Dtc P0530: A/C Refrigerant Pressure Sensor Circuit - Suzuki Grand Vitara 2011 Manual

DTC P0530: A/C Refrigerant Pressure Sensor Circuit

NOTE
• For vehicle not equipped with A/C system, it is not abnormal even if the DTC is detected.
• Conditions for applying fault finding procedures to stored faults:
The fault is declared present following a road test, or if the air conditioning is switched ON.
• If the fault is present, air conditioning is not authorized.
• Use service wire for all operations on the ECM connectors.
Wiring Diagram
For wiring circuit and connector number, refer to "A-5 Engine and A/C Control System Circuit Diagram (DSL) in
Section 9A".
Detecting Condition
Displaying on SUZUKI scan tool
CC1
CO0
Troubleshooting for CC1: Short circuit to +12 V
Check the A/C refrigerant pressure sensor connectors.
Check the ECM connections.
Repair if necessary.
Connect an air conditioning filling station (equipped with a high pressure gauge) to the vehicle.
Display parameter "REFRIGERANT PRESSURE" on HVAC control module with SUZUKI scan tool and compare
the value displayed by the filling station.
If the values match, carry out a fault finding procedure as described in the fault finding note for that vehicle.
If the values do not match, check the continuity and insulation against +12 V of the following connections:
• Between "E04- 3" wire of A/C refrigerant pressure sensor connector and "C86-13" terminal of ECM connector
• Between "E04-1" wire of A/C refrigerant pressure sensor connector and "C86-33" terminal of ECM connector
• Between "E04-2" wire of A/C refrigerant pressure sensor connector and "C85-9" terminal of ECM connector
Repair if necessary.
If the fault is still present, replace the A/C refrigerant pressure sensor
Troubleshooting for CO0: Open circuit or short circuit to vehicle body ground
Check the A/C refrigerant pressure sensor connector.
Check the ECM connections.
Repair if necessary.
Connect an air conditioning filling station (equipped with a high pressure gauge) to the vehicle.
Display parameter "REFRIGERANT PRESSURE" on HVAC control module with SUZUKI scan tool and compare
the value displayed by the filling station.
If the values match, carry out a fault finding procedure as described in the fault finding note for that vehicle.
If the values do not match, check the continuity and insulation against vehicle body ground of the following
connections:
• Between "E04-3" wire of A/C refrigerant pressure sensor connector and "C86-13" terminal of ECM connector
• Between "E04-1" wire of A/C refrigerant pressure sensor connector and "C86-33" terminal of ECM connector
Repair if necessary.
If the fault is still present, replace the A/C refrigerant pressure sensor.
Engine General Information and Diagnosis: For Diesel Engine Model 1A-324
Short circuit to +12 V
Open circuit or short circuit to vehicle body ground
Detecting condition
S6JB0A1124117