Audio And Visual System (w/o Navigation System with Multi-display)

AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (w/o Navigation System with Multi-display): B15C3: Speaker Output Short
B15C3 - Speaker Output Short

DESCRIPTION





WIRING DIAGRAM









INSPECTION PROCEDURE

PROCEDURE

1. INSPECT STEREO COMPONENT AMPLIFIER ASSEMBLY

(a) Disconnect the stereo component amplifier assembly connectors.

(b) Clear the DTCs and recheck for DTCs.

(c) Check if DTC B15C3 is output.

OK:

DTC B15C3 is not output.

NG -- REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Removal
OK -- Continue to next step.

2. CHECK OPERATION

(a) Reconnect the stereo component amplifier assembly connector.

(b) Check if DTC B15C3 is output.

OK:

DTC B15C3 is not output.

NG -- CHECK HARNESS AND CONNECTOR
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR

(a) Disconnect the connectors from the stereo component amplifier assembly and speakers.

(b) Measure the resistance between the stereo component amplifier assembly and body ground to check for a short circuit in the wire harness.

Standard Resistance:





(c) Measure the resistance between each of the front No. 2 speakers and the stereo component amplifier assembly to check for an open circuit in the wire harness.

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

4. INSPECT FRONT NO. 2 SPEAKER

(a) Resistance check





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

Standard Resistance:





Text in Illustration





NG -- REPLACE FRONT NO. 2 SPEAKER Removal
OK -- Continue to next step.

5. INSPECT FRONT NO. 3 SPEAKER

(a) Resistance check





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

Standard Resistance:





Text in Illustration





NG -- REPLACE FRONT NO. 3 SPEAKER Removal
OK -- Continue to next step.

6. REPLACE FRONT NO. 3 SPEAKER

(a) Check that the malfunction disappears when a known good speaker is installed Removal.

OK:

Malfunction disappears.

HINT
* Connect all the connectors to the front No. 3 speakers.
* 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.
* Perform the above inspection on both LH and RH sides.

NG -- REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Removal

OK -- END (FRONT NO. 3 SPEAKER WAS DEFECTIVE)

7. CHECK HARNESS AND CONNECTOR

(a) Disconnect the connectors from the stereo component amplifier assembly and speakers.

(b) Measure the resistance between the stereo component amplifier assembly and body ground to check for a short circuit in the wire harness.

Standard Resistance:





(c) Measure the resistance between each of the front No. 1 speakers and the stereo component amplifier assembly to check for an open circuit in the wire harness.

Standard Resistance:





(d) Measure the resistance between each of the rear speakers and the stereo component amplifier assembly to check for an open circuit in the wire harness.

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

8. INSPECT FRONT NO. 1 SPEAKER

(a) Resistance check





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

Standard Resistance:





Text in Illustration





NG -- REPLACE FRONT NO. 1 SPEAKER Removal
OK -- Continue to next step.

9. INSPECT REAR SPEAKER

(a) Resistance check





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

Standard Resistance:





Text in Illustration





NG -- REPLACE REAR SPEAKER Removal

OK -- REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Removal