Go to step 17.
17. Do the B-CAN test mode A See: Powertrain Management/Computers and Control Systems/Information Bus/Testing and
Inspection/Component Tests and General Diagnostics/Troubleshooting - B-CAN System Diagnosis Test Mode A, and check the
communication with the AcuraLink control unit.
Does the AcuraLink control unit communicate with the HDS?
YES -
Go to step 18.
NO -
Go to AcuraLink control unit troubleshooting.?
18. Turn the ignition switch to LOCK (0).
19. Disconnect AcuraLink control unit (XM receiver) connector A (32P) and audio-navigation unit connector C (28P).
20. Check for continuity between body ground and AcuraLink control unit (XM receiver) connector A (32P) terminals No. 17, No. 18, No. 19,
and No. 20 individually.
Is there continuity?
YES -
There is a short to body ground in the wire(s) between the AcuraLink control unit (XM receiver) and the audio-navigation unit. Replace the
affected shielded harness.?
NO -
Go to step 21.
21. Check for continuity between the terminals of AcuraLink control unit (XM receiver) connector A (32P) according to the table.
Is there continuity between any of the terminals?
YES -
There is a short in the wires between the AcuraLink control unit (XM receiver) and the audio-navigation unit. Replace the affected shielded
