1A
DTC P0045: Turbo Charger Boost Control Solenoid Circuit / Open
NOTE:
If DTC P0045 is detected, air flow regulation switched off, EGR valve closed and turbo charger regulation switched off.
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
CO 0 Open circuit or short circuit to ground Injection warning light (gravity 1 fault) lights up
CC 1 Short circuit to 12 V
Troubleshooting
Check the connection and condition of the boost pressure control solenoid valve connector.
Repair if necessary.
Check the connection and condition of the ECM “C47” connector.
Repair if necessary.
Check for the 12 V after ignition feed on “C97-2” terminal of the boost pressure control solenoid valve connector.
Check boost pressure control solenoid valve for resistance referring to Boost Pressure Control Solenoid Valve Inspection:K9K .
Replace the boost pressure control solenoid valve if necessary.
Check for insulation, continuity and absence of interference resistance of the connections:
• Between “C97-1” terminal of boost pressure control solenoid valve connector and “C47-3” terminal of ECM connector.
Repair if necessary.
If DTC P0045 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.