XM RADIO DISPLAY IS BLANK AND NO STATION INFORMATION IS DISPLAYED (WITHOUT
NAVIGATION)
Fig. 272: Audio System Symptom Troubleshooting Flowchart - XM Radio Display Is Blank And No
Station Information Is Displayed
Courtesy of AMERICAN HONDA MOTOR CO., INC.
NOTE:
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CHECK THE VEHICLE BATTERY CONDITION FIRST .
Check the connectors for poor connections or loose terminals.
1. Problem verification:
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1. Turn the ignition switch to ON (II).
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2. Turn on the audio unit, and press the XM button to check if the multi-information display
changes to the XM radio information screen.
Is the XM radio information displayed?
YES : Intermittent failure, the system is OK at this time.
NO : The failure is duplicated, go to step 2.
2. Determine possible failure area (GA +B line, others):
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1. Turn the ignition switch to LOCK (0).
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2. Measure the voltage between test points 1 and 2.
Test condition IG LOCK (0)
Test circuit GA +B
Test point 1 XM receiver connector A (14P) No. 6 (RED)
Test point 2 Body ground
Fig. 273: Measuring Voltage Between Test Point XM Receiver Connector A (14P) No. 6
(RED) And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there battery voltage?
YES : The GA +B wire is OK. Go to step 5.
NO : Go to step 3.
3. Open wire check (GA +B line):
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1. Measure the voltage between test points 1 and 2.
Test condition IG LOCK (0)
Test circuit GA +B
Test point 1 Audio unit connector C (14P) No. 6 (RED)
Test point 2 Body ground
Fig. 274: Measuring Voltage Between Test Point Audio Unit Connector C (14P) No. 6 (RED)
And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there battery voltage?
YES : Repair an open or high resistance in the wires between the audio unit and the XM receiver.
NO : Go to step 4.
4. Shorted wire check (GA +B line):
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1. Turn the ignition switch to LOCK (0).
2. Disconnect the following connectors:
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Audio unit connector C (14P)
XM receiver connector A (14P)
HandsFreeLink control unit connector (32P)
3. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
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Audio unit connector C (14P): disconnected
XM receiver A (14) connector: disconnected
HandsFreeLink control unit 32P connector: disconnected
Test circuit GA +B
Test point 1 Audio unit connector C (14P) No. 6 (RED)
Test point 2 Body ground
Fig. 275: Checking For Continuity Between Test Point Audio Unit Connector C (14P) No. 6
(RED) And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : Repair a short to ground in the wire between the audio unit and the XM receiver.
NO : REPLACE THE AUDIO UNIT .
5. Determine possible failure area (GA GND line, others):
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1. Turn the ignition switch to ON (II).
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2. Measure the voltage between test points 1 and 2.
Test condition IG ON (II)
Test circuit GA GND
Test point 1 XM receiver connector A (14P) No. 10 (BLK)
Test point 2 Body ground
Fig. 276: Measuring Voltage Between Test Point XM Receiver Connector A (14P) No. 10
(BLK) And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there less than 0.2 V?
YES : The GA GND wire is OK. Go to step 7.
NO : Go to step 6.
6. Open or high resistance wire check (GA GND line):
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1. Measure the voltage between test points 1 and 2.
Test condition IG ON (II)
Test circuit GA GND
Test point 1 Audio unit connector C (14P) No. 10 (BLK)
Test point 2 Body ground
Fig. 277: Measuring Voltage Between Test Point Audio Unit Connector C (14P) No. 10 (BLK)
And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there any voltage?
YES : REPLACE THE AUDIO UNIT .
NO : Repair an open in the wire between the audio unit and the XM receiver.
7. Open wire check (GA SYS ON line):
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1. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
Audio unit connector C (14P): disconnected
XM receiver connector A (14P): disconnected
HandsFreeLink control unit 32P connector: disconnected
Multi-information display unit connector A (32P): disconnected
Test circuit GA SYS ON
Test point 1 Audio unit connector C (14P) No. 5 (PNK)
Test point 2 XM receiver connector A (14P) No. 5 (PNK)
Fig. 278: Checking For Continuity Between Test Point Audio Unit Connector C (14P) No. 5
(PNK) And XM Receiver Connector A (14P) No. 5 (PNK)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : The GA SYS ON wire is OK. Go to step 8.
NO : Repair an open in the wire between the audio unit and the XM receiver.
8. Shorted wire check (GA BUS+ line, GA BUS- line):
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1. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
Audio unit connector C (14P): disconnected
XM receiver connector A (14P): disconnected
Multi-information display unit connector A (32P): disconnected
HandsFreeLink control unit 32P connector: disconnected
Test circuit GA BUS-
Test point 1 Audio unit connector C (14P) No. 11 (PNK)
Test point 2 Body ground
Test circuit GA BUS+
Test point 1 Audio unit connector C (14P) No. 12 (BLU)
Test point 2 Body ground
Fig. 279: Checking For Continuity Between Test Point Audio Unit Connector C (14P) No. 12
(BLU) And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : There is a short to body ground in the wire(s) between the audio unit and the XM receiver. Replace
the affected shielded harness.
NO : The GA BUS+ and the GA BUS- wires are not shorted to ground. Go to step 9.
9. Shorted wire check (GA BUS+ line to GA BUS- line):
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1. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
Audio unit connector C (14P): disconnected
XM receiver connector A (14P): disconnected
Multi-information display unit connector A (32P): disconnected
HandsFreeLink control unit 32P connector: disconnected
Test circuit GA BUS-, GA BUS+
Test point 1 Audio unit connector C (14P) No. 11 (PNK)
Test point 2 Audio unit connector C (14P) No. 12 (BLU)
Fig. 280: Checking For Continuity Between Test Point Audio Unit Connector C (14P) No. 11
(PNK) And No. 12 (BLU)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : There is a short in the wires between the audio unit and the XM receiver. Replace the affected
shielded harness.
NO : The GA BUS+ and the GA BUS- wires are not shorted. Go to step 10.
10. Shorted wire check (SH GA BUS line to another lines):
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1. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
Audio unit connector C (14P): disconnected
XM receiver connector A (14P): disconnected
Multi-information display unit connector A (32P): disconnected
HandsFreeLink control unit 32P connector: disconnected
Test circuit SH GA BUS, GA BUS+
Test point 1 Audio unit connector C (14P) No. 4 (GRY)
Test point 2 Audio unit connector C (14P) No. 12 (BLU)
Test circuit SH GA BUS, GA BUS-
Test point 1 Audio unit connector C (14P) No. 4 (GRY)
Test point 2 Audio unit connector C (14P) No. 11 (PNK)
Fig. 281: Checking For Continuity Between Test Point Audio Unit Connector C (14P) No. 4
(GRY) And No. 11 (PNK)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : There is a short in the wires between the audio unit and the XM receiver. Replace the affected
shielded harness.
NO : The SH GA BUS wire is OK. Go to step 11.
11. Open wire check (GA BUS+ line, GA BUS- line):
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1. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
Audio unit connector C (14P): disconnected
XM receiver connector A (14P): disconnected
HandsFreeLink control unit 32P connector: disconnected
Multi-information display unit connector A (32P): disconnected
Test circuit GA BUS-
Test point 1 Audio unit connector C (14P) No. 11 (PNK)
Test point 2 XM receiver connector A (14P) No. 11 (PNK)
Test circuit GA BUS+
Test point 1 Audio unit connector C (14P) No. 12 (BLU)
Test point 2 XM receiver connector A (14P) No. 12 (BLU)
Fig. 282: Checking For Continuity Between Test Point Audio Unit Connector C (14P) No. 12
(BLU) And XM Receiver Connector A (14P) No. 12 (BLU)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : The GA BUS+ and the GA BUS- wires are OK. Go to step 12.
NO : There is an open in the wire(s) between the audio-navigation unit and the XM receiver. Replace the
affected shielded harness.
12. Determine possible failure area (related unit, others):
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1. Reconnect audio unit connector C (14P) and multi-information display unit connector A (32P).
2. Turn the ignition switch to ON (II).
3. Turn on the audio unit, and press the AUX button to select the USB mode.
NOTE:
Do not connect the USB device.
Is USB information (No Data) displayed in the multi-information display unit?
YES : Go to step 13.
NO : Go to step 14.
13. XM receiver check:
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1. Turn the ignition switch to LOCK (0).
2. Reconnect XM receiver connector A (14P).
3. Turn the ignition switch to ON (II).
4. Turn on the audio unit, and press the XM button to check if the multi-information display
changes to the XM radio information screen.
Is the XM radio information displayed?
YES : Replace the original HandsFreeLink control unit.
NO : REPLACE THE XM RECEIVER .
14. Audio unit check:
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1. Turn the ignition switch to LOCK (0).
2. SUBSTITUTE A KNOWN-GOOD MULTI-INFORMATION DISPLAY UNIT .
3. Turn the ignition switch to ON (II).
4. Turn on the audio unit, and press the AUX button to select the USB mode.
NOTE:
Do not connect the USB device.
Is USB information (No Data) displayed in the multi-information display unit?
YES : Replace the original multi-information display unit.
NO : REPLACE THE AUDIO UNIT .
XM RADIO PRESET MEMORY IS LOST (WITH NAVIGATION)
Fig. 283: Audio System Symptom Troubleshooting Flowchart - XM Radio Preset Memory Is Lost
Courtesy of AMERICAN HONDA MOTOR CO., INC.
NOTE:
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If you can only tune to channel 000, 001, and 174, make sure the audio-
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