Front Door Speaker Inspection

Audio Visual Telematics. Corolla. Zre142 Aze141
Audio Video. Corolla. Zre142 Aze141

  1. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

  2. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY (for 6 Speakers)

Front Door Speaker -- Inspection



1. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

  1. With the speaker installed, check that there is no looseness or other abnormalities.

  1. Check that there is no foreign matter in the speaker, no tears on the speaker cone or other abnormalities.



    Corolla. Zre142 Aze141.Audio Video.Audio And Visual System (W/O Multi-Display).Front Door Speaker Inspection

  1. Measure the resistance of the speaker.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    1 - 2
    		Always
    		3.2 to 4.8 Ω
    If the result is not as specified, replace the speaker.
    Text in Illustration
    *a
    		Component without harness connected
    (Front No. 1 Speaker Assembly)


2. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY (for 6 Speakers)

  1. With the speaker installed, check that there is no looseness or other abnormalities.

  1. Check that there is no foreign matter in the speaker, no tears on the speaker cone or other abnormalities.



    Corolla. Zre142 Aze141.Audio Video.Audio And Visual System (W/O Multi-Display).Front Door Speaker Inspection

  1. Measure the resistance of the speaker.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    4 (+) - 2 (-)
    		Always
    		10 kΩ or higher
    2 (-) - 1 (TWR-)
    		Always
    		Below 1 Ω
    4 (+) - 3 (TWR+)
    		Always
    		Below 1 Ω
    2 (-) - 1 (TWL-)
    		Always
    		Below 1 Ω
    4 (+) - 3 (TWL+)
    		Always
    		Below 1 Ω
    If the result is not as specified, replace the speaker.
    Text in Illustration
    *A
    		for RH
    *B
    		for LH
    *a
    		Component without harness connected
    (Front No. 2 Speaker Assembly)

  1. When there is a possibility that either the right or left speaker is malfunctioning, interchange the speakers and perform an inspection. If the malfunction disappears after interchanging the speakers, replace the malfunctioning speaker.

    HINT:
    Connect all connectors to the speakers when performing an inspection. If the result is not as specified, replace the speaker.