DTC Troubleshooting: 2605
DTC 2605:
 H/D Diag: Connect
NOTE:
  • Check the vehicle battery condition first.
  • Check for B-CAN DTCs and resolve them before troubleshooting.
  • When Soft Error of the Hard Error/Soft Error in the Error History menu is displayed in yellow, select Save first before selecting Clear.
  • When abnormalities are in air conditioning, do the aircon system troubleshooting performed previously.
  1. Turn the ignition switch to LOCK (0), and then back ON (II).
Is Hard Error 2601 indicated?
YES -
Do the 2601 troubleshooting.
NO -
Go to Step 4 .
  1. Select the System Links.
Is the Radio icon red?
YES -
Go to Step 6 .
NO -
Intermittent failure, the system is OK at this time.■
  1. Turn the ignition switch to LOCK (0).
  1. Check for poor connections or loose terminals at audio unit connector D (14P), USB adapter unit connector A (14P), and navigation display unit connector 28P.
Are there connections OK?
YES -
Go to Step 8 .
NO -
  1. Disconnect audio unit connector D (14P), and navigation display unit connector 28P.
  1. Connect the audio unit connector D (14P) terminals No. 9 and No. 10 with a jumper wire.
  1. Check for continuity between the navigation display unit 28P connector terminals No. 3 and No. 17.
Is there continuity?
YES -
Do the audio unit troubleshooting.■
NO -
Repair open in the wire(s) between audio unit and navigation display unit.■