Displaying & Reading Trouble Codes

On-Board Diagnostics - Diagnostic Trouble Codes And Status Lamp Displays:

ON-BOARD DIAGNOSTICS - DIAGNOSTIC TROUBLE CODES AND STATUS LAMP DISPLAYS
CJ2 Dual Air Conditioning System is equipped with on-board diagnostics. The diagnostics feature can be used to display diagnostic trouble codes and system data parameters, clear diagnostic trouble codes, and command some HVAC programmer outputs.

When a diagnostic trouble code is set, the temperature flashes during the first two minutes of operation.

To enter diagnostic mode Follow the tree chart:
(NOTE: Press AUTO at any time to terminate diagnostic mode.)