DTC Troubleshooting

WARNING: This page is about a different car, the 2010 Suzuki Kizashi. However, it is still accessible from the selected car via links, so may be relevant.

DIAGNOSTIC PROCEDURES CHART

Step	Action	YES	NO
1	Was "Engine and Emission Control System Check" performed?	Go to Step 2.	Go to ENGINE AND EMISSION CONTROL SYSTEM CHECK .
2	DTC check Is there any DTC(s) other than P2195 and P2196?	Go to troubleshooting for applicable DTC.	Go to Step 3.
3	A/F sensor signal circuit check Confirm that ignition mode of keyless push start system is "OFF". Disconnect "C01", "E01" and A/F sensor connectors. Check for proper terminal connection to "C01", "E01" and A/F sensor connectors. Check the following points. Resistance of "A3" and "A4" circuits: less than 1 Ω Resistance between each of "A3" and "A4" circuits and ground: infinity Resistance between each of "A3" and "A4" circuit terminals and each terminal at A/F sensor connector: infinity Voltage of "A3" and "A4" circuits: 0 - 1 V (with ignition mode of keyless push start system in "ON") Are they in good condition?	Go to Step 4.	Repair or replace defective wire harness.
4	DTC recheck Replace A/F sensor, see A/F SENSOR AND HO2S REMOVAL AND INSTALLATION . Perform DTC confirmation procedure and check DTC. Is DTC P2195 and P2196 still detected?	Replace ECM and recheck DTC, see ECM REMOVAL AND INSTALLATION .	End.