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AUDIO
LOSS OF COMMUNICATION ON PRIVATE BUS - SDARS —
TEST
3
Turn the ignition off.
Disconnect the Satellite Receiver Module harness connectors.
Disconnect the Satellite Radio Multiplexer harness connectors.
Turn the ignition on.
Measure the voltage of the Audio Bus 2 circuit.
Is the voltage above 2 volts?
Yes → Repair the Audio Bus 2 circuit for a short to voltage between the
→ Go To 4
No
4
Turn the ignition off.
Disconnect the Satellite Radio Multiplexer harness connectors.
Disconnect the Radio harness connector.
Measure the resistance between ground and the Audio Bus 1 circuit.
Is the resistance below 100 ohms?
Yes → Repair the Audio Bus 1 circuit for a short to ground between the
→ Go To 5
No
5
Turn the ignition off.
Disconnect the Radio harness connector.
Disconnect the Satellite Radio Multiplexer harness connectors.
Measure the resistance of the Audio Bus 1 circuit between the Radio and the
Multiplexer.
Is the resistance below 5.0 ohms?
Yes → Go To 6
→ Repair the Audio Bus 1 circuit for an open between the Radio and
No
6
Turn the ignition off.
Disconnect the Radio harness connector.
Disconnect the Satellite Radio Multiplexer harness connectors.
Turn the ignition on.
Measure the voltage of the Audio Bus 1 circuit.
Is the voltage above 2 volts?
Yes → Repair the Audio Bus 1 circuit for a short to voltage between the
→ Go To 7
No
ACTION
Satellite Receiver Module and the Multiplexer.
Perform BODY VERIFICATION TEST - VER 1.
Radio and the Multiplexer.
Perform BODY VERIFICATION TEST - VER 1.
the Multiplexer.
Perform BODY VERIFICATION TEST - VER 1.
Radio and the Multiplexer.
Perform BODY VERIFICATION TEST - VER 1.
266
Continued
APPLICABILITY
All
All
All
All
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