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STEP
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INSPECTION
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ACTION
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1
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VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has FREEZE FRAME DATA been recorded?
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Yes
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Go to the next step.
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No
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Record the FREEZE FRAME DATA on the repair order, then go to the next step.
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2
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VERIFY REPAIR INFORMATION AVAILABILITY
• Verify related service repair information availability.
• Is any related repair information available?
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Yes
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Perform repair or diagnosis according to the available repair information.
• If the vehicle is not repaired, go to the next step.
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No
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Go to the next step.
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3
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IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA
• Is DTC P0133 on the FREEZE FRAME DATA?
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Yes
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Go to the next step.
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No
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Go to the FREEZE FRAME DATA DTC inspection.
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4
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HO2S-11 RESPONSE TEST
• Connect the WDS or equivalent to DLC.
• Turn the ignition switch to ON.
• Select Generic OBD Function from the menu and trigger.
• Press continue.
• Select Diagnostic Monitoring Test Results from menu and press trigger.
• Scroll to Test ID: 01 and press trigger.
• Turn the ignition switch to OFF.
• Is the indicated value greater than minimum threshold?
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Yes
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Intermittent malfunction exist, go to Step 11.
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No
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Go to the next step.
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5
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CHECK FOR ABNORMAL AIR LEAKS
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Note
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• Fuel calculations can be affected by abnormal air leaks.
• Carefully inspect the following areas for potential air leaks:
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- Hoses connecting to MAF sensor assembly
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- Hoses connecting to throttle body
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- Intake manifold gaskets leaks
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- PCV disconnected
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- Vacuum lines disconnected
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- Improperly seated engine oil dipstick, tube, and oil fill cap
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- Exhaust leaks at flanges and gaskets
• Are there any air leaks present?
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Yes
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Repair or replace malfunctioning part, then go to Step 11.
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No
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Go to the next step.
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6
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CHECK HO2S-11 CIRCUIT WIRING
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Note
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• Refer to the PCM connector pin number in the beginning of this pinpoint test.
• Disconnect the HO2S-11 connector.
• Check the connector (both halves) for water for contamination.
• Place a jumper wire HO2S-11 signal (pin-3) to VPWR (pin-2) at the HO2S-11 harness connector.
• Connect the WDS or equivalent to the DLC.
• Turn the ignition switch to ON.
• Access the O2S11 PID.
• Does the O2S-11 PID indicate greater than 1.0 V?
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Yes
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Replace the HO2S-11 and oil filter.
Then go to Step 11.
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No
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Remove the jumper wire.
Go to the next step.
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7
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CHECK HO2S SIGNAL AND SIGNAL RETURN CIRCUITS FOR OPEN IN HARNESS
• Measure resistance for following HO2S-11 harnesses at the harness side connectors:
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- Between HO2S-11 terminal 3 and PCM terminal 91
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- Between HO2S-11 terminal 4 and PCM terminal 60
• Is the resistance less than 1.50 ohms?
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Yes
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Go to the next step.
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No
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Repair open circuit, then go to Step 11.
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8
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CHECK HO2S-11 CIRCUIT FOR SHORT TO VPWR IN HARNESS
• Measure resistance between the PCM terminal 60 and 71, 97 at the PCM harness side connector pin.
• Is the resistance greater than 10,000 ohms?
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Yes
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Go to the next step.
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No
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Go to Step 10.
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9
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CHECK FOR SOURCE OF POTENTIAL HO2S-11 CONTAMINATION
• Investigate the following items as potential sources of HO2S-11 contamination.
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- Use of unapproved silicon sealers.
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- Fuel contaminated by silicon additives.
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- Excessive oil burning. (i.e.: rings, valve seals and oil overfill)
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- Glycol (antifreeze) leaking internally in the engine.
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- Lead contaminated fuel
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- Short drive cycles in cold weather
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- Use of unapproved cleaning agents
• Where any of the above conditions or concerns found during inspection?
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Yes
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Repair for source of contamination.
Replace the HO2S-11 and oil filter.
Then go to Step 11.
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No
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Replace the PCM, then go to Step 11.
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10
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VERIFY WIRING IS IN PROPER PIN LOCATION
• Measure resistance for following harnesses at the harness side connectors:
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- Between HO2S-11 terminal 4 and PCM terminal 60.
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- Between HO2S-11 terminal 3 and PCM terminal 91.
• Is the resistance less than 5.0 ohms?
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Yes
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Replace the HO2S-11, then go to the next step.
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No
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Repair as necessary, then go to the next step.
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11
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VERIFY TROUBLESHOOTING OF DTC P0133 COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the PCM memory using the WDS or equivalent.
• Drive the vehicle at 64 km/h {40 MPH} for at least 5 min.
• Is the PENDING CODE same DTC present?
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Yes
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Replace the PCM, then go to the next step.
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No
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Go to the next step.
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12
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VERIFY AFTER REPAIR PROCEDURE
• Perform "AFTER REPAIR PROCEDURE".
• Is there any DTC present?
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Yes
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Go to applicable DTC inspection.
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No
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Troubleshooting completed.
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