Chrysler Crossfire. Manual — part 145
*NO SOUND FROM ALL SPEAKERS
ZH
AUDIO - ELECTRICAL DIAGNOSTICS
8A - 5
*NO SOUND FROM ALL SPEAKERS (CONTINUED)
POSSIBLE CAUSES
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
GROUND CIRCUIT OPEN
POWER AMPLIFIER
For a complete Audio System Circuit Diagram, (Refer to 8 - ELECTRICAL/AUDIO - SCHEMATICS AND DIA-
GRAMS).
Diagnostic Test
1.
MEASURE POWER AMPLIFIER FUSED IGNITION SWITCH OUTPUT CIRCUIT VOLTAGE
Note: Inspect Fuse 23 located in the Underhood Accessory Fuse Block. If the fuse is open, repair the cause
of the open fuse before continuing.
Turn the ignition off.
Disconnect the Power Amplifier harness connector.
Note: Check connector - Clean/repair as necessary.
Turn the ignition on.
Measure the voltage of the Fused Ignition Switch Output circuit at the
Power Amplifier harness connector cavity 1 (connector B).
Is the voltage above 10 volts?
Yes
>> Go to 2
No
>> Repair the Power Amplifier Fused Ignition Switch Output
circuit for an open.
Perform BODY VERIFICATION TEST.
2.
MEASURE POWER AMPLIFIER FUSED IGNITION SWITCH OUTPUT CIRCUIT VOLTAGE
With the ignition on.
Measure the voltage of the Fused Ignition Switch Output circuit at the
Power Amplifier harness connector cavity 9 (connector B).
Is the voltage above 10 volts?
Yes
>> Go to 3
No
>> Repair the Power Amplifier Fused Ignition Switch Output
circuit for an open.
Perform BODY VERIFICATION TEST.
8A - 6
AUDIO - ELECTRICAL DIAGNOSTICS
ZH
*NO SOUND FROM ALL SPEAKERS (CONTINUED)
3.
MEASURE POWER AMPLIFIER GROUND CIRCUIT RESISTANCE
Turn the ignition off.
Measure the resistance between ground and the Ground circuit at cav-
ity 11 (connector A) of the Power Amplifier harness connector.
Is the resistance below 5.0 ohms?
Yes
>> Go to 4
No
>> Repair the Ground circuit for an open.
Perform BODY VERIFICATION TEST.
4.
MEASURE POWER AMPLIFIER GROUND CIRCUIT RESISTANCE
With the ignition off.
Measure the resistance between ground and the Ground circuit at cav-
ity 4 (connector A) of the Power Amplifier harness connector.
Is the resistance below 5.0 ohms?
Yes
>> Replace the Power Amplifier. (Refer to 8 - ELECTRICAL/
AUDIO/AMPLIFIER - REMOVAL).
Perform BODY VERIFICATION TEST.
No
>> Repair the Ground circuit for an open.
Perform BODY VERIFICATION TEST.
ZH
AUDIO - ELECTRICAL DIAGNOSTICS
8A - 7
*NO SOUND FROM LEFT DOOR SPEAKERS
8A - 8
AUDIO - ELECTRICAL DIAGNOSTICS
ZH
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