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Home >> Mazda >> 2012 >> 6 i Touring >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 23 (On-Board Diagnostic [Engine Controls MZI 3.7] (5 Of 5)) >> DTC P2097:00, P2099:00 >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different variant/trim than selected.
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN RECORDED 
  • Has FREEZE FRAME DATA been recorded?
Yes Go to the next step.
No Record FREEZE FRAME DATA on the repair order, then go to the next step.
2 VERIFY RELATED REPAIR INFORMATION AVAILABILITY 
  • Verify related Service Bulletins and/or on-line repair information availability.
  • Is any related Service Bulletins available?
Yes Perform repair or diagnosis according to the available Service Bulletins.
  • If the vehicle is not repaired, go to the next step.
No Go to the next step.
3 VISUALLY INSPECT A/F SENSOR AND HO2S CONNECTORS 
  • Switch the ignition switch off.
  • Disconnect A/F sensor and HO2S connector for suspect bank.
  • Visually inspect for a loose connection, and damaged or corroded terminals
  • Is a concern present?
Yes Repair or replace suspect part then go to Step 5.
No Go to the next step.
4 INSPECT FOR POTENTIAL SENSOR CONTAMINATION CONCERNS 
  • Investigate the following items as potential sources of A/F sensor contamination:
    • Use of unapproved silicon sealers
    • Fuel contaminated by silicon additives
    • Excessive oil consumption
    • Glycol leaking internally in the engine
    • Lead-contaminated fuel
    • Short drive cycles in cold weather
    • Use of unapproved cleaning agents
  • Is a concern present?
Yes Repair or replace the source of the contamination.
Replace the engine oil and oil filter.
Go to the next step.
No Go to the next step.
(The system is operating normally at this time. The concern may have been caused by a loose or corroded connector.).
5 VERIFY TROUBLESHOOTING OF DTC P2097:00, P2099:00 HAVE BEEN COMPLETED 
  • Verify that all disconnected connectors are reconnected.
  • Switch the ignition ON (Engine off).
  • Clear the DTC from the PCM memory using the M-MDS.
  • Perform the OBD-II DRIVE MODE up to Misfire, Fuel and HO2S Monitors (Step 11).

    (See OBD-II DRIVE MODE .)

  • Is the PENDING CODE for this DTC present?
Yes Repeat the inspection from Step 1.

Go to the next step.
No Go to the next step.
6 VERIFY AFTER REPAIR PROCEDURE 
Yes Go to the applicable DTC inspection.
(See DTC TABLE .)
No Troubleshooting completed.