RM3660EC _58 Vehicle Interior _080733 HEATING / AIR CONDITIONING _0598792 AIR CONDITIONING SYSTEM(for HV Model (8ZR-FXE)) C

HEATING / AIR CONDITIONING  AIR CONDITIONING SYSTEM(for HV Model (8ZR-FXE))  P053015  Refrigerant Pressure Sensor Circuit Short to Battery or Open  


DESCRIPTION

The air conditioning 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
P053015 Refrigerant Pressure Sensor Circuit Short to Battery or Open Diagnosis Condition:

Ignition switch ON


Malfunction:

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


Detection Time:

Continuously for 4 seconds or more


·

Air conditioning pressure sensor

·

Harness or connector

·

Air conditioning amplifier assembly


Memorized

DTC Detection Condition Combination Table
Vehicle Condition
Pattern 1 Pattern 2
Diagnosis Condition Ignition switch ON ○ ○
Malfunction Open in air conditioning pressure sensor circuit ○ -
Short (+B) in air conditioning 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

E432279E13
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 A61 0.344,2.167 2.563,2.458 2.219,0.292 10 false Air Conditioning Pressure Sensor 4.813,1.99 7.021,2.229 2.208,0.24 10 false Air Conditioning Amplifier Assembly 4.646,0.313 4.896,0.542 0.25,0.229 10 false 15 4.646,0.792 4.896,0.99 0.25,0.198 10 false 16 4.656,1.26 4.917,1.469 0.26,0.208 10 false 13 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 4.635,0.51 4.969,0.74 0.333,0.229 10 false I49 4.635,0.99 4.99,1.198 0.354,0.208 10 false I49 4.635,1.469 4.979,1.677 0.344,0.208 10 false I49

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 HV Model (8ZR-FXE))>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
a.

Install a manifold gauge set.

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


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 conditioning pressure sensor -32.768 to 32.767 MPaG Actual refrigerant pressure displayed
·

Refrigerant line (gas leak etc.)

·

Air conditioning 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



A

2.CHECK HARNESS AND CONNECTOR (AIR CONDITIONING 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 CONDITIONING PRESSURE SENSOR - BODY GROUND)
a.
E432367C35
1.448,0.26 1.948,0.51 0.5,0.25 1.031,1.521 1.354,1.521 1.354,1.521 1.542,1.104 true 1.594,0.313 2.052,0.51 0.458,0.198 10 false A61 0.896,1.438 1.354,1.635 0.458,0.198 10 false - 0.625,0.292 1.083,0.49 0.458,0.198 10 false *a
*a Front view of wire harness connector
(to Air Conditioning Pressure Sensor)


Disconnect the A61 air conditioning pressure sensor connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
A61-1 (-) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

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

NG

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

Disconnect the A61 air conditioning pressure sensor connector.


b.
E432367C34
1.448,0.26 1.948,0.51 0.5,0.25 2.198,1.531 1.938,1.531 1.938,1.531 1.698,1.125 true 1.594,0.313 2.052,0.51 0.458,0.198 10 false A61 2.26,1.458 2.719,1.656 0.458,0.198 10 false PR 0.625,0.292 1.083,0.49 0.458,0.198 10 false *a
*a Front view of wire harness connector
(to Air Conditioning Pressure Sensor)


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

Standard Voltage:
Tester Connection Condition Specified Condition
A61-2 (PR) - Body ground Ignition switch ON 3.0 to 5.25 V



Result:
Result Proceed to
5.25 V or higher A
3.0 to 5.25 V B
Below 3.0 V C



A

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

B

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

C

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

Disconnect the A61 air conditioning pressure sensor connector.


b.

Disconnect the I49 air conditioning amplifier assembly connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
A61-2 (PR) or I49-16 (PRE) - Other terminals and body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



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)
a.

Disconnect the A61 air conditioning pressure sensor connector.


b.
E432367C36
1.448,0.26 1.948,0.51 0.5,0.25 2.344,1.521 2.083,1.521 2.083,1.521 1.844,1.115 true 2.229,1.76 1.969,1.76 1.969,1.76 1.698,1.115 true 1.594,0.313 2.052,0.51 0.458,0.198 10 false A61 2.406,1.438 2.865,1.635 0.458,0.198 10 false + 0.625,0.292 1.083,0.49 0.458,0.198 10 false *a 2.281,1.677 2.74,1.875 0.458,0.198 10 false PR
*a Front view of wire harness connector
(to Air Conditioning Pressure Sensor)


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

Standard Resistance:
Tester Connection Condition Specified Condition
A61-3 (+) - A61-2 (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



OK

REPLACE AIR CONDITIONING PRESSURE SENSOR

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


NG

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

Disconnect the A61 air conditioning pressure sensor connector.


b.

Disconnect the I49 air conditioning amplifier assembly connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
A61-2 (PR) - A61-3 (+) Always 10 kΩ or higher
I49-16 (PRE) - I49-15 (S5-3) Always 10 kΩ or higher



Result:
Proceed to
OK
NG



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 CONDITIONING PRESSURE SENSOR)
a.

Disconnect the A61 air conditioning pressure sensor connector.


b.

Disconnect the I49 air conditioning amplifier assembly connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
A61-2 (PR) - I49-16 (PRE) Always Below 1 Ω



Result:
Proceed to
OK
NG



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 CONDITIONING PRESSURE SENSOR)
a.

Disconnect the A61 air conditioning pressure sensor connector.


b.

Disconnect the I49 air conditioning amplifier assembly connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
A61-1 (-) - I49-13 (SG-4) Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY

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


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR