|
1.Turn the ignition switch
to the "LOCK" (OFF) position, and then connect the
M.U.T.-III to the diagnosis connector. 2.Make sure
the diagnosis codes are not stored using M.U.T.-III. If
stored, record the code No. Carry out the troubleshooting
for the stored codes and solve the problems even if not
related to the ignition. 3.Disconnect the injector
connectors on all of the cylinders. 4.Disconnect
the ignition coil connector. 5.Remove the ignition
coil and install a good spark plug to the ignition
coil. 6.Connect the ignition coil
connector. 7.Earth the side electrode of the spark
plug and crank the engine. 8.Check that spark is
produced between the electrodes of the spark
plug. 9.If the spark plug has weak sparks or no
sparks, carry out the same check using a good ignition coil.
If there are strong sparks on this check with a good
ignition coil, it becomes clear there is a problem with the
ignition coil. Replace the ignition coil with a new one. If
there are no sparks on this check with a good ignition coil,
there is probably a problem with the ignition circuit. Check
the ignition circuit. 10.Using M.U.T.-III, make
sure whether the diagnosis codes are stored due to the
check, or not. Except the codes stored in Step 1, clear the
codes all together if they are present. And then, carry out
the troubleshooting about the codes
recorded. 11.Turn the ignition switch to the
"LOCK" (OFF) position, and then disconnect the
M.U.T.-III.
|