P0038

P0037, P0038 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 1-2:

Step 2 (Continued):

Diagnostic Procedure

Step 1-5:

Step 5 (Continued)-7:

Component Inspection