Current DTC

Apply light to sunload sensor vertically, holding incandescent light of approximately 100 W about 100 mm (3.94 in.) away from sunload sensor.
Turn ON ignition switch.
Set temperature selector (1) to 25 °C (72 °F).
Push "AUTO" switch (2) and "DEF" switch (3) simultaneously.
NOTE: Step 3) and 4) must be finished within 15 seconds after completed Step 2).
Check for DTC (4) displayed on LCD referring to DTC TABLE .

Fig 1: Display DTC On LCD
Courtesy of SUZUKI OF AMERICA CORP.
NOTE:
- If DTC is checked within 8 seconds after ignition switch ON, "- - -" (5) is displayed on LCD for a few seconds. This means system check status of HVAC control module.
  
  Fig 2: Display "- - -" On LCD
  Courtesy of SUZUKI OF AMERICA CORP.
- If HVAC control module detects DTC, DTC is displayed on LCD for about 3 minutes continuously.
- If no abnormality is detected, "END" (1) is displayed on LCD for about 3 minutes continuously.
- When HVAC control module detects 2 or more DTC, each one is displayed once starting from the one of higher priority order.
- DTC is displayed on LCD by following steps.
  1. Higher priority DTC displays for 4 seconds.
  2. No DTC displays for 0.5 second.
  3. Next priority DTC displays for 4 seconds.
  4. No DTC displays for 0.5 second.
  5. As well as above description, all detected DTC is displayed.
  6. After all detected DTC is displayed, "END" is displayed for 4 seconds.
  7. DTC display is repeated in same steps for about 3 minutes.
    
    Fig 3: Display "END"
    Courtesy of SUZUKI OF AMERICA CORP.
- HVAC control module cancels DTC display at any of following conditions.
  - Ignition switch is turned to "OFF" position.
  - Both "AUTO" switch and "DEF" switch are pushed simultaneously.
After completing above check, turn ignition switch to "OFF" position.