Other information:
Removal
1.
Prior to replacing the 4WD ECU, check the 4WD ECU's clutch learning
with the GDS tool.
(Refer to 4WD Control System - "Repair procedures")
2.
Disconnect the battery negative cable from the battery ...
Inspection
[On vehicle inspection]
1.
Accelerate the engine to about 3,000 rpm 3 times or more.
2.
Remove the spark plug.
3.
Check the spark plug visually.
If the electrode is dry, th ...