RM3660EC _58 Vehicle Interior _080733 HEATING / AIR CONDITIONING _0393742 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 A61 air conditioner pressure sensor connector.


ii.

Disconnect the I48 air conditioning amplifier assembly connector.


iii.
E399448C01
1.521,0.167 1.917,0.354 0.396,0.188 1.542,1.583 1.875,1.76 0.333,0.177 0.667,3.188 1.25,3.188 1.25,3.188 1.25,2.854 true 2.417,1.448 1.917,1.448 1.917,1.448 1.917,1.031 true 2.479,0.75 1.729,0.75 1.729,0.75 1.729,0.875 true 0.698,1.854 1.448,1.854 1.448,1.854 1.448,2.521 true 2.708,1.854 2.125,1.854 2.125,1.854 2.125,2.521 true 1.073,1.448 1.531,1.448 1.531,1.448 1.531,1.031 true 0.521,0.25 0.833,0.406 0.313,0.156 10 false *a 0.5,1.51 0.813,1.667 0.313,0.156 10 false *b 1.583,0.188 2.042,0.385 0.458,0.198 10 false A61 1.615,1.583 1.958,1.75 0.344,0.167 10 false I48 0.917,1.354 1.073,1.552 0.156,0.198 10 false - 2.51,1.365 2.667,1.563 0.156,0.198 10 false + 2.521,0.667 2.833,0.865 0.313,0.198 10 false PR 0.292,3.115 0.74,3.313 0.448,0.198 10 false SG-4 0.333,1.781 0.792,1.979 0.458,0.198 10 false PRE 2.771,1.781 3.219,1.948 0.448,0.167 10 false S5-3
*a Front view of wire harness connector
(Air Conditioner Pressure Sensor)
*b Front view of wire harness connector
(Air Conditioning Amplifier Assembly)


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

Standard Resistance:
Tester Connection Condition Specified Condition
A61-1 (-) - I48-15 (SG-4) Always Below 1 Ω
A61-2 (PR) - I48-6 (PRE) Always Below 1 Ω
A61-3 (+) - I48-11 (S5-3) Always Below 1 Ω
A61-1 (-) or I48-15 (SG-4) - Other terminals and body ground Always 10 kΩ or higher
A61-2 (PR) or I48-6 (PRE) - Other terminals and body ground Always 10 kΩ or higher
A61-3 (+) or I48-11 (S5-3) - Other terminals and body ground Always 10 kΩ or higher


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


iv.

Connect the I48 air conditioning amplifier assembly connector.


v.

Turn the power switch*1 or ignition switch*2 to on (IG).


vi.
E399449C01
1.521,0.229 1.906,0.427 0.385,0.198 2.427,1.99 1.927,1.99 1.927,1.99 1.927,1.49 true 0.521,0.26 0.833,0.417 0.313,0.156 10 false *a 1.573,0.24 1.948,0.458 0.375,0.219 10 false A61 2.51,1.906 2.667,2.104 0.156,0.198 10 false +
*a Front view of wire harness connector
(Air Conditioner Pressure Sensor)


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

Standard Voltage:
Tester Connection Condition Specified Condition

*1: for HV Model

*2: for Gasoline Model

A61-3 (+) - Body ground Power switch on (IG)*1 4.75 to 5.25 V
Ignition switch on (IG)*2


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



b.

Check the air conditioner pressure sensor.

i.

Connect the A61 air conditioner pressure sensor connector.


ii.

Install a manifold gauge set.


iii.

Turn the A/C switch on.


iv.

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

E399450C01
2.156,0.333 2.51,0.5 0.354,0.167 2.542,1.406 2.542,0.74 2.542,0.74 1.208,0.74 true 1.26,1.823 2.677,1.823 2.677,1.823 2.677,1.656 true 0.521,0.26 0.833,0.417 0.313,0.156 10 false *a 2.24,0.333 2.698,0.531 0.458,0.198 10 false I48 0.854,0.656 1.313,0.854 0.458,0.198 10 false PRE 0.865,1.74 1.323,1.948 0.458,0.208 10 false SG-4
*a Component with harness connected
(Air Conditioning Amplifier Assembly)
- -


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

*: While sensor voltage is 5 V.

I48-6 (PRE) - I48-15 (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*


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