Speaker Circuit
AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Radio and Display Type with Intuitive Parking Assist System): Speaker Circuit
- Speaker Circuit
DESCRIPTION
* If there is a short in a speaker circuit, the stereo component amplifier assembly detects it and stops output to the speakers.
* Thus sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly or speakers.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CHECK HARNESS AND CONNECTOR
(a) Disconnect the connectors from the stereo component amplifier assembly and speakers.
(b) Measure the resistance between each of the front No. 1 speaker assemblies and the stereo component amplifier assembly to check for an open circuit in the wire harness.
Standard Resistance:
(c) Measure the resistance between each of the front No. 2 speaker assemblies and the stereo component amplifier assembly to check for an open circuit in the wire harness.
Standard Resistance:
(d) Measure the resistance between the front No. 3 speaker assembly and the stereo component amplifier assembly to check for an open circuit in the wire harness.
Standard Resistance:
(e) Measure the resistance between each of the rear No. 2 speaker assemblies and the stereo component amplifier assembly to check for an open circuit in the wire harness.
Standard Resistance:
(f) Measure the resistance between the rear speaker assembly and the stereo component amplifier assembly to check for an open circuit in the wire harness.
Standard Resistance:
(g) Measure the resistance between the stereo component amplifier assembly and body ground to check for a short circuit in the wire harness.
Standard Resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
2. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY
(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 ASSEMBLY Removal
OK -- Continue to next step.
3. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY
(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 ASSEMBLY Removal
OK -- Continue to next step.
4. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY
(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 ASSEMBLY Removal
OK -- Continue to next step.
5. INSPECT REAR NO. 2 SPEAKER ASSEMBLY
(a) Resistance check
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE REAR NO. 2 SPEAKER ASSEMBLY Removal
OK -- Continue to next step.
6. INSPECT REAR SPEAKER ASSEMBLY
(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 ASSEMBLY Removal
OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Problem Symptoms Table