ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT REFRIGERANT PRESSURE
(a) This method uses a refrigerant recovery unit set to locate problem areas. Read the refrigerant pressure when the test conditions are established.
Test conditions:
Gauge readings (Reference):
Text in Illustration
*a |
Pressure on low-pressure side |
*b |
Blower HI Zone |
*c |
Blower LO Zone |
*d |
Pressure on high-pressure side |
(1) Normally functioning refrigeration system. Gauge Reading:
|
|
(2) The A/C system periodically changes between normal and improper function due to moisture in the refrigerant system.
Text in Illustration
*a |
Low Pressure Side |
*b |
High Pressure Side |
Symptom |
Probable Cause |
Diagnosis |
Corrective Action |
---|---|---|---|
During operation, pressure on low pressure side cycles between normal and vacuum |
Moisture in refrigeration system freezes at expansion valve orifice, causing temporary stop of cycle. However, when melted, normal state is restored. |
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|
(3) The A/C system does not function effectively due to insufficient refrigerant.
Text in Illustration
*a |
Low Pressure Side |
*b |
High Pressure Side |
Symptom |
Probable Cause |
Diagnosis |
Corrective Action |
---|---|---|---|
|
Gas leakage from refrigeration system |
|
|
(4) The A/C system does not function effectively due to poor circulation of the refrigerant.
Text in Illustration
*a |
Low Pressure Side |
*b |
High Pressure Side |
Symptom |
Probable Cause |
Diagnosis |
Corrective Action |
---|---|---|---|
|
Refrigerant flow obstructed by dirt in condenser |
Condenser clogged |
Replace condenser |
(5) The A/C system does not function or functions intermittently because the refrigerant does not circulate.
Text in Illustration
*a |
Low Pressure Side |
*b |
High Pressure Side |
Symptom |
Probable Cause |
Diagnosis |
Corrective Action |
---|---|---|---|
|
|
Refrigerant does not circulate |
|
(6) The A/C system does not function effectively due to the system being overcharged with refrigerant or insufficient cooling of the condenser.
Text in Illustration
*a |
Low Pressure Side |
*b |
High Pressure Side |
Symptom |
Probable Cause |
Diagnosis |
Corrective Action |
---|---|---|---|
Pressure extremely high on both low and high-pressure sides |
|
|
|
(7) The A/C system does not function due to air in the refrigeration system.
CAUTION:
The low-pressure piping may be very hot and cause serious burns.
NOTICE:
These gauge indications occur when the refrigeration system opens and the system is charged with refrigerant without vacuum purging.
Text in Illustration
*a |
Low Pressure Side |
*b |
High Pressure Side |
Symptom |
Probable Cause |
Diagnosis |
Corrective Action |
---|---|---|---|
|
Air in refrigeration system |
|
|
(8) The A/C system does not function effectively due to an expansion valve malfunction.
Text in Illustration
*a |
Low Pressure Side |
*b |
High Pressure Side |
Symptom |
Probable Cause |
Diagnosis |
Corrective Action |
---|---|---|---|
|
Problem with expansion valve |
|
Replace expansion valve |
(9) The A/C system does not function due to a defective compressor.
Text in Illustration
*a |
Low Pressure Side |
*b |
High Pressure Side |
Symptom |
Probable Cause |
Diagnosis |
Corrective Action |
---|---|---|---|
|
Internal leakage in compressor |
|
Repair or replace compressor |
Short to +B in Buzzer (C1ABD,C1ABE)
DESCRIPTION
DTC C1ABD is stored when the blind spot monitor sensor RH detects a
+B short in rear cross traffic alert buzzer (blind spot monitor buzzer)
circuit.
DTC C1ABE is stored when the blind spot monitor sensor RH detects a
ground short or open in rear cross traffic aler ...
Confirm Vehicle Headunit Functionality
PROCEDURE
1.
CHECK CUSTOMER'S CELLULAR PHONE COMPATIBILITY
(a) Go to TIS "Bluetooth" Compatibility Portal and check if the cellular phone
is compatible.
Result
Result
Proceed to
Cellular phone is compatible
...
Components
COMPONENTS
ILLUSTRATION
*1
NO. 1 ENGINE UNDER COVER SUB-ASSEMBLY
*2
OIL PAN COVER SILENCER
*3
NO. 1 OIL PAN PLUG
-
-
N*m (kgf*cm, ft.*lbf): Specified torque
-
...