Contents Wiring diagrams Section: Manual HVAC System All sections

Heating/air Conditioning: Overview Honda Pilot I

Manual HVAC System 9 illustrations ~190 words

Scheme 1

Scheme 1: Special Tools

Scheme 2

Scheme 2: Component Location Index

Scheme 3

Scheme 3

Scheme 4

Scheme 4

System Description

The air conditioning system removes heat from the passenger compartment by circulating refrigerant through the system as shown.

Scheme 5

Scheme 5: System Description

This vehicle uses HFC-134a (R-134a) refrigerant which does not contain chlorofluorocarbons. Pay attention to the following service items

  1. Do not mix refrigerants CFC-12 (R-12) and HFC-134a (R-134a). They are not compatible.
  2. Use only the recommended polyalkyleneglycol (PAG) refrigerant oil (DENSO ND-OIL 8) designed for the R-134a compressor. Intermixing the recommended (PAG) refrigerant oil with any other refrigerant oil will result in compressor failure.
  3. All A/C system parts (compressor, discharge line, suction line, evaporator, condenser, receiver/dryer, expansion valve, O-rings for joints) are designed for refrigerant R-134a. Do not exchange with R-12 parts.
  4. Use a halogen gas leak detector designed for refrigerant R-134a.
  5. R-12 and R-134a refrigerant servicing equipment are not interchangeable. Use only a recovery/recycling/charging station that is U.L.-listed and is certified to meet the requirements of SAE J2210 to service R-134a air conditioning system.
  6. Always recover the refrigerant R-134a with an approved recovery/recycling/charging station before disconnecting any A/C fitting.

Scheme 6

Scheme 6: Heater Control Panel Inputs & Outputs

Scheme 7

Scheme 7

Scheme 8

Scheme 8: Circuit Diagram

Scheme 9

Scheme 9