Inspection procedure
If the CONSULT cannot diagnose the system properly, check the following items.
| Symptom | Check item |
| CONSULT cannot access any system. |
|
| CONSULT cannot access individual system. (Other systems can be accessed.) |
|
NOTE:
The DDL2 circuits and CAN communication lines from DLC pins 6, 7 and 14 may be connected to more than one system. A short in a DDL circuit or CAN lines connected to a control unit in one system may affect CONSULT access to other systems. For a complete DDL circuit layout, refer to GI-49, "Wiring Diagram". For a complete CAN line layout, refer to LAN-33, "Wiring Diagram".
Function and System Application
Wiring diagramIf your vehicle overheats
If your vehicle is overheating (indicated by an
extremely high temperature gauge reading), or if
you feel a lack of engine power, detect abnormal
noise, etc., take the following steps.
WARNING
Do not continue to drive if your vehicle
overheats. Doing so could cause engine
dama ...
Exhaust gas (carbon monoxide)
WARNINGDo not breathe exhaust gases; they
contain colorless and odorless carbon
monoxide. Carbon monoxide is dangerous.
It can cause unconsciousness or
death.
If you suspect that exhaust fumes are
entering the vehicle, drive with all windows
fully open, and have ...
P0137 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. To judge the malfunctions of heated oxygen
...