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Home >> Suzuki >> 2006 >> Verona Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTC P0030 Through P0175 >> DTC P0036: HO2S Heater Control Circuit Bank 1 Sensor 2 >> DTC Troubleshooting

DTC Troubleshooting

DTC TROUBLESHOOTING CHART

Step Action Value (s) Yes No
1 Perform an ON-BOARD DIAGNOSTIC (OBD II) SYSTEM CHECK .
Is the system check complete?		 - Go to Step 2. Go to ON-BOARD DIAGNOSTIC (OBD II) SYSTEM CHECK .
2
  1. Start the engine.
  2. Allow the engine to idle at operating temperature.
  3. Observe the HO2S heater current parameter with a scan tool.

Is the amperage within the specified values?		 0.25 - 0.85 A Go to Step 3. Go to Step 4.
3
  1. Observe the Freeze Frame / Failure Records for this DTC.
  2. Turn the ignition OFF for 30 seconds.
  3. Start the engine.
  4. Operate the vehicle within the conditions for setting the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame / Failure Records.

Did the DTC fail this ignition?		 - Go to Step 4. Go to Intermittents .
4
  1. Turn the ignition OFF.
  2. Disconnect the HO2S connector.
  3. Start the engine.
  4. Allow the engine to idle at operating temperature.
  5. Observe the DTC Info parameter with a scan tool for at least 30 seconds.

Did the DTC fail this ignition?		 - Go to Step 5. Go to Step 6.
5 Test the HO2S heater low control circuit for a short to voltage.
Did you find and correct the condition?		 - Go to Step 10. Go to Step 7.
6 Test for an intermittent and for a poor connection at the harness connector of the HO2S.
Did you find and correct the condition?		 - Go to Step 10. Go to Step 8.
7 Test for an intermittent and for a poor connection at the harness connector of the ECM.
Did you find and correct the condition?		 - Go to Step 10. Go to Step 9.
8 Replace the HO2S.
Did you complete the replacement?		 - Go to Step 10. -
9 Replace the ECM.
Did you complete the replacement?		 - Go to Step 10. -
10
  1. Clear the DTCs with a scan tool.
  2. Turn the ignition OFF for 30 seconds.
  3. Start the engine.
  4. Operate the vehicle within the conditions for setting the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame / Failure Records.

Does the DTC run and pass?		 - Go to Step 11. Go to Step 2.
11 Check if any additional DTCs are set.
Are any DTCs displayed that have not been diagnosed?		 - Go to applicable DTC Table . System OK
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