Honda Pilot: A/C System Inspection
Honda Pilot 2016-2022 (YF5/YF6) Service Manual / Inspection Info / A/C System Inspection
Inspection
NOTE:
- For A/C system noise, go to the A/C System Noise Check.
- Check for climate control DTCs using the Self-Diagnostic
- Function. If there are any DTCs, go to the appropriate troubleshooting.
1. A/C System - Inspect
Before troubleshooting any problem with the A/C system, do the following to check if there is anything wrong with the A/C system. If any malfunctions are found while performing the checks, correct them referring to "Actions to take" in the table given below.
| Inspection area | Check for | Actions to take |
| Fresh air intake for the HVAC unit (at the base of the windshield) | Leaves or debris blocking the air intake | Remove any blockage. |
| A/C lines and hoses | Kinks or sharp bends | Replace the A/C lines and hoses that are kinked or bent. |
|
Stains at the components or joints that may indicate a refrigerant or an A/C compressor oil leak | Do the Refrigerant Leak Check to confirm the leak(s). |
| Drive belt |
|
Inspect the drive belt. |
| A/C condenser | Dirt in the fins, or material clogging the fins (dirt, insects, etc.) | Clean the fins NOTE:
|
| Fin damage, bent fins | Try to comb them straight NOTE: If the fins cannot be straightened, replace the A/C condenser. |
|
| Visible damage to the A/C condenser | Do the Refrigerant Leak Check to check for leaks. If the A/C condenser is leaking, replace the A/C condenser. | |
| A/C compressor clutch armature plate engagement | Check that the A/C compressor clutch armature plate engages and is rotating at the same speed as the clutch pulley. |
|
| A/C condenser fan and radiator fan | Check that the A/C radiator and condenser fans operate when the A/C compressor clutch is engaged and blow air toward the engine compartment. |
|
| Dust and pollen filter | The dust and pollen filter is clogged or restricted. | Replace the dust and pollen filter. |
| Blower fan | Check that the A/C operates at each
position of the fan control icon (except
OFF). If the A/C does not operate at all
fan control icon positions, refer to the
symptom troubleshooting. NOTE: Start the engine, turn the A/C system on, and allow it to run for a few minutes and reach stable operation. |
Refer to the symptom troubleshooting. |
Honda Pilot 2016-2022 (YF5/YF6) Service Manual
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