1A
DTC P0530: A/C Refrigerant Pressure Sensor Circuit
NOTE:
• This DTC indicated only with SUZUKI scan tool.
• Fault finding procedure application conditions for stored fault:
The fault is declared present with the engine idling and air conditioning operating one vehicle equipped with air conditioning system.
• Priority when dealing with a number of DTCs:
If DTC P0530 and DTC P0641 are detected, deal with DTC P0641 Sensor Resistance Voltage Circuit/Open first.
Wiring Diagram
For wiring circuit and connector number, refer to “K9K Engine (Type 5)” in A-4 Engine Control System Circuit Diagram .
Detecting Condition
Status displayed on SUZUKI scan tool Detecting condition Indicator / Warning light operation
CO1 Open circuit or short circuit to 12 V Does not light
CC0 Short circuit to ground
Troubleshooting
Check the connection and condition of the A/C pressure sensor.
Repair if necessary.
Check the connection and condition of the ECM “C48” connector.
Repair if necessary.
Check for insulation, continuity and absence of interference resistance of the connections:
• Between “E100-1” terminal of A/C pressure sensor connector and “C48-3” terminal of ECM connector
• Between “E100-3” terminal of A/C pressure sensor connector and “C48-9” terminal of ECM connector
• Between “E100-2” terminal of A/C pressure sensor connector and “C48-27” terminal of ECM connector
Repair if necessary. If DTC P0530 is still detected, replace the A/C pressure sensor.
If DTC P0530 is still detected, replace the ECM.
After Repair
Deal with any faults detected by SUZUKI scan tool.
Clear the DTC.
Carry out a road test followed by another check with the SUZUKI scan tool.