Audio Test

AUDIO SYSTEM

CAUTION: The CD player will only operate between approximate temperatures of -23 °C and +65 °C (-10 °F and +145 °F).

Whenever a radio malfunction occurs;
1. First check FUSES in the Junction Block:
a. Radio power
b. Ignition feed
c. Power Amplifier
d. Illumination
e. Memory feed

NOTE: The vehicles are shipped with the INTERIOR LAMP fuse disconnected.

Fig.1 Standard System:

Fig.2 Standard System:

Fig.3 Standard System:

Fig.4 Standard System:

Fig.5 Infinity Amplified System:

Fig.6 Infinity Amplified System:

Fig.7 Infinity Amplified System:

Fig.8 Infinity Amplified System:

Fig.9 Infinity Amplified System:

Fig.10 Infinity Amplified System:

Verify, the radio wire harness is properly connected before starting normal diagnosis and repair procedures. Refer to Audio Diagnostic Tables,,, for the base system and,,,,, for the Infinity System and/or Wiring Diagrams.

NOTE: If aftermarket accessories are present, ensure that the devices or the installation of these devices have not negatively effected the vehicle's operation.

- Radar detector
- Cellular Telephone
- Other electrical devices

NOISE DISTORTION IN ALL SPEAKERS
Does the distortion occur through all modes:
- AM and FM stations
- Cassette tape
- Compact disc

If not, check for radio interference, damaged tape or disc that may be causing the distortion. Refer to the Owners Manual for cleaning procedures of the cassette tape player.
- Check battery voltage, for 11 Volts or more.
- Check amplifier connectors, and wires for proper connection.
- If OK, check radio. Refer to Audio Diagnostic Test Procedures.
- If OK, replace amplifier (premium amplified system only).

ELECTRICAL NOISE DISTORTION ONE SPEAKER
- Remove wires to the distorted speaker and check each wire for a short to ground.
- Check speaker resistance at amplifier connector for three to ten ohms.
- If resistance is OK, refer to Audio Diagnostic Test Procedures. If radio checks OK, replace amplifier (if equipped).
- If resistance is less than three ohms or more than ten ohms, replace speaker. If resistance is OK, repair wires.

MECHANICAL NOISE DISTORTION
- Check trim for loose parts, and speaker attachments for buzzes.
- Remove speaker while still connected and listen for distortion. If distortion remains, replace speaker.
- If no distortion, repair loose/rubbing parts in speaker mounting area.

ONE SPEAKER NON-OPERATIVE
- Remove output signal connector to the speaker. Check each wire connector to the speaker for resistance.
- If resistance is less than 1 ohm, wire is OK.
- If not OK, repair wire. If OK, replace speaker.

ALL SPEAKERS NON-OPERATIVE
- Check radio for ON state. Are the display lights ON?
- Radio not ON, refer to Audio Diagnostic Test Procedures.
- Check fuses, amplifier connectors and wires for proper connection.
- Check for good ground.

NO BASS FREQUENCIES, HIGH AND MID FREQUENCIES OK
- Check radio for ON state. Are the display lights ON?
- Radio not ON, refer to Audio Diagnostic Test Procedures.
- Check fuses, amplifier connectors and wires for proper connection.
- Check for good ground.
- Check amplifier for battery voltage, and ON/OFF voltage.

1. Battery voltage OK and NO voltage at the ON/OFF terminal, check for short or open in the ON/OFF circuit.
2. ON/OFF voltage OK, and NO battery voltage, check for short or open in battery circuit.
3. Prior to replacing amplifier, check fuse to the cigar lighter and horn. if not OK, replace fuse. If fuse blows again, disconnect amplifier B+ wire connector.
4. If fuse still blows, the problem is not the amplifier. If fuse does not blow, replace the amplifier.
5. If shorted or open circuit, repair as necessary.