1A
DTC P0400 / P2413: Exhaust Gas Recirculation Flow / Exhaust Gas Recirculation System Performance
NOTE:
• DTC P2413 indicated only with generic scan tool.
• If DTC P0400 is detected, unstable idle speed and even stalling.
Starting difficult or even impossible when cold smoke emissions and loss of performance possible.
• Conditions for applying fault finding procedures to stored DTC:
• The DTC is detected with the engine running.
Wiring Diagram
For wiring circuit and connector number, refer to “K9K Engine (Type 5)” in A-4 Engine Control System Circuit Diagram .
Detecting Condition
NOTE:
Generic scan tool displays status D5 of DTC P0400 as DTC P2413.
Status displayed on SUZUKI scan tool Detecting condition Indicator / Warning light operation
D1 Parameter at limit minimum Does not light
D2 Parameter at limit maximum
D3 Incoherence
D4 Above maximum threshold
D5 Component stuck MIL and injection warning light (gravity 1 fault) light up
Troubleshooting
Check the connection and condition of the EGR valve connector.
Repair if necessary.
Check the condition of the ECM “C47” connector.
Repair if necessary.
Check for 5 V on “C46-5” terminal of the EGR valve connector.
Check EGR valve for operation referring to EGR Valve (Stepper Motor) Inspection:K9K .
Replace the EGR valve if necessary.
Check the continuity and insulation of the following connections:
• Between “C46-1” terminal of EGR valve connector and “C47-5” terminal of ECM connector.
• Between “C46-3” terminal of EGR valve connector and “C47-8” terminal of ECM connector.
Repair If necessary.
In addition, if D4 or D5 is indicated:
Remove the EGR valve. Check that there are no foreign bodies (scale, etc.) that could jam the valve.
Remove any foreign bodies and clean the EGR valve. Refit the EGR valve.
Clear the DTC. Carry out a road test and recheck DTC.
If DTC P0400 is still detected, replace the EGR valve.
If DTC P0400 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.