASSEMBLY

OK

9.

INSPECT REAR SPEAKER ASSEMBLY

(a) Remove the rear speaker assembly.

Click here

(b) Inspect the rear speaker assembly.

Click here

NG

REPLACE REAR SPEAKER ASSEMBLY

OK

10.

INSPECT REAR STEREO COMPONENT SPEAKER ASSEMBLY

(a) Remove the rear stereo component speaker assembly.

Click here

(b) Inspect the rear stereo component speaker assembly.

Click here

NG

REPLACE REAR STEREO COMPONENT SPEAKER ASSEMBLY

OK

11.

REPLACE FRONT NO. 3 SPEAKER ASSEMBLY

(a) Remove the front No. 3 speaker assembly.

Click here

(b) Inspect the front No. 3 speaker assembly.

Click here

(c) Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

(d) Recheck for DTCs and check that no DTCs are output.

Body Electrical > Navigation System > Trouble Codes

OK:

No DTCs are output.

OK

END
NG

REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY

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