P0038

P0037, P0038, P0057, P0058 HO2S2 HEATER

Description

SYSTEM DESCRIPTION






The ECM performs ON/OFF control of the heated oxygen sensor 2 heater corresponding to the engine speed, amount of intake air and engine coolant temperature.

OPERATION






DTC Logic

DTC DETECTION LOGIC






DTC CONFIRMATION PROCEDURE

Step 1:

Step 2:

Diagnosis Procedure

Step 1-4:

Step 4 (Continued)-7:

Component Inspection

Step 1-2: