Audio System Symptom Troubleshooting - Audio unit power switch will not turn off
Audio unit power switch will not turn off
NOTE:
  • Check the vehicle battery condition first.
  • Check the connectors for poor connections or loose terminals.
  • Check for aftermarket accessories plugged info the vehicle's accessory power sockets.
  1. Turn the ignition switch to ON (II).
  1. Push the power switch off or turn the ignition switch to LOCK (0) to see if the audio unit turns off.
Does the audio unit turn off?
YES -
Go to Step 3 .
NO -
Replace the audio unit:■
  • With navigation system
  • Without navigation system
  1. Push the power switch on, then turn the ignition switch to LOCK (0).
Does the audio unit turn off?
YES -
Operation is normal.■
NO -
Go to Step 4 .
  1. Remove the audio unit with navigation system , without navigation system. Disconnect audio unit connector A (24P).
    NOTE: Eject all the CDs before disconnecting the audio unit and CD changer to prevent damaging the CD player's load mechanism.
  1. Measure the voltage between the terminal No. 14 of audio unit connector A (24P) and body ground.
Is there battery voltage?
YES -
Check for short to power on the PUR wire.■
NO -
Substitute a known-good audio unit with navigation system , without navigation system, and recheck. If the symptom/indication goes away, replace the original audio unit with navigation system , without navigation system. ■