Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Checking Pressures With RESTRICTOR And Accumulator - Internally Regulated Compressor
Connecting service station. Refer to A/C SERVICE STATION .
Observe test requirements. Refer to PRESSURES, CHECKING .
-- Refrigerant circuit, checking pressure with service station, refer to CHECKING PRESSURE WITH SERVICE STATION .
The pressures with the ignition turned off meet the specifications.
-- Start the engine.
-- Set engine speed to 2000 RPM.
-- Observe pressure gauge of service station.
Switching pressures for refrigerant circuit switches are vehicle-specific.
Connection with valve for low-pressure switch or at evaporator is only to be used for vehicles with no service connection on low-pressure side and inaccessible connection at compressor or accumulator (measurement accuracy). Applies only to certain vehicles, refer to [For engine(s) BPY, CETA, CCTA, CDMA, CEPB] Diagnosis and Testing (vehicle-specific repair information).
- Specified values for the refrigerant circuit pressures, refer to SPECIFIED VALUES WITH RESTRICTOR AND ACCUMULATOR - INTERNALLY REGULATED COMPRESSOR .
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.