Suzuki Grand Vitara XL-7 Service Manual page 168

DTC P0245 (P0243)/P0246 (P0243) TURBO PRESSURE SOLENOID VALVE CIRCUIT
WIRING DIAGRAM
Refer to DTC P0243 (P0243).
TROUBLESHOOTING
STEP
1 Was "ENGINE DIAG. FLOW TABLE" performed?
2 Check Vacuum Circuit
Check vacuum circuit for leak and clogging.
Is it in good condition?
3 Check boost pressure regulator solenoid valve for
resistance referring to "BOOST PRESSURE
REGULATOR SOLENOID VALVE" in Section 6E3.
Is resistance as specified?
NOTE:
If DTC is checked using generic scan tool only and DTC P0243 (P0243) Diag. Flow Table is not performed
yet, go to the table before ECM replacement.
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 frame data by using scan tool.
3) Run engine over 2500 rpm for 10 sec.
4) Check DTC and pending DTC by using scan tool.
ENGINE DIAGNOSIS (RHZ ENGINE WITH TRIPLE-CONNECTOR ECM) 6-1-29
RANGE/PERFORMANCE PROBLEM
ACTION YES
Go to Step 2.
Go to Step 3.
Substitute a known-
good ECM and
recheck. (See NOTE.)
NO
Go to "ENGINE DIAG.
FLOW TABLE".
Repair or replace.
Replace boost
pressure regulator
solenoid valve.