ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT REFRIGERANT PRESSURE WITH MANIFOLD GAUGE SET
HINT:
This is a method where a manifold gauge set is used to help locate the problem.
(a) Read the manifold gauge pressure when the following conditions are met:
Test conditions:
(1) Normally functioning refrigeration system Gauge Reading
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(2) Moisture is present in the refrigeration system.
Symptom |
Probable Cause |
Diagnosis |
Corrective Action |
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During operation, pressure on low pressure side cycles between normal and vacuum |
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(3) Insufficient cooling
Symptom |
Probable Cause |
Diagnosis |
Corrective Action |
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Gas leaks from the refrigeration system |
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(4) Poor circulation of refrigerant
Symptom |
Probable Cause |
Diagnosis |
Corrective Action |
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Refrigerant flow is obstructed by dirt inside the pipes of the condenser core |
Receiver is clogged |
Replace condenser |
(5) Refrigerant does not circulate.
Symptom |
Probable Cause |
Diagnosis |
Corrective Action |
---|---|---|---|
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Refrigerant does not circulate |
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(6) Refrigerant is overcharged or cooling effectiveness of condenser is insufficient.
Symptom |
Probable Cause |
Diagnosis |
Corrective Action |
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(7) Air is present in the refrigeration system.
Symptom |
Probable Cause |
Diagnosis |
Corrective Action |
---|---|---|---|
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Air in system |
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(8) Expansion valve malfunction
Symptom |
Probable Cause |
Diagnosis |
Corrective Action |
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Expansion valve may be stuck |
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Check expansion valve |
(9) Insufficient compressor compression
Symptom |
Probable Cause |
Diagnosis |
Corrective Action |
---|---|---|---|
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Internal leak in compressor |
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Replace compressor |
Gauge readings (Reference)
Height Control Sensor
Components
COMPONENTS
ILLUSTRATION
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY (for 2WD)
(a) Disconnect the connector.
(b) Remove the 3 nuts ...
Dtc Check / Clear
DTC CHECK / CLEAR
1. CHECK DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Read the DTC by following the prompts on the Techstream screen.
HINT:
Refer to the Techstream operator's manual for further details.
2. CL ...
Installation
INSTALLATION
PROCEDURE
1. INSTALL CHECK VALVE GROMMET
(a) Install a new check valve grommet to the brake booster assembly.
2. INSTALL BRAKE VACUUM CHECK VALVE ASSEMBLY
(a) Install the brake vacuum check valve assembly to the brake booster assembly.
3. IN ...