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DTC Troubleshooting

WARNING: This page is about a different car, the 2011 Suzuki SX4. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC INFORMATION AND PROCEDURES REFERENCE 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 P0133? 		 Go to troubleshooting for applicable DTC. Go to Step 3.
3  A/F sensor signal circuit check 
  1. Check A/F sensor signal circuit according to Step 3 under DTC P0131/P0132/P0134/P2237 .

Are they in good condition? 		 Go to Step 3. Repair or replace defective wire harness.
4  DTC recheck 
  1. Replace A/F sensor. AIR FUEL RATIO (A/F) SENSOR REMOVAL AND INSTALLATION
  2. Perform DTC confirmation procedure and check DTC.

Is DTC P0133 still detected? 		 Substitute a known-good ECM and recheck DTC. End.
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