| 1 |
- Verify that the AM radio and FM radio reception conditions.
- Are AM radio and FM radio reception normally?
|
Yes |
Go to the next step. |
| No |
Perform symptom "No.1 no radio reception (AM/FM)/no or low volume" troubleshooting procedure.
(See NO.1 NO RADIO RECEPTION (AM/FM)/NO OR LOW VOLUME [RADIO] .) |
| 2 |
- Is aftermarket electronic equipment (two-way radio, navigation system, mobile phone, etc.) installed?
NOTE:
- TV antenna located closely to audio antenna can be cause of noise. Relocate TV antenna.
|
Yes |
Go to the next step. |
| No |
Go to Step 4. |
| 3 |
- Remove aftermarket electronic equipment.
- Turn audio unit ON and check reception condition.
- Is reception improved?
|
Yes |
The system is normal.
(Explain to customers that aftermarket electronic equipment is cause of noise) |
| No |
Go to the next step. |
| 4 |
- Inspect SIRIUS satellite radio antenna feeder connection condition.
- Is connection okay?
|
Yes |
Go to the next step. |
| No |
Insert antenna feeder securely. |
| 5 |
- Switch the ignition OFF (LOCK).
- Measure continuity between SIRIUS satellite radio antenna feeder axis and ground.
- Is there any continuity?
|
Yes |
Replace the SIRIUS satellite radio antenna feeder.
(See SIRIUS SATELLITE RADIO ANTENNA FEEDER REMOVAL/INSTALLATION
.) |
| No |
Go to the next step. |
| 6 |
|
Yes |
Go to the next step. |
| No |
Replace the SIRIUS satellite radio antenna feeder.
(See SIRIUS SATELLITE RADIO ANTENNA FEEDER REMOVAL/INSTALLATION
.) |
| 7 |
|
Yes |
Go to the next step. |
| No |
Replace the SIRIUS satellite radio antenna.
(See ROOF ANTENNA REMOVAL/INSTALLATION
.) |
| 8 |
- Inspect the following wiring harness for open or short circuit.
- Between SIRIUS satellite radio unit harness side connector terminal L and audio unit terminal 1O
- Between SIRIUS satellite radio unit harness side connector terminal K and audio unit terminal 1Q
- Between SIRIUS satellite radio unit harness side connector terminal O and ignition switch
- Between SIRIUS satellite radio unit harness side connector terminal P and relay and fuse block
- Between SIRIUS satellite radio unit harness side connector terminal C and audio unit terminal 2C
- Between SIRIUS satellite radio unit harness side connector terminal E and audio unit terminal 2E
- Between SIRIUS satellite radio unit harness side connector terminal G and audio unit terminal 2D and 2F
- Between SIRIUS satellite radio unit harness side connector terminal A and GND
- Is there any open or short circuit detected?
|
Yes |
Repair or replace malfunctioning part. |
| No |
Go to the next step. |
| 9 |
- Install all removed parts.
- Compare reception with other Audio unit on same model (model/unit) under same problem conditions.
- Is reception equivalent between customer's unit and compared unit?
NOTE:
- Due to following differences, you may feel difference in reception efficiency.
(Vehicle side factor)
- Antenna installation location, height, feeder wiring routing, optional electrical equipment
(Audio unit factor)
- Volume concern type: It decreases change of volume when signals become weak. (Noise is easily noticed)
- Volume concern type: It decreases change of volume when signals become weak. (Noise is easily noticed)
|
Yes |
The system is normal.
(It is caused by electronic jamming from outside, or inferior broadcasting station signal condition.) |
| No |
Replace audio unit.
(See AUDIO UNIT REMOVAL/INSTALLATION
.) |