Engine General Information and Diagnosis: 1A-156
DTC P0533: A/C Refrigerant Pressure Sensor Circuit High
S5JB0A1104052
Wiring Diagram
Refer to “DTC P0532: A/C Refrigerant Pressure Sensor Circuit Low: ”.
DTC Detecting Condition and Trouble Area
NOTE
When DTC P0108, P0113 and P0118 are indicated together, it is possible that “GRY/GRN” wire circuit
open.
DTC Confirmation Procedure
1) Connect scan tool to DLC with ignition switch turned OFF.
2) Turn ON ignition switch and clear DTC using scan tool.
3) Check DTC and pending DTC.
DTC Troubleshooting
NOTE
Before this trouble shooting is performed, read the precautions for DTC troubleshooting referring to
“Precautions For DTC Troubleshooting: ”.
DTC detecting condition Trouble area
A/C refrigerant pressure sensor signal voltage is higher
than 4.93 V for 0.5 sec. continuously.
(1 driving detection logic but MIL does not light up)
• A/C refrigerant pressure sensor circuit
• A/C refrigerant pressure sensor
•ECM
Step Action Yes No
1 Was “Engine and Emission Control System Check”
performed?
Go to Step 2. Go to “Engine and
Emission Control
System Check: ”
2 A/C refrigerant pressure sensor power supply circuit
check
1) Disconnect connector from A/C refrigerant pressure
sensor with ignition switch turned OFF.
2) Check for proper connection of A/C refrigerant pressure
sensor at “GRY/RED”, “GRY/BLK” and “GRY/GRN” wire
terminals.
3) Turn ON ignition switch, measure voltage between
engine ground and “GRY/RED” wire terminal of A/C
refrigerant pressure sensor connector.
Is voltage 4 – 6 V?
Go to Step 4. Go to Step 3.
3 A/C refrigerant pressure sensor signal circuit check
1) Turn ON ignition switch, measure voltage between
engine ground and “GRY/BLK” wire terminal of A/C
refrigerant pressure sensor connector.
Is voltage 4 – 6 V?
Go to Step 5. Go to Step 4.
4 A/C refrigerant pressure sensor signal circuit check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Measure resistance between “GRY/BLK” wire terminal of
A/C refrigerant pressure sensor connector and “C37-12”
terminal of ECM connector.
Is resistance below 2
Ω
?
“GRY/BLK” wire is
shorted to power supply
circuit.
“GRY/BLK” wire is open
or high resistance
circuit.
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