Ridgeline 2007-2008

Procedure

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With Climate Control



Specific to:

Honda Ridgeline 2006-2008

The climate control unit has a self-diagnostic function. To run the self-diagnostic function, do the following.

  1. Turn the ignition switch OFF , and then ON .
  2.  
  3. Press and hold the OFF button. While holding the OFF button, press the recirculation button five times within 10 seconds. Release the OFF button, then the self-diagnostic begins. Wait for about one minute for the self-diagnostic to complete.
    NOTE
    The blower motor will run various speeds regardless of what the panel is displaying.

  4.  
  5. If there is any problem in the system, the temperature indicator will light up the segment (A through Q) corresponding to the error. The temperature indicator will then alternate every second between displaying ''88'' (all segments lit) and the error code segment (A through Q). To determine the meaning of the DTC, refer to the following charts.

    Click image to see an enlarged view

    Fig. Climate control system diagnosis-With climate control (Chart 1 of 2)



    Click image to see an enlarged view

    Fig. The temperature indicator will then alternate every second between displaying ''88'' (all segments lit) and the error code segment (A through Q)

  6.  
  7. If there are no problems detected, the segments will not illuminate, and the system will appear to be turned off.
  8.  
  9. Turn the ignition switch OFF to cancel the self-diagnostic function. After completing repair work, run the self-diagnostic function again to make sure that there are no other malfunctions.
  10.  

Without Climate Control



Specific to:

Honda Ridgeline 2006-2008

The HVAC control unit has a self-diagnostic function for heating, ventilation, and air conditioning system. To run the self-diagnostic function, do the following:

  1. Turn the ignition switch OFF .
  2.  
  3. Set the fan control dial OFF , the temperature control dial on MAX COOL .
  4.  
  5. Turn the ignition switch ON , and select the vent mode.
  6.  
  7. Press and hold the A/C button, then press the recirculation button five times within 10 seconds. Release the A/C buttons; the recirculation indicator blinks two times, then the self-diagnostic begins.
  8.  
  9. If there is any problem in the system after self-diagnostic is finished, the recirculation indicator will blink Diagnostic Trouble Code (DTC) 1 through 10.

    Click image to see an enlarged view

    Fig. Climate control system diagnosis-Without climate control

  10.  
  11. If no DTCs are found, the indicator will not blink.
  12.  
  13. Turn the ignition switch OFF to cancel the self-diagnostic function. After completing repair work, run the self-diagnostic function again to make sure that there are no other malfunctions.
  14.  

 
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