Remote Radio Switch Circuit High - Dodge Ram 2004 Service Manual

Symptom:

REMOTE RADIO SWITCH CIRCUIT HIGH

When Monitored and Set Condition:
REMOTE RADIO SWITCH CIRCUIT HIGH
When Monitored: With the ignition on.
Set Condition: Remote radio control MUX circuit is open (above 5.0 volts).
DETERMINE FAULT
CLOCKSPRING OPEN
GROUND CIRCUIT OPEN
OPEN RADIO CONTROL MUX CIRCUIT
INSTRUMENT CLUSTER - OPEN INTERNAL
CLOCKSPRING SHORTED TO VOLTAGE
RADIO CONTROL MUX CIRCUIT SHORTED TO VOLTAGE
INSTRUMENT CLUSTER - SHORTED INTERNALLY
TEST
1 Turn the ignition on.
NOTE: Make sure the DRB can communicate with the Radio before continu-
ing.
With the DRBIII , erase the Instrument Cluster DTC's.
Cycle the ignition switch from off to on and wait 1 minute.
With the DRBIII , read the DTC's.
Did this DTC reset?
Yes → Go To 2
→ Refer to the wiring diagrams located in the service information to
No
2 WARNING: To avoid personal injury or death, turn the ignition off, discon-
nect the battery and wait 2 minutes before proceeding.
CAUTION: Do not place an intact undeployed airbag module face down on
a hard surface, the airbag module will propel into the air if accidently
deployed.
Remove the Driver Airbag Module.
Disconnect either remote radio switch harness connector.
Turn the ignition on, reconnect the battery.
Measure the voltage between the Radio Control MUX circuit and the ground circuit
at the remote radio switch connector.
Is the voltage above 3.6 volts?
Yes → Go To 3
→ Go To 5
No
POSSIBLE CAUSES
ACTION
help isolate a possible intermittent open or short.
Perform BODY VERIFICATION TEST - VER 1.
229
AUDIO
APPLICABILITY
All
All