Error code: XM NO SIGNAL is displayed (without navigation)
- Check the vehicle battery condition first (see BATTERY TEST ).
- Check XM radio reception in an open area. Poor reception/interference can be caused by tall buildings, mountains, or high-voltage power lines.
- Check the connectors for poor connections or loose terminals.
- Park vehicle outside with a clear view of the southern horizon.
- Turn the ignition switch to ON (II).
- Do the XM Self-Diagnosis (see XM SELF-DIAGNOSIS
).
Are the other XM error codes displayed?
YES -Go to ERROR CODES .
NO -Go to step 4.
- Turn on the audio unit, and select XM radio.
Does the XM radio receive a signal?
YES -Reception interference operation is normal.
NO -Go to step 5.
- Turn the ignition switch to LOCK (0).
- Check the connection at the XM antenna 2P connector and XM receiver connector B (2P).
Are the connectors connected?
YES -Go to step 7.
NO -Reconnect the connectors and recheck XM radio operation. If the signal is restored, the system is OK. If the signal is not restored go to step 7.
- Substitute a known-good XM antenna (see XM ANTENNA REPLACEMENT
).
Does the XM radio receive a signal?
YES -Replace the original XM antenna (see XM ANTENNA REPLACEMENT ).
NO -Go to step 8.
- Measure the voltage between XM receiver connector A (14P) terminal No. 1 and body ground.
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Is there battery voltage?
YES -Go to step 10.
NO -Go to step 9.
- Measure the voltage between audio unit connector C (14P) terminal No. 1 and body ground.
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Is there battery voltage?
YES -Repair an open or high resistance in the wire between the XM receiver and the audio unit.
NO -Replace the audio unit (see AUDIO UNIT REMOVAL/INSTALLATION ).
- Turn the ignition switch to ON (II).
- Measure the voltage between XM receiver connector A (14P) terminal No. 11 and body ground.
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Is there less than 0.2 V?
YES -Substitute a known-good XM antenna lead. If the XM receiver receives a signal, replace the original XM antenna lead. If the XM receiver does not receive a signal, substitute a known-good XM receiver (see XM RECEIVER REMOVAL/INSTALLATION ), and recheck. If the symptom/indication goes away, replace the original XM receiver (see XM RECEIVER REMOVAL/INSTALLATION ).
NO -Repair an open or high resistance in the wire between the XM receiver and the audio unit.