RM38N0EC _58 Vehicle Interior _111841 HEATING / AIR CONDITIONING _0499788 AIR CONDITIONING SYSTEM(for Gasoline Model) C

HEATING / AIR CONDITIONING  AIR CONDITIONING SYSTEM(for Gasoline Model)  P053015  Refrigerant Pressure Sensor Circuit Short to Battery or Open  


DESCRIPTION

The air conditioner pressure sensor, which is installed to the high pressure side pipe to detect refrigerant pressure, sends a refrigerant pressure signal to the air conditioning amplifier assembly. The air conditioning amplifier assembly converts this signal to a pressure value according to the sensor characteristics and uses it to control the compressor.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory DTC Output from Priority
P053015 Refrigerant Pressure Sensor Circuit Short to Battery or Open Diagnosis Condition:

Ignition switch ON


Malfunction:

Open or short (+B) in air conditioner pressure sensor circuit


Detection Time:

Continuously for 4 seconds or more


·

Air conditioner pressure sensor

·

Harness or connector

·

Air conditioning amplifier assembly


Memorized Air Conditioner A

DTC Detection Condition Combination Table
Vehicle Condition
Pattern 1 Pattern 2
Diagnosis Condition Ignition switch ON ○ ○
Malfunction Open in air conditioner pressure sensor circuit ○ -
Short (+B) in air conditioner pressure sensor circuit - ○
Detection Time Continuously for 4 seconds or more Continuously for 4 seconds or more
Trip Count 1 trip 1 trip

HINT:

If the conditions of either of these patterns are detected, a DTC will be stored.


WIRING DIAGRAM

E432279E02
2.146,0.396 2.302,0.594 0.156,0.198 10 false 3 2.156,0.865 2.313,1.063 0.156,0.198 10 false 2 2.156,1.344 2.313,1.542 0.156,0.198 10 false 1 1.948,0.396 2.104,0.594 0.156,0.198 10 false + 1.854,0.865 2.125,1.063 0.271,0.198 10 false PR 1.958,1.323 2.115,1.521 0.156,0.198 10 false - 0.344,1.99 0.698,2.188 0.354,0.198 10 false A22 0.344,2.156 2.51,2.375 2.167,0.219 10 false Air Conditioner Pressure Sensor 4.813,1.99 7.021,2.229 2.208,0.24 10 false Air Conditioning Amplifier Assembly 4.667,0.313 4.917,0.542 0.25,0.229 10 false 11 4.698,0.792 4.917,0.99 0.219,0.198 10 false 6 4.656,1.26 4.917,1.469 0.26,0.208 10 false 15 5.01,0.875 5.385,1.063 0.375,0.188 10 false PRE 5.01,0.396 5.385,0.583 0.375,0.188 10 false S5-3 5.01,1.344 5.385,1.531 0.375,0.188 10 false SG-4 5.729,0.313 6.104,0.5 0.375,0.188 10 false 5 V 6.469,0.979 6.844,1.167 0.375,0.188 10 false AD 4.604,0.51 4.938,0.74 0.333,0.229 10 false E45 4.604,0.99 4.958,1.198 0.354,0.208 10 false E45 4.604,1.469 4.948,1.677 0.344,0.208 10 false E45

CAUTION / NOTICE / HINT

NOTICE:

If DTC P05347A is output at the same time, perform troubleshooting for DTC P05347A first.

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING SYSTEM (for Gasoline Model)>P05347A


HINT:

If a connector is disconnected or not installed correctly, securely connect it and check for DTCs.


PROCEDURE

1.CHECK COMPARE REFRIGERANT GAS PRESSURE VALUES SHOWN ON GTS AND MANIFOLD GAUGE SET

Pre-procedure1

a.

Install a manifold gauge set.


Procedure1

b.

Compare the values displayed in the Data List and on the manifold gauge.

Body Electrical > Air Conditioner > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Regulator Pressure Sensor Air conditioner pressure sensor -32.768 to 32.767 MPaG Actual refrigerant pressure displayed
·

Refrigerant line (gas leak etc.)

·

Air conditioner pressure sensor circuit malfunction


Body Electrical > Air Conditioner > Data List
Tester Display
Regulator Pressure Sensor
50003 450 106
Result:
Result Proceed to
Data List value and manifold gauge set value do not match A
Data List value matches manifold gauge set value B



Post-procedure1

c.

None



A

2.CHECK HARNESS AND CONNECTOR (AIR CONDITIONER PRESSURE SENSOR - BODY GROUND)

B

INSPECT REFRIGERANT PRESSURE WITH MANIFOLD GAUGE SET

Click hereVehicle Interior>HEATING / AIR CONDITIONING>REFRIGERANT>ON-VEHICLE INSPECTION


2.CHECK HARNESS AND CONNECTOR (AIR CONDITIONER PRESSURE SENSOR - BODY GROUND)

Pre-procedure1

a.

Disconnect the A22 air conditioner pressure sensor connector.


Procedure1

b.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(A22)Location & Routing

Click Connector(A22)Engine Compartment>Engine Room Main Wire / Transmission Wire>Air Conditioning Pressure Sensor

A22-1 (-) - Body ground Always Below 1 Ω


Result:
Proceed to
OK
NG



Post-procedure1

c.

None



OK

3.CHECK HARNESS AND CONNECTOR (AIR CONDITIONER PRESSURE SENSOR - BODY GROUND)

NG

8.CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - AIR CONDITIONER PRESSURE SENSOR)
3.CHECK HARNESS AND CONNECTOR (AIR CONDITIONER PRESSURE SENSOR - BODY GROUND)

Pre-procedure1

a.

Disconnect the A22 air conditioner pressure sensor connector.


Procedure1

b.

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

Standard Voltage:
Tester Connection Condition Specified Condition

Click Location & Routing(A22)Location & Routing

Click Connector(A22)Engine Compartment>Engine Room Main Wire / Transmission Wire>Air Conditioning Pressure Sensor

A22-2 (PR) - Body ground Ignition switch ON 3.0 to 5.25 V


Result:
Result Proceed to
A22-2 (PR) - Body ground is more than 5.25 V A
A22-2 (PR) - Body ground is more than or equal to 3.0 and less than or equal to 5.25 V B
A22-2 (PR) - Body ground is less than 3.0 V C



Post-procedure1

c.

None



A

4.CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - AIR CONDITIONER PRESSURE SENSOR)

B

5.CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (INTERNAL CIRCUIT RESISTANCE)

C

7.CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - AIR CONDITIONER PRESSURE SENSOR)
4.CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - AIR CONDITIONER PRESSURE SENSOR)

Pre-procedure1

a.

Disconnect the A22 air conditioner pressure sensor connector.


b.

Disconnect the E45 air conditioning amplifier assembly connector.


Procedure1

c.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(A22,E45)Location & Routing

Click Connector(A22)Engine Compartment>Engine Room Main Wire / Transmission Wire>Air Conditioning Pressure Sensor

Click Connector(E45)Instrument Panel>Instrument Panel Wire / Radio Wiring Sub-Assy / Telephone Computer Wire>Air Conditioning Amplifier Assembly

A22-2 (PR) or E45-6 (PRE) - Other terminals and body ground Always 10 kΩ or higher


Result:
Proceed to
OK
NG



Post-procedure1

d.

None



OK

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING AMPLIFIER>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (INTERNAL CIRCUIT RESISTANCE)

Pre-procedure1

a.

Disconnect the A22 air conditioner pressure sensor connector.


Procedure1

b.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(A22)Location & Routing

Click Connector(A22)Engine Compartment>Engine Room Main Wire / Transmission Wire>Air Conditioning Pressure Sensor

A22-3 (+) - A22-2 (PR) Ignition switch off 180 to 220 kΩ


HINT:

After turning the ignition switch off, wait at least 30 seconds before performing the measurement.


Result:
Proceed to
OK
NG



Post-procedure1

c.

None



OK

REPLACE AIR CONDITIONER PRESSURE SENSOR

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING PRESSURE SENSOR>REMOVAL


NG

6.CHECK HARNESS AND CONNECTOR (AIR CONDITIONER PRESSURE SENSOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)
6.CHECK HARNESS AND CONNECTOR (AIR CONDITIONER PRESSURE SENSOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)

Pre-procedure1

a.

Disconnect the A22 air conditioner pressure sensor connector.


b.

Disconnect the E45 air conditioning amplifier assembly connector.


Procedure1

c.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(A22,E45)Location & Routing

Click Connector(A22)Engine Compartment>Engine Room Main Wire / Transmission Wire>Air Conditioning Pressure Sensor

Click Connector(E45)Instrument Panel>Instrument Panel Wire / Radio Wiring Sub-Assy / Telephone Computer Wire>Air Conditioning Amplifier Assembly

A22-2 (PR) - A22-3 (+) Always 10 kΩ or higher
E45-6 (PRE) - E45-11 (S5-3) Always 10 kΩ or higher


Result:
Proceed to
OK
NG



Post-procedure1

d.

None



OK

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING AMPLIFIER>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - AIR CONDITIONER PRESSURE SENSOR)

Pre-procedure1

a.

Disconnect the A22 air conditioner pressure sensor connector.


b.

Disconnect the E45 air conditioning amplifier assembly connector.


Procedure1

c.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(A22,E45)Location & Routing

Click Connector(A22)Engine Compartment>Engine Room Main Wire / Transmission Wire>Air Conditioning Pressure Sensor

Click Connector(E45)Instrument Panel>Instrument Panel Wire / Radio Wiring Sub-Assy / Telephone Computer Wire>Air Conditioning Amplifier Assembly

A22-2 (PR) - E45-6 (PRE) Always Below 1 Ω


Result:
Proceed to
OK
NG



Post-procedure1

d.

None



OK

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING AMPLIFIER>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

8.CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - AIR CONDITIONER PRESSURE SENSOR)

Pre-procedure1

a.

Disconnect the A22 air conditioner pressure sensor connector.


b.

Disconnect the E45 air conditioning amplifier assembly connector.


Procedure1

c.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(A22,E45)Location & Routing

Click Connector(A22)Engine Compartment>Engine Room Main Wire / Transmission Wire>Air Conditioning Pressure Sensor

Click Connector(E45)Instrument Panel>Instrument Panel Wire / Radio Wiring Sub-Assy / Telephone Computer Wire>Air Conditioning Amplifier Assembly

A22-1 (-) - E45-15 (SG-4) Always Below 1 Ω


Result:
Proceed to
OK
NG



Post-procedure1

d.

None



OK

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING AMPLIFIER>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR