DTC Troubleshooting: P0532
DTC P0532 : A/C Pressure Sensor Circuit Low Voltage
DTC Description
Confirmed DTC
Pending DTC
P0532 A/C Pressure Sensor Circuit Low Voltage
DTC (PGM-FI)
1.
Problem verification:
Problem verification
?1.
Start the engine, and let it idle.
?2.
Turn the blower switch on.
?3.
Turn the A/C switch on.
?4.
Check the parameter(s) below with the HDS.
Signal
Threshold
Current conditions
Values
Unit
Values
Unit
A/C PRESSURE SENSOR
Less than 0.24
V
Do the current condition(s) match the threshold?
2.
Determine possible failure area (PD SENSOR line, others):
Determine possible failure area (PD SENSOR line, others)
?1.
Turn the vehicle to the OFF (LOCK) mode.
?2.
Disconnect the following connector.
A/C pressure sensor 3P connector
?3.
Turn the vehicle to the ON mode.
?4.
Check the parameter(s) below with the HDS.
Signal
Threshold
Current conditions
Values
Unit
Values
Unit
A/C PRESSURE SENSOR
Less than 0.24
V
Do the current condition(s) match the threshold?
3.
Determine possible failure area (A/C pressure sensor, others):
Determine possible failure area (A/C pressure sensor, others)
?1.
Measure the voltage between test points 1 and 2.
Test condition
Vehicle ON mode
A/C pressure sensor 3P connector: disconnected
Test point 1
A/C pressure sensor 3P connector (female terminals) No. 1:
Test point 2
A/C pressure sensor 3P connector (female terminals) No. 3:
Is there about 5.0 V?
4.
Open wire check (VCC6 line):
Open wire check (VCC6 line)
?1.
Turn the vehicle to the OFF (LOCK) mode.
?2.
Jump the SCS line with the HDS, and wait more than 1 minute.
SCS Short
?3.
Disconnect the following connector.
?4.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
A/C pressure sensor 3P connector: disconnected
PCM connector E (80P): disconnected
Test point 1
A/C pressure sensor 3P connector (female terminals) No. 3:
Test point 2
Is there continuity?
The VCC6 wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or
substitute a known-good PCM .?
Repair an open in the VCC6 wire between the PCM (E63) and the A/C pressure sensor.?
5.
Shorted wire check (PD SENSOR line):
Shorted wire check (PD SENSOR line)
?1.
Turn the vehicle to the OFF (LOCK) mode.
?2.
Jump the SCS line with the HDS, and wait more than 1 minute.
SCS Short
?3.
Disconnect the following connector.
?4.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
A/C pressure sensor 3P connector: disconnected
PCM connector A (50P): disconnected
Test point 1
A/C pressure sensor 3P connector (female terminals) No. 2:
Test point 2
Body ground
Is there continuity?
Repair a short in the PD SENSOR wire between the PCM (A33) and the A/C pressure sensor.?
The PD SENSOR wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or
substitute a known-good PCM .?