Dtc P0191 (P0230) Fuel Rail; Consistency Function; Dtc P1112 (P0230) Fuel Pressure Monitoring Circuit Malfunction - Suzuki Grand Vitara XL-7 Service Manual

6-42 ENGINE DIAGNOSIS (RHZ ENGINE WITH SINGLE-CONNECTOR ECM)
DTC P0191 (P0230) FUEL RAIL PRESSURE SENSOR/PRESSURE REGULATOR

DTC P1112 (P0230) FUEL PRESSURE MONITORING CIRCUIT MALFUNCTION

WIRING DIAGRAM
5
5
DTC CONFIRMATION PROCEDURE
1) Connect scan tool to DLC with ignition switch OFF.
2) Turn ON ignition switch and clear DTC, pending DTC and freeze flame data by using scan tool and run engine
at idle speed for 10 sec. or more.
3) Then run engine 1000 rpm or more for 10 sec.
4) Check DTC and pending DTC by using scan tool.

CONSISTENCY FUNCTION

1. Double relay
2. Fuel pressure regulator
3. Fuel pressure sensor
4. ECM
5. Double relay fuse (30 A)