Schematic Reference:
Radio/Audio System Schematics
Connector End Views Reference:
Entertainment Connector End Views
Diagnostic System Check - Vehicle
Always perform the Vehicle Diagnostic System Check before proceeding with these
diagnostic procedures. Refer to
Diagnostic System Check - Vehicle
in Vehicle DTC Information.
All Speakers Inoperative
Important: The following information lists the most
probable cause of the concern to the least probable cause followed by the appropriate
test for that condition. If the list leads to the replacement of a component, always
inspect for a poor connection before proceeding with the replacement. Refer to
Testing for Intermittent Conditions and Poor Connections
and
Connector Repairs
in Wiring Systems.
Without RPO UZ8
With RPO UZ8 (Monsoon)
| • | Battery positive voltage circuit to the amplifier open--Test the
battery positive voltage circuit to the amplifier for an open. Refer to
Circuit Testing
and
Wiring Repairs
in Wiring Systems. |
| • | Low level audio signal circuit shorted--Test all low level audio
signal circuits for a short to ground or short to voltage. Refer to
Circuit Testing
and
Wiring Repairs
in
Wiring Systems. |
| • | 14-volt reference circuit open or shorted to ground--Test the 14-volt
reference circuit for an open or short to ground. Refer to
Circuit Testing
and
Wiring Repairs
in
Wiring Systems. |
| • | No low level audio output from the radio--Test for any AC voltage
between the left front low level audio signal circuits at the amplifier harness connector,
disconnected with the radio volume adjusted to 50 percent. If no AC voltage is present,
replace the radio. Refer to
Control Module References
in Computer/Integrating Systems. |
| • | No audio output from the amplifier--Replace the amplifier. Refer
to
Control Module References
in Computer/Integrating
Systems. |
Important: The following procedure assumes that all
speakers are operative for all modes of operation except digital radio.
With RPO U2K
| • | Left or right audio signal (+) circuit shorted--Test both audio signal
(+) circuits for a short. Refer to
Circuit Testing
and
Wiring Repairs
in Wiring Systems. |
| • | No audio output from the digital radio receiver--Replace the digital
radio receiver. Refer to
Control Module References
in
Computer/Integrating Systems. |
| • | No digital radio output from the radio--Replace the radio. Refer
to
Control Module References
in Computer/Integrating
Systems. |
