DTC P1134 & DTC P1154 Kia Optima I рестайлинг

Code Definition

1. DTC P1134: Right Front Heated Oxygen Sensor Circuit Transition Switch Malfunction/Slip
2. DTC P1154: Left Front Heated Oxygen Sensor Circuit Transition Switch Malfunction/Slip

Note. Before performing any diagnostic test, refer toWARNINGS, CAUTIONS and NOTES in DIAGNOSTIC TESTS .

Note. Testing individual components does not isolate shorts or opens. Perform all voltage tests using a Digital Volt-Ohmmeter Meter (DVOM) with a minimum 10-megohm input impedance, unless stated otherwise in test procedure. Use ohmmeter to isolate wiring harness shorts or opens.

Diagnostic Aids

Malfunction code enable criteria not available from manufacturer.

Check for following possible problems

1. Contaminated or deteriorated Heated Oxygen Sensor (HO2S).
2. HO2S malfunction.