DTC Description

The PCM monitors front HO2S tip temperature and signal at the same time to check open circuit of Pumping Current Trim Circuit (PCM PIN No. 41). The PCM sets DTC P2626 if front O2 tip temperature is lower than the predetermined threshold and if front HO2S signal after oscillator off is lower than the predetermined threshold. If the same error code is set in the next driving cycle, the PCM illuminates the MIL.