STEP 1. Checking with audio speaker test.
STEP 2. Check the speaker or tweeter.
(1) Remove the speaker or tweeter.
(2) Check that the speaker or tweeter outputs the noise when the voltage of 5 V is applied to the speaker or tweeter connector terminal.
Is the check result normal?
Go to Step 3. Replace the speaker or tweeter.
STEP 3. Check the wire harness between the speaker or tweeter connector terminal and the audio amplifier connector terminal.
Front door speaker (LH)
- Check of short circuit in DFL+, DFL- line between front door speaker (LH) connector and audio amplifier connector.
Front door speaker (RH)
- Check of short circuit in DFR+, DFR- line between front door speaker (RH) connector and audio amplifier connector.
Front tweeter (LH)
- Check of short circuit in TFL+, TFL- line between front door speaker (LH) connector and audio amplifier connector.
Front tweeter (RH)
- Check of short circuit in TFR+, TFR- line between front door speaker (RH) connector and audio amplifier connector.
Rear door speaker (LH)
- Check of short circuit in RL+, RL- line between front door speaker (LH) connector and audio amplifier connector.
Rear door speaker (RH)
- Check of short circuit in RR+, RR- line between front door speaker (RH) connector and audio amplifier connector.
Is the check result normal?
Go to Step 4. Repair the connector(s) or wiring harness.
STEP 4. Check of short to power supply, short to ground, and open circuit in DFL+, DFL-, DFR+, DFR-, RR+ and RR- line between audio amplifier connector and multivision display connector.
STEP 5. Check the speaker or tweeter.
Follow the speaker test to check which speaker or tweeter does not sound.(1) Remove the speaker or tweeter.
(2) Check that the speaker or tweeter outputs the noise when the voltage of 5 V is applied to the speaker or tweeter connector terminal.
Do the speaker output the noise?
Go to Step 6. Replace the speaker or tweeter.
STEP 6. Check the wire harness between the speaker or tweeter connector terminal and audio amplifier connector terminal.
Follow the speaker test to check which speaker or tweeter circuit is defective.Front door speaker (LH)
- Check of open circuit in DFL+, DFL- line between front door speaker (LH) connector and audio amplifier connector.
Front door speaker (RH)
- Check of open circuit in DFR+, DFR- line between front door speaker (RH) connector and audio amplifier connector.
Front tweeter (LH)
- Check of open circuit in TFL+, TFL- line between front door speaker (LH) connector and audio amplifier connector.
Front tweeter (RH)
- Check of open circuit in TFR+, TFR- line between front door speaker (RH) connector and audio amplifier connector.
Rear door speaker (LH)
- Check of open circuit in RL+, RL- line between front door speaker (LH) connector and audio amplifier connector.
Rear door speaker (RH)
- Check of open circuit in RR+, RR- line between front door speaker (RH) connector and audio amplifier connector.
Is the check result normal?
Go to Step 7. Repair the connector(s) or wiring harness.
STEP 7. Check of short to power supply, short to ground, and open circuit in DFL+, DFL-, DFR+, DFR-, RR+ and RR- line between audio amplifier connector and multivision display connector.
STEP 8. Retest the system.