RM36D0EC _58 Vehicle Interior _083104 HEATING / AIR CONDITIONING _0403076 AIR CONDITIONING PRESSURE SENSOR G

HEATING / AIR CONDITIONING  AIR CONDITIONING PRESSURE SENSOR  ON-VEHICLE INSPECTION  


PROCEDURE

Hide 88719A 1.INSPECT AIR CONDITIONER PRESSURE SENSOR

a.

Check the wire harness.

i.

Disconnect the A22 air conditioner pressure sensor connector.


ii.

Disconnect the G47 air conditioning amplifier assembly connector.


iii.
E409003C01
1.469,0.354 1.802,0.521 0.333,0.167 1.469,2.313 1.802,2.479 0.333,0.167 1.031,1.563 1.448,1.563 true 1.833,1.563 2.25,1.563 true 1.635,1.635 1.635,2.052 true 0.969,4.406 0.969,4.208 true 1.281,4.406 1.281,3.979 true 2.24,4.406 2.24,3.979 true 0.104,0.104 0.417,0.26 0.313,0.156 10 false *a 0.115,2.365 0.427,2.521 0.313,0.156 10 false *b 0.938,1.469 1.25,1.625 0.313,0.156 10 false - 1.552,2.052 1.865,2.208 0.313,0.156 10 false PR 2.281,1.479 2.594,1.635 0.313,0.156 10 false + 1.521,0.354 1.833,0.51 0.313,0.156 10 false A22 1.51,2.313 1.823,2.469 0.313,0.156 10 false G47 1.146,4.417 1.604,4.573 0.458,0.156 10 false PRE 2.083,4.417 2.458,4.573 0.375,0.156 10 false S5-3 0.792,4.417 1.208,4.625 0.417,0.208 10 false SG-4
*a Front view of wire harness connector
(to Air Conditioner Pressure Sensor)
*b Front view of wire harness connector
(to Air Conditioning Amplifier Assembly)


Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
A22-1 (-) - G47-15 (SG-4) Always Below 1 Ω
A22-2 (PR) - G47-6 (PRE)
A22-3 (+) - G47-11 (S5-3)
A22-1 (-) - Body ground 10 kΩ or higher
A22-2 (PR) - Body ground
A22-3 (+) - Body ground


If the resistance is not as specified, repair the wire harness.


iv.

Reconnect the G47 air conditioning amplifier assembly connector.


v.

Turn the ignition switch to ON.


vi.
E367318C07
1.521,0.354 1.854,0.521 0.333,0.167 1.885,1.594 2.313,1.594 true 0.125,0.135 0.438,0.292 0.313,0.156 10 false *a 1.563,0.354 1.875,0.51 0.313,0.156 10 false A22 2.344,1.51 2.656,1.667 0.313,0.156 10 false +
*a Front view of wire harness connector
(to Air Conditioner Pressure Sensor)


Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Condition Specified Condition
A22-3 (+) - Body ground Ignition switch ON 4.75 to 5.25 V


If the voltage is not as specified, repair the wire harness or replace air conditioning amplifier assembly.



b.

Check the air conditioner pressure sensor.

i.

Connect the connector to the air conditioner pressure sensor.


ii.

Install a manifold gauge set.


iii.

for HV Model:

Warm up the compressor.


iv.

for Gasoline Model:

Warm up the engine.


v.

Turn the A/C switch on.


vi.

Measure the voltage according to the value(s) in the table below.

HINT:

Check from the rear of the connector while it is connected to the air conditioning amplifier assembly.


Standard Voltage:
Tester Connection Condition Specified Condition

*Value when sensor power source voltage is 5 V

G47-6 (PRE) - G47-15 (SG-4) Refrigerant pressure: Normal pressure (less than 3025 kPa (30.8 kgf/cm2, 439 psi) and more than 176 kPa (1.8 kgf/cm2, 26 psi)) 0.62 to 4.73 V*
Refrigerant pressure: Abnormal pressure (below 176 kPa (1.8 kgf/cm2, 26 psi), or 3025 kPa (30.8 kgf/cm2, 439 psi) or higher) Below 0.85 V, or 4.50 V or higher*


E409004C02
3.417,0.75 3.75,0.917 0.333,0.167 3.417,3.75 3.75,3.917 0.333,0.167 3.229,1.938 3.229,1.167 3.229,1.167 3.396,1.167 true 3.313,2.979 3.313,2.146 true 4.021,6.031 4.021,5.198 true 3.938,4.99 3.938,4.219 3.938,4.219 4.104,4.219 true 0.177,0.677 0.552,0.917 0.375,0.24 12 false *A 0.177,3.677 0.552,3.917 0.375,0.24 12 false *B 3.167,3 3.625,3.198 0.458,0.198 10 false SG-4 4.146,4.156 4.604,4.354 0.458,0.198 10 false PRE 3.875,6.052 4.333,6.25 0.458,0.198 10 false SG-4 3.427,1.115 3.885,1.313 0.458,0.198 10 false PRE 3.458,0.771 3.917,0.969 0.458,0.198 10 false G47 3.469,3.771 3.927,3.969 0.458,0.198 10 false G47 0.146,0.115 0.521,0.354 0.375,0.24 10 false *a
*A w/o Climate Control Seat System *B w/ Climate Control Seat System
*a Component with harness connected
(Air Conditioning Amplifier Assembly)
- -


If the voltage is not as specified, replace the air conditioner pressure sensor.