For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
DEFINITION: The low and the high side pressures are both higher than normal.

• | Restricted Condenser Air Flow

• | Cooling Fan Malfunction

• | Expansion Device Malfunction

1 | Were you sent here from the A/C System Performance Test? | Go to Step 2 | Go to Air Conditioning (A/C) System Performance Test
2 |

1. Start the engine.
2. Make sure that the A/C is ON.
3. Inspect for proper cooling fan operation. Refer to Cooling System Description and Operation .

Are the cooling fans ON and operating properly?

Go to Step 3

Go to Step 5

3 | Visually inspect for the following conditions:

• | Damaged condenser cooling fins

• | Missing or misaligned air baffles

• | Restricted front end air flow

Do any of these conditions exist?

Go to Step 4

Go to Step 6

4 | Repair the air flow restriction. Is the repair complete? | Go to Step 7 | --
5 | Repair the fault to the cooling fan operation. Refer to Cooling Fan Inoperative . Is the repair complete? | Go to Step 7 | --
6 | Air is in the refrigerant system, or the system is overcharged. Refer to the view screen on J 43600 ACR 2000 Air Conditioning Service Center for foreign gas content in the refrigerant. Recover and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .

Is the repair complete?

Go to Step 7

--

7 |

1. Record the low and high side pressures and the instrument panel (I/P) outlet air temperature after you have performed the repairs.
2. Compare the pressures and the panel outlet temperature to those listed in the A/C Performance Chart. Refer to Air Conditioning (A/C) System Performance Test .

Are the readings within the specified ranges listed in the A/C Performance table?

Go to Step 8

Go to Air Conditioning (A/C) System Performance Test

8 | Operate the system in order to verify the repair. Did you find and correct the condition? | System OK | Go to Symptoms - HVAC Systems - Automatic