Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSKIA2010RONDO LX, 2.7 6REPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM DIAGNOSIS (1 OF 3) - 2.7LDTC P0134: HO2S CIRCUIT NO ACTIVITY DETECTED (BANK 1 SENSOR 1)INSPECTION/REPAIRCOMPONENT INSPECTION

2010 Kia Rondo LX, 2.7 6

Component Inspection

2010 Kia Rondo LX, 2.7 6SECTION Component Inspection

Check the Signal waveform of HO2S
1. IG "OFF" and connect HO2S connector.
2. Engine start.
3. After warming-up, monitor signal waveform of HO2S with scantool.
  
  Fig 1: Identifying Signal Waveform
  Courtesy of KIA MOTORS AMERICA, INC.
4. Is the sensor switching properly?
  YES
  1. Go to " 2 Check HO2S" as follows.
  NO
  1. Substitute with a known-good HO2S and check for proper operation.
    If the problem is corrected, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check HO2S
1. IG "OFF" and disconnect HO2S connector.
2. Check that the HO2S is securely installed.
3. Check the HO2S for contamination or damage
4. Is the sensor normal?
  YES
  1. Substitute with a known-good PCM and check for proper operation.
    If the problem is corrected, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  NO
  1. Substitute with a known-good HO2S and check for proper operation.
    If the problem is corrected, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
    
    CAUTION: There is a memory reset function on the scantool that can erase optional components automatically detected and memorized by the PCM. Before or after testing PCM on the vehicle, use this function to reuse the PCM.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.