DTC P0532:00 [PCM (SKYACTIV-D 2.2)]

id0102j5850200

DTC P0532:00

Refrigerant pressure sensor circuit low input

DETECTION CONDITION

•  With the following conditions met, the A/C sensor voltage is less than 0.07 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

•  Short to ground in wiring harness between the following terminals:

―  Refrigerant pressure sensor terminal A and PCM terminal 2BB

―  Refrigerant pressure sensor terminal B and PCM terminal 2BH

•  PCM connector or terminal malfunction

•  Short circuit in Refrigerant pressure sensor power supply circuit and ground circuit

•  Open circuit in wiring harness between the following terminals:

―  Refrigerant pressure sensor terminal A and PCM terminal 2BB

―  Refrigerant pressure sensor terminal B and PCM terminal 2BH

•  Refrigerant pressure sensor malfunction

•  PCM malfunction

DTC P0532:00	Refrigerant pressure sensor circuit low input
DETECTION CONDITION	• With the following conditions met, the A/C sensor voltage is less than 0.07 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 • Short to ground in wiring harness between the following terminals: ― Refrigerant pressure sensor terminal A and PCM terminal 2BB ― Refrigerant pressure sensor terminal B and PCM terminal 2BH • PCM connector or terminal malfunction • Short circuit in Refrigerant pressure sensor power supply circuit and ground circuit • Open circuit in wiring harness between the following terminals: ― Refrigerant pressure sensor terminal A and PCM terminal 2BB ― Refrigerant pressure sensor terminal B and PCM terminal 2BH • 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 CONDITION • 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 8.
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 8.
4	INSPECT REFRIGERANT PRESSURE SENSOR CIRCUIT FOR SHORT TO GROUND • Switch the ignition OFF. • Verify that the Refrigerant pressure sensor connector is disconnected. • Inspect for continuity between the following terminals (vehicle wiring harness) and ground. ― Refrigerant pressure sensor terminal A ― Refrigerant pressure sensor terminal B • 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 to ground 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 8.
4		No	Go to the next step.
5	INSPECT REFRIGERANT PRESSURE SENSOR SIGNAL CIRCUIT AND GROUND 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 A/C relay sensor terminals B, A (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 B and PCM terminal 2BH • Refrigerant pressure sensor terminal C and PCM terminal 2BD 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 8.
5		No	Go to the next step.
6	INSPECT REFRIGERANT PRESSURE SENSOR CIRCUIT FOR OPEN CIRCUIT • Verify that the Refrigerant pressure sensor connector and the PCM connector are disconnected. • Inspect the wiring harness for continuity between the following terminals (vehicle wiring harness side). ― Refrigerant pressure sensor terminal A and PCM terminal 2BB ― Refrigerant pressure sensor terminal B and PCM terminal 2BH • Is there continuity?	Yes	Go to the next step.
6		No	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 an open circuit to determine the malfunctioning location. ― Repair or replace the malfunctioning location. If there is no common connector: ― Repair or replace the wiring harness which has an open circuit. Go to Step 8.
7	INSPECT REFRIGERANT PRESSURE SENSOR • Reconnect all the disconnected connectors. • Inspect the Refrigerant pressure sensor. (See REFRIGERANT PRESSURE SENSOR INSPECTION [MANUAL AIR CONDITIONER].) (See REFRIGERANT PRESSURE SENSOR INSPECTION [FULL-AUTO AIR CONDITIONER].) • Is the Refrigerant pressure sensor normal?	Yes	Go to the next step.
7		No	Replace the Refrigerant pressure sensor, then go to the next step. (See REFRIGERANT PRESSURE SENSOR REMOVAL/INSTALLATION [MANUAL AIR CONDITIONER].) (See REFRIGERANT PRESSURE SENSOR REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER].)
8	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Reconnect all the disconnected connectors. • Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC. (See CLEARING DTC [PCM (SKYACTIV-D 2.2)].) • Start the engine. • Turn the A/C on. • Display the DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) • Has DTC P0532:00 been recorded?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
8		No	Go to the next step.
9	VERIFY OTHER DTCs • Has any other DTC or pending code been stored?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-D 2.2)].)
9		No	DTC troubleshooting completed.