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

1.521,0.167 1.917,0.354 0.396,0.188 1.542,1.583 1.875,1.76 0.333,0.177 0.667,3.25 0.854,3.25 0.854,3.25 1.25,2.854 true 2.417,1.448 2.24,1.448 2.24,1.448 1.917,1.031 true 2.552,0.51 2.375,0.51 2.375,0.51 1.729,0.875 true 0.698,1.854 0.906,1.854 0.906,1.854 1.448,2.521 true 2.708,1.854 2.531,1.854 2.531,1.854 2.125,2.521 true 1.073,1.448 1.271,1.448 1.271,1.448 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 + 2.604,0.438 2.917,0.635 0.313,0.198 10 false PR 0.313,3.167 0.76,3.365 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.

1.521,0.229 1.906,0.427 0.385,0.198 2.427,1.99 2.271,1.99 2.271,1.99 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
A61-3 (+) - Body ground	Ignition switch ON	4.75 to 5.25 V

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

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

2.156,0.333 2.51,0.5 0.354,0.167 2.542,1.406 1.417,0.74 1.417,0.74 1.208,0.74 true 1.49,2.052 1.677,2.052 1.677,2.052 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 1.146,1.969 1.604,2.177 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
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))	0.74 to 4.61 V

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

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

3.344,0.031 3.854,0.281 0.51,0.25 3.323,1.188 3.833,1.438 0.51,0.25 3.792,0.698 4.25,0.583 true 3.365,0.708 2.969,0.583 true 4.094,1.813 4.667,1.083 true 4.25,2.042 4.25,2.458 true 4.219,1.802 4.698,1.313 true 3.635,0.688 4.125,0.323 true 4.323,0.521 4.479,0.719 0.156,0.198 10 false + 2.823,0.469 2.979,0.667 0.156,0.198 10 false - 2.417,0.083 2.76,0.292 0.344,0.208 10 false *a 3.479,0.073 3.823,0.281 0.344,0.208 10 false A61 3.438,1.229 3.781,1.438 0.344,0.208 10 false I150 1.865,1.323 2.208,1.531 0.344,0.208 10 false *b 4.698,1.01 5.188,1.26 0.49,0.25 10 false S5-3 4.083,2.5 4.583,2.667 0.5,0.167 10 false PRE 4.75,1.229 5.24,1.479 0.49,0.25 10 false SG-4 4.177,0.219 4.667,0.469 0.49,0.25 10 false PR

*a

Component without harness connected (Air Conditioner Pressure Sensor)

*b

Component without harness connected (Air Conditioning Amplifier Assembly)

Standard Resistance:

Tester Connection	Condition	Specified Condition
A61-1 (-) - I150-12 (SG-4)	Always	Below 1 Ω
A61-2 (PR) - I150-36 (PRE)	Always	Below 1 Ω
A61-3 (+) - I150-11 (S5-3)	Always	Below 1 Ω
A61-1 (-) - Body ground	Always	10 kΩ or higher
I150-12 (SG-4) - Body ground	Always	10 kΩ or higher
A61-2 (PR) - Body ground	Always	10 kΩ or higher
I150-36 (PRE) - Body ground	Always	10 kΩ or higher
A61-3 (+) - Body ground	Always	10 kΩ or higher
I150-11 (S5-3) - Body ground	Always	10 kΩ or higher

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

1.479,0.188 1.979,0.448 0.5,0.26 2.396,1.896 1.99,1.458 true 0.521,0.26 0.833,0.417 0.313,0.156 10 false *a 1.604,0.229 1.979,0.448 0.375,0.219 10 false A61 2.438,1.885 2.594,2.083 0.156,0.198 10 false +

*a	Component without harness connected (Air Conditioner Pressure Sensor)

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

Standard Voltage:

Tester Connection	Condition	Specified Condition
A61-3(+) - Body ground	IG ON	4.75 to 5.25 V

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

3.333,0.333 3.833,0.583 0.5,0.25 2.135,0.833 2.938,1.281 true 2.156,1.979 2.865,1.51 true 0.521,0.26 0.833,0.417 0.313,0.156 10 false *a 3.458,0.375 3.917,0.573 0.458,0.198 10 false I150 1.844,1.938 2.302,2.135 0.458,0.198 10 false PRE 1.76,0.729 2.219,0.938 0.458,0.208 10 false SG-4

*a

Component with harness connected (Air Conditioning Amplifier Assembly)

-

-

Standard Voltage:

Tester Connection	Condition	Specified Condition
I150-36 (PRE) - I150-12 (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))	0.74 to 4.61 V

HINT:

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

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