DTC Troubleshooting: 2703
DTC 2703:
 Aircon Diag
NOTE:
  • Check for B-CAN DTCs and resolve them before troubleshooting.
  • Before you troubleshoot, make sure to follow the general troubleshooting information.
  • 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. Clear the hard error code.
  1. Turn the ignition switch to LOCK (0), and then back to ON (II).
  1. Go into the Diagnostic Menu and select the Self-Diagnosis Mode in the Select Diagnosis Items menu.
  1. Check the System Links.
Is the Aircon icon red?
YES -
Go to Step 5 .
NO -
Intermittent failure, the system is OK at this time.■
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect navigation unit connector B (32P).
  1. Connect the navigation unit connector B (32P) terminals No. 4, No. 20, and No. 21 with a jumper wire.
  1. Turn the ignition switch to ON (II).
  1. Do the A/C self-Diagnostic Mode.
If the HEAT/VENT both indicator solid with the remaining icons blinking?
YES -
Replace the navigation unit. ■
NO -
Go to Step 10 .
  1. Turn the ignition switch to LOCK (0), then disconnect the jumper wire.
  1. Disconnect climate control unit connecter B (12P).