| Component Location |

| 1. Engine room relay box |

| 2. ICU Junction block |
3. ICM relay box |
Repair procedures Inspection 1. Disconnect the negative (-) battery terminal. 2. Pull out the relay from the engine compartment relay box.
Troubleshooting Problem Symptoms Table Before replacing or repairing air conditioning components, first determine if the malfunction is due to the refrigerant charge, air flow or compressor. Use the table below to help you find the cause of the problem.
Repair procedures Oil Specification 1. The R-134a or R-1234yf system requires synthetic (PAG) compressor oil whereas the R-12 system requires mineral compressor oil. The two oils must never be mixed. 2.