Section 1015 (Audio System): Troubleshooting
WARNING: This page is about a different car, the 2004 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
When replacing the internal mechanism (computer part) of the audio system, be careful that no part of your body or clothing comes in contact with the terminals of the leads from the IC, etc. of the replacement part (spare part).
HINT:
This inspection procedure is a simple troubleshooting which should be carried out on the vehicle during system operation and was prepared on the assumption of system component troubles (except for the wires and connectors, etc.).
Always inspect the trouble taking the following items into consideration.
- Open or short circuit of the wire harness
- Connector or terminal connection fault
TROUBLESHOOTING REFERENCE
| Problem | No. | |
|---|---|---|
| Radio | Radio not operating when power switch turned to 'ON'. | 1 |
| Display indicates when power switch turned to 'ON', but no sound (including 'noise') is produced. | 2 | |
| Noise present, but AM - FM not operating. | 3 | |
| Any speaker does not work. | 4 | |
| Any AM or FM does not work. | 5 | |
| Few preset turning bands. | 5 | |
| Reception poor. | 6 | |
| Sound quality poor. | 7 | |
| Preset memory disappears. | 8 | |
| Tape Player | Cassette tape cannot be inserted. | 9 |
| Cassette tape inserted, but no power. | 10 | |
| Power coming in, but tape player not operating. | 11 | |
| Any speaker does not work. | 12 | |
| Sound quality poor. | 13 | |
| Tape jammed, malfunction with tape speed or auto-reverse. | 14 | |
| Cassette tape will not eject. | 15 | |
| CD Player | CD cannot be inserted. | 16 |
| CD inserted, but no power. | 17 | |
| Power coming in, but CD player not operating. | 18 | |
| Sound jumps. | 19 | |
| Sound quality poor (Volume faint). | 20 | |
| Any speaker does not work. | 21 | |
| CD will not be ejected. | 22 | |
| Power Amplifier | No power coming in. | 23 |
| Power coming in, but power amplifier not operating. | 24 | |
| Any speaker does not work. | 25 | |
| Noise | Noise occurs | 26 |
| Noise produced by vibration or shock while driving. | 27 | |
| Noise produced when engine starts. | 28 |
The term "AM" includes LW, MW and SW, and the term "FW" includes UKW.
- "Radio" RADIO NOT OPERATING WHEN POWER SWITCH TURNED TO "ON"
- Radio DISPLAY INDICATES WHEN POWER SWITCH TURNED TO "ON", BUT NO SOUND (INCLUDING "NOISE") IS PRODUCED
- Radio NOISE PRESENT, BUT AM-FM NOT OPERATING
- Radio ANY SPEAKER DOSE NOT WORK
- Radio ANY AM OR FM DOES NOR WORK FEW PRESET TUNING BANDS
- Radio POOR RECEPTION
- Radio SOUND QUALITY POOR
- Radio PRESET MEMORY DISAPPEARS
- Tape Player CASSETTE TAPE CANNOT BE INSERTED
- Tape Player CASSETTE TAPE INSERTED, BUT NO POWER
- Tape Player POWER COMING IN, BUT TAPE PLAYER NOT OPERATING
- Tape Player ANY SPEAKER DOES NOT WORK
- Tape Player SOUND QUALITY POOR (VOLUME FAINT)
- Tape Player TAPE JAMMED MALFUNCTION WITH TAPE SPEED OR AUTO-REVERSE
- Tape Player CASSETTE TAPE WILL NOT BE EJECTED
- CD Player CD CANNOT BE INSERTED
- CD Player CD INSERTED, BUT NO POWER
- CD Player POWER COMING IN, BUT CD PLAYER NOT OPERATING
- CD Player SOUND JUMPS
- CD Player SOUND QUALITY POOR (VOLUME FAINT)
- CD Player ANY SPEAKER DOES NOT WORK
- CD Player CD WILL NOT BE EJECTED
- Power Amplifier NO POWER COMING IN
- Power Amplifier POWER COMING IN, BUT WOOFER (POWER) AMPLIFIER NOT OPERATING
- Power Amplifier ANY SPEAKER DOES NOT WORK
- Noise: NOISE OCCURS
- Noise: NOISE PRODUCED BY VIBRATION OR SHOCK WHILE DRIVING
- Noise: NOISE PRODUCED WHEN ENGINE STARTS