DTC P0533:00 [PCM (SKYACTIV-D 2.2)]

id0102j5850300

DTC P0533:00

Refrigerant pressure sensor circuit high input

DETECTION CONDITION

•  The Refrigerant pressure sensor voltage exceeds 4.96 V for a continuous 5 s.

―  The following DTCs are not detected

•  Constant voltage power supply control system: P0642:00, P0643:00

Diagnostic support note

•  This is a continuous monitor (other).

•  The check engine light does not illuminate.

•  FREEZE FRAME DATA/Snapshot data is available.

•  DTC is stored in the PCM memory.

FAIL-SAFE FUNCTION

•  Inhibits the A/C control.

POSSIBLE CAUSE

•  Refrigerant pressure sensor connector or terminal malfunction

•  PCM connector or terminal malfunction

•  Short to power supply in wiring harness between refrigerant pressure sensor terminal B and PCM terminal 2BH

•  Short circuit in refrigerant pressure sensor power supply circuit and signal circuit

•  Refrigerant pressure sensor malfunction

•  PCM malfunction

DTC P0533:00	Refrigerant pressure sensor circuit high input
DETECTION CONDITION	• The Refrigerant pressure sensor voltage exceeds 4.96 V for a continuous 5 s. ― The following DTCs are not detected • Constant voltage power supply control system: P0642:00, P0643:00 Diagnostic support note • This is a continuous monitor (other). • The check engine light does not illuminate. • FREEZE FRAME DATA/Snapshot data is available. • DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	• Inhibits the A/C control.
POSSIBLE CAUSE	• Refrigerant pressure sensor connector or terminal malfunction • PCM connector or terminal malfunction • Short to power supply in wiring harness between refrigerant pressure sensor terminal B and PCM terminal 2BH • Short circuit in refrigerant pressure sensor power supply circuit and signal circuit • Refrigerant pressure sensor malfunction • PCM malfunction

Diagnostic Procedure

Step

Inspection

Results

Action

1

RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION

Note

•  Recording can be facilitated using the screen capture function of the PC.

•  Record the freeze frame data/snap shot data.

—

Go to the next step.

2

INSPECT REFRIGERANT PRESSURE SENSOR CONNECTOR CONNECTION

•  Switch the ignition OFF.

•  Disconnect the Refrigerant pressure sensor connector.

•  Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection.

•  Is the connector normal?

Yes

Go to the next step.

No

Repair or replace the connector, then go to Step 7.

3

INSPECT PCM CONNECTOR CONDITION

•  Disconnect the PCM connector.

•  Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection.

•  Is the connector normal?

Yes

Go to the next step.

No

Repair or replace the connector, then go to Step 7.

4

INSPECT REFRIGERANT PRESSURE SENSOR SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY

•  Verify that the refrigerant pressure sensor connector and the PCM connector are disconnected.

•  Switch the ignition ON (engine off).

•  Measure the Refrigerant pressure sensor terminal B (vehicle wiring harness side) voltage.

•  Is the voltage 0 V?

Yes

Go to the next step.

No

Refer to the wiring diagram and verify if there is a common connector between refrigerant pressure sensor terminal B and PCM terminal 2BH.

If there is a common connector:

•  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to power supply to determine the malfunctioning location.

•  Repair or replace the malfunctioning location.

If there is no common connector:

•  Repair or replace the wiring harness which is shorted to the power supply.

Go to Step 7.

5

INSPECT REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT AND SIGNAL CIRCUIT FOR SHORT CIRCUIT

•  Verify that the Refrigerant pressure sensor connector and the PCM connector are disconnected.

•  Switch the ignition OFF.

•  Inspect for continuity between refrigerant pressure sensor terminals A and B (vehicle wiring harness side).

•  Is there continuity?

Yes

Refer to the wiring diagram and verify if there is a common connector between the following terminals.

•  Refrigerant pressure sensor terminal A and PCM terminal 2BB

•  Refrigerant pressure sensor terminal B and PCM terminal 2BH

If there is a common connector:

•  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short circuit to determine the malfunctioning location.

•  Repair or replace the malfunctioning location.

If there is no common connector:

•  Repair or replace the malfunctioning wiring harness.

Go to Step 7.

No

Go to the next step.

6

INSPECT REFRIGERANT PRESSURE SENSOR

•  Reconnect all the disconnected connectors.

•  Inspect the Refrigerant pressure sensor.

•  Is the Refrigerant pressure sensor normal?

Yes

Go to the next step.

No

Replace the Refrigerant pressure sensor, then go to the next step.

7

VERIFY THAT REPAIRS HAVE BEEN COMPLETED

•  Reconnect all the disconnected connectors.

•  Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC.

•  Start the engine.

•  Turn the A/C on.

•  Display the DTCs using the M-MDS.

•  Has DTC P0533:00 been recorded?

Yes

Repeat the inspection from Step 1.

•  If the malfunction recurs, replace the PCM, then go to the next step.

No

Go to the next step.

8

VERIFY OTHER DTCs

•  Has any other DTC or pending code been stored?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

No

DTC troubleshooting completed.

Step	Inspection	Results	Action
1	RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION Note • Recording can be facilitated using the screen capture function of the PC. • Record the freeze frame data/snap shot data.	—	Go to the next step.
2	INSPECT REFRIGERANT PRESSURE SENSOR CONNECTOR CONNECTION • Switch the ignition OFF. • Disconnect the Refrigerant pressure sensor connector. • Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection. • Is the connector normal?	Yes	Go to the next step.
2		No	Repair or replace the connector, then go to Step 7.
3	INSPECT PCM CONNECTOR CONDITION • Disconnect the PCM connector. • Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection. • Is the connector normal?	Yes	Go to the next step.
3		No	Repair or replace the connector, then go to Step 7.
4	INSPECT REFRIGERANT PRESSURE SENSOR SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY • Verify that the refrigerant pressure sensor connector and the PCM connector are disconnected. • Switch the ignition ON (engine off). • Measure the Refrigerant pressure sensor terminal B (vehicle wiring harness side) voltage. • Is the voltage 0 V?	Yes	Go to the next step.
4		No	Refer to the wiring diagram and verify if there is a common connector between refrigerant pressure sensor terminal B and PCM terminal 2BH. If there is a common connector: • Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to power supply to determine the malfunctioning location. • Repair or replace the malfunctioning location. If there is no common connector: • Repair or replace the wiring harness which is shorted to the power supply. Go to Step 7.
5	INSPECT REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT AND SIGNAL CIRCUIT FOR SHORT CIRCUIT • Verify that the Refrigerant pressure sensor connector and the PCM connector are disconnected. • Switch the ignition OFF. • Inspect for continuity between refrigerant pressure sensor terminals A and B (vehicle wiring harness side). • Is there continuity?	Yes	Refer to the wiring diagram and verify if there is a common connector between the following terminals. • Refrigerant pressure sensor terminal A and PCM terminal 2BB • Refrigerant pressure sensor terminal B and PCM terminal 2BH If there is a common connector: • Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short circuit to determine the malfunctioning location. • Repair or replace the malfunctioning location. If there is no common connector: • Repair or replace the malfunctioning wiring harness. Go to Step 7.
5		No	Go to the next step.
6	INSPECT REFRIGERANT PRESSURE SENSOR • Reconnect all the disconnected connectors. • Inspect the Refrigerant pressure sensor. • Is the Refrigerant pressure sensor normal?	Yes	Go to the next step.
6		No	Replace the Refrigerant pressure sensor, then go to the next step.
7	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Reconnect all the disconnected connectors. • Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC. • Start the engine. • Turn the A/C on. • Display the DTCs using the M-MDS. • Has DTC P0533:00 been recorded?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the PCM, then go to the next step.
7		No	Go to the next step.
8	VERIFY OTHER DTCs • Has any other DTC or pending code been stored?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
8		No	DTC troubleshooting completed.