DTC P0532:00 [MZI-3.7]

id0102d2850200

DTC P0532:00 | A/C refrigerant pressure sensor circuit low
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DETECTION CONDITION | • A DTC is stored if the refrigerant pressure sensor output voltage is below the calibrated level.
POSSIBLE CAUSE | • Connector or terminal malfunction • Short to ground circuit between refrigerant pressure sensor terminal B and PCM terminal 1M • Open circuit between refrigerant pressure sensor terminal B and PCM terminal 1M • Open circuit between refrigerant pressure sensor terminal C and PCM terminal 1BJ • Refrigerant pressure sensor malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | VERIFY FREEZE FRAME DATA HAS BEEN RECORDED • Has FREEZE FRAME DATA been recorded? | Yes | Go to the next step.
No | Record FREEZE FRAME DATA on the repair order, then go to the next step.
2 | VERIFY RELATED SERVICE INFORMATION AVAILABILITY • Verify related Service Information availability. • Is any related Service Information available? | Yes | Perform repair or diagnosis according to the available Service Information. • If the vehicle is not repaired, go to the next step.
No | Go to the next step.
3 | INSPECT REFRIGERANT PRESSURE SENSOR CONNECTOR FOR POOR CONNECTION • Turn the ignition switch off. • Disconnect the refrigerant pressure sensor connector. • Inspect for poor connection (such as damaged/ pulled-out pins, corrosion). • Are there any malfunction? | Yes | Repair or replace suspected part, then go to Step 9.
No | Go to the next step.
4 | INSPECT REFRIGERANT PRESSURE SENSOR SIGNAL CIRCUIT FOR SHORT TO GROUND • Refrigerant pressure sensor connector is disconnected. • Turn the ignition switch off. • Inspect for continuity between refrigerant pressure sensor terminal B (wiring harness-side) and body ground. • Is there continuity? | Yes | Repair or replace suspected part, then go to Step 9.
No | Go to the next step.
5 | INSPECT PCM CONNECTOR FOR POOR CONNECTION • Turn the ignition switch off. • Disconnect the PCM connector. • Inspect for poor connection (such as damaged/ pulled-out pins, corrosion). • Are there any malfunction? | Yes | Repair or replace suspected part, then go to Step 9.
No | Go to the next step.
6 | INSPECT REFRIGERANT PRESSURE SENSOR CIRCUIT FOR OPEN CIRCUIT • Refrigerant pressure sensor and PCM connectors are disconnected. • Inspect for continuity between refrigerant pressure sensor terminal B (wiring harness-side) and PCM terminal 1M (wiring harness-side). • Is there continuity? | Yes | Go to the next step.
No | Repair or replace suspected part, then go to Step 9.
7 | INSPECT REFRIGERANT PRESSURE SENSOR POWER CIRCUIT FOR OPEN CIRCUIT • Refrigerant pressure sensor and PCM connectors are disconnected. • Turn the ignition switch off. • Verify the continuity between refrigerant pressure sensor terminal C (wiring harness-side) and PCM terminal 1BJ (wiring harness-side). • Is there continuity? | Yes | Go to the next step.
No | Repair or replace suspected part, then go to Step 9.
8 | INSPECT REFRIGERANT PRESSURE SENSOR • Inspect the refrigerant pressure sensor. (See REFRIGERANT PRESSURE SENSOR INSPECTION.) • Is there any malfunction? | Yes | Replace the refrigerant pressure sensor, then go to the next step.
No | Go to the next step.
9 | VERIFY TROUBLESHOOTING OF DTC P0532:00 HAS BEEN COMPLETED • Make sure to reconnect all disconnected connectors. • Clear the DTC from the PCM memory using the M-MDS. • Start the engine and warm it up completely. • Turn the A/C switch and the fan switch on. • Retrieve DTCs using the M-MDS. • Is the PENDING CODE for this DTC present? | Yes | Repeat the inspection from Step 1. • If the malfunction recurs, replace the PCM. (See PCM REMOVAL/INSTALLATION [MZI-3.7].) Go to the next step.
No | Go to the next step.
10 | VERIFY AFTER REPAIR PROCEDURE • Perform the “AFTER REPAIR PROCEDURE”. (See AFTER REPAIR PROCEDURE [MZI-3.7].) • Are any DTCs present? | Yes | Go to the applicable DTC inspection. (See DTC TABLE [MZI-3.7].)
No | Troubleshooting completed.