Inspection Procedure
- CHECK HARNESS AND CONNECTOR
- Disconnect the connectors shown in the illustration on the left from the stereo component amplifier assembly or the radio receiver assembly and speakers.
- Measure the resistance between the speaker and the stereo component amplifier assembly or the radio receiver assembly to check for an open circuit in the wire harness.
Standard resistance: Below 1 Ω
- Measure the resistance between the speaker and body ground to check for a short circuit in the wire harness.
Standard resistance: 10 kΩ or higher
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: Go to Next Step
- CHECK VEHICLE TYPE
- Choose type to be inspected.
Result
RESULT REFERENCEType Proceed to with No. 1 Woofer Box Speaker A without No. 1 Woofer Box Speaker B
B: Go to step
A: Go to Next Step
- Choose type to be inspected.
- INSPECT NO. 1 WOOFER BOX SPEAKER
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Resistance check.
NG: REPLACE WOOFER BOX SPEAKER ASSEMBLY NO.1
OK: Go to Next Step
- INSPECT FRONT NO. 1 SPEAKER
- Resistance check.
- Measure the resistance between the terminals of the speaker.
Standard resistance:
Separate Type Amplifier System (Coupe): 3 to 4 Ω
Separate Type Amplifier System (Convertible): 4 to 6 Ω
Built-in Type Amplifier System: 3.2 to 4.8 Ω
- Measure the resistance between the terminals of the speaker.
NG: REPLACE FRONT NO. 1 SPEAKER
OK: Go to Next Step
- Resistance check.
- INSPECT FRONT NO. 2 SPEAKER
- Check that malfunction disappears when another speaker in good condition is installed.
OK: Malfunction disappears.
HINT:
- Connect all the connectors to the speakers.
- When there is a possibility that either right or left front speaker is detective, inspect by interchanging the right one and the left one.
OK: REPLACE FRONT NO. 2 SPEAKER
NG: Go to Next Step
- Check that malfunction disappears when another speaker in good condition is installed.
- INSPECT REAR SPEAKER
- Resistance check.
- Measure the resistance between the terminals of the speaker.
Standard resistance:
Separate Type Amplifier System (Coupe): 1.75 to 2.75 Ω
Separate Type Amplifier System (Convertible): 2 to 2.8 Ω
Built-in Type Amplifier System (Convertible): 5.1 to 6.9 Ω
Built-in Type Amplifier System (Coupe): Approximately 4 Ω
- Measure the resistance between the terminals of the speaker.
NG: REPLACE REAR SPEAKER
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE
- Resistance check.