Toyota Corolla Cross: Refrigerant Pressure Sensor Circuit Short to Ground (P053011)
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 |
|---|---|---|---|---|
| P053011 |
Refrigerant Pressure Sensor Circuit Short to Ground |
Diagnosis Condition:
Malfunction Status:
Detection Time:
|
| Memorized |
WIRING DIAGRAM
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PROCEDURE
| 1. |
CHECK REFRIGERANT PRESSURE |
(a) Install a manifold gauge set.
(b) Read the Data List according to the display on the GTS.
Body Electrical > Air Conditioner > Data List|
Tester Display | Measurement Item |
Range | Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Regulator Pressure Sensor |
Air conditioner pressure sensor |
Min.: -32768 kPa(gauge) Max.: 32767 kPa(gauge) |
Actual refrigerant pressure displayed |
|
|
Tester Display |
|---|
| Regulator Pressure Sensor |
(c) Compare the values displayed in the Data List and on the manifold gauge set.
|
Result | Proceed to |
|---|---|
|
The values displayed in the Data List and on the manifold gauge set does not match |
A |
| The values displayed in the Data List and on the manifold gauge set match |
B |
| B |
.gif) | INSPECT REFRIGERANT PRESSURE WITH MANIFOLD GAUGE SET |
|
.gif)
| 2. |
READ VALUE USING GTS (REGULATOR PRESSURE SENSOR) |
(a) Read the Data List according to the display on the GTS.
Body Electrical > Air Conditioner > Data List|
Tester Display | Measurement Item |
Range | Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Regulator Pressure Sensor |
Air conditioner pressure sensor |
Min.: -32768 kPa(gauge) Max.: 32767 kPa(gauge) |
Actual refrigerant pressure displayed |
|
|
Tester Display |
|---|
| Regulator Pressure Sensor |
OK:
Disconnecting the A61 connector of the air conditioner pressure sensor causes the Data List value to change.
|
Result | Proceed to |
|---|---|
|
Regulator pressure sensor value changes |
A |
| Regulator pressure sensor value does not change |
B |
| B |
| GO TO STEP 5 |
|
| 3. |
CHECK TERMINAL VOLTAGE (AIR CONDITIONER PRESSURE SENSOR) |
| (a) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
.png)
| OK | | REPLACE AIR CONDITIONER PRESSURE SENSOR |
|
| 4. |
CHECK HARNESS AND CONNECTOR (AIR CONDITIONER PRESSURE SENSOR - AIR CONDITIONING AMPLIFIER ASSEMBLY) |
(a) Disconnect the I48 air conditioning amplifier assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
A61-3 (+) - I48-11 (S5-3) |
Always | Below 1 Ω |
| OK | | REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
| 5. |
CHECK TERMINAL VOLTAGE (AIR CONDITIONING AMPLIFIER ASSEMBLY) |
| (a) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
.png)
| OK | | REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY |
|
| 6. |
CHECK HARNESS AND CONNECTOR (AIR CONDITIONER PRESSURE SENSOR - AIR CONDITIONING AMPLIFIER ASSEMBLY) |
(a) Disconnect the I48 air conditioning amplifier assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
A61-2 (PR) or I48-6 (PRE) - Other terminals and body ground |
Always | 10 kΩ or higher |
| OK | | REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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