| 1 |
Check error and customer complaint again. Radio function OK? |
Check battery charging condition and battery cables for perfect contacts.
If the problem persists, contact radio manufacturer
End |
Does radio have a CD player or a magnetic-tape drive?
Yes Check signal lead
No Go to Step 2 |
| 2 |
Does radio have a display? |
If an audio signal can be heard, connect a functional radio.
Step 3
If no audio signal can be heard Step 5 |
Step 6 |
| 3 |
Does the system now function perfectly? |
Replace radio
End |
See
INTERFERENCE NOISES
End |
| 4 |
1. Check all radio connections. 2. Check voltage at the connections battery
and ignition
. 3. Check ground connection of radio.
Radio function OK? |
Repair wiring harness or plug connection
End |
Connect functional radio
Step 3 |
| 5 |
1. Disconnect audio connections from radio. 2. At maximum volume setting, measure the alternating voltage at the outputs. 3. Is the voltage between 8.4 and 11.0V?
Radio function OK? |
1. Check connection between the radio and the amplifier with an ohmmeter. 2. Check the audio connections (+) and (-) for short circuits or ground connections. 3. Check polarity of the entire wiring. 4. Repair any detected damage.
End |
Connect functional radio
Step 3 |
| 6 |
Is a short circuit present? |
Repair the cable connection and check the system
End |
Step 4 |