Heated Steering Wheel System
Heated Steering Wheel SystemPrecautions for Work
Precautions for Work
When removing or disassembling each component, be
careful not to damage or deform it. If a component may be subject
to interference, be sure to protect it with a shop cloth.
When removing (disengaging) components with a
screw ...
Compression pressure
Inspection
Warm up the engine to full operating temperature.
Release fuel pressure. Refer to EC-143, "Work Procedure".
Remove ignition coil and spark plug from each cylinder. Refer to EM-46,
"Exploded View".
Connect engine tachometer (not required in use of CONSULT). ...
P0138 HO2S2
DTC Logic
DTC DETECTION LOGIC
The heated oxygen sensor 2 has a much longer switching time between rich and
lean than the air fuel ratio (A/
F) sensor 1. The oxygen storage capacity of the three way catalyst (manifold)
causes the longer switching
time.
MALFUNCTION A
To judge the malfunction ...