| 1. | With the ignition switch ON (II), push the power switch OFF or turn the ignition switch OFF to see if the audio unit turns OFF. Is the audio unit OFF? YES - Operation is normal.n NO - Go to 2. |
| 2. | Turn the ignition switch OFF. |
| 3. | Remove the audio unit. Disconnect audio unit connector A (17P). |
| 4. | Measure the voltage between audio unit connector A (17P) terminal No. 14 and body ground.
Is there voltage? YES - Check for short to power on PUR wire.n NO - Replace the audio unit.n |