Mazda MX-3 silhouetteMX-3

AUDIO — Troubleshooting Flowchart No.2 (continued, Steps 2-5)

J-10flowchart
Continued from J-9

Step 2

  1. 1
    Remove the door speaker. (Refer to page J-20.)
    Photo of the door speaker removed from the door, showing the speaker connector at the base.
  2. 2
    Verify that the door speaker connector is properly connected. Reconnect it if necessary.
  3. 3
    If the connection is OK, go to Step 3.

Step 3

  1. 1
    Disconnect the door speaker connector.
    Photo of the door speaker with an ohmmeter measuring resistance between the speaker terminals.
  2. 2
    Measure the resistance between the terminals of the door speaker.

Step 3 — Door speaker resistance

3.6 Ω
ActionGo to Step 4
Other
ActionReplace door speaker (Refer to page J-20.)

Step 4

  1. 1
    Remove the audio unit. (Refer to page J-20.)
    Photo of the audio unit connector at the rear of the unit with the wiring harness attached.
  2. 2
    Verify that the audio unit connector is properly connected. Reconnect it if necessary.
  3. 3
    If the connections are OK, go to Step 5.

Step 5

  1. 1
    Disconnect the audio unit connector and the door speaker connector.
    Connector pin layout diagrams: the Audio Unit Connector showing terminals 1M, 1N, 1K, 1L; and the Door Speaker Connector showing terminals A and B.
  2. 2
    Check for continuity between terminals of the audio unit connector and the door speaker connector.
  3. 3
    If correct, go to Step 6.
  4. 4
    If not as specified, repair the wiring harness (Audio unit — Door speaker).

Step 5 — Continuity (audio unit ↔ door speaker)

Right door
Audio unitTerminal 1M
Door speakerTerminal B
ContinuityYes
Right door
Audio unitTerminal 1N
Door speakerTerminal A
ContinuityYes
Left door
Audio unitTerminal 1K
Door speakerTerminal B
ContinuityYes
Left door
Audio unitTerminal 1L
Door speakerTerminal A
ContinuityYes
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See also

page J-20

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