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 |
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.
Repair If necessary.
• Between “C46-3” terminal of EGR valve connector and “C47-8” terminal of ECM connector. |
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. |