Chrysler Concorde 2004 Service Manual page 1039

NO COMMUNICATION WITH CD/DVD CHANGER —
TEST
2 Use Scope input cable CH7058, Cable to Probe adapter CH7062, and the red and
black test probes.
Connect the scope input cable to the channel one connector on the DRB. Attach the
red and black leads and the cable to probe adapter to the scope input cable.
With the DRBIII select Pep Module Tools.
Select lab scope.
Select Live Data.
Select 12 volt square wave.
Press F2 for Scope.
Press F2 and use the down arrow to set voltage range to 20 volts. Press F2 again
when complete.
Disconnect the CD Changer harness connector.
NOTE: If vehicle is equipped with a satellite radio multiplexer, check
connectors. This devise is a pass through for the CD Changer circuits, if
equipped with SDARS.
Connect the Black lead to the chassis ground. Connect the Red lead to the PCI Bus
circuit in the CD Changer connector.
Reconnect the Radio C2 harness connector.
Turn the ignition on.
Turn the Radio and CD Changer on.
Observe the voltage display on the DRB Lab Scope.
Does the voltage pulse from 0 to approximately 7.5 volts?
Yes → Go To 3
No
3 Turn the ignition off.
Disconnect the CD Changer harness connector.
Turn the ignition on.
Turn the Radio and the CD Changer on.
NOTE: If vehicle is equipped with a satellite radio multiplexer, check
connectors. This devise is a pass through for the CD Changer circuits, if
equipped with SDARS.
Using a 12-volt test light connected to ground, probe the ignition switch output
circuit in the CD Changer connector.
Is the test light illuminated?
Yes → Go To 4
No
4 Turn the ignition off.
Disconnect the CD Changer harness connector.
NOTE: If vehicle is equipped with a satellite radio multiplexer, check
connectors. This devise is a pass through for the CD Changer circuits, if
equipped with SDARS.
Using a 12-volt test light connected to 12-volts, probe each CD Changer ground
circuit in the CD Changer connector.
Is the test light illuminated for each circuit?
Yes → Replace the CD Changer in accordance with the service informa-
No
ACTION
→ Repair the PCI Bus circuit for an open. If OK, replace the Radio.
Perform BODY VERIFICATION TEST - VER 1.
→ Replace the Radio in accordance with the service information.
Perform BODY VERIFICATION TEST - VER 1.
tion
Perform BODY VERIFICATION TEST - VER 1.
→ Replace the Radio in accordance with the service information
Perform BODY VERIFICATION TEST - VER 1.
17
AUDIO
Continued
APPLICABILITY
All
All
All