When a malfunction is not confirmed by the dtc check, troubleshooting should be carried out in all circuits considered to be possible causes of the problem. In many cases, by carrying out the basic engine check shown in the following flowchart, the location of the problem can be found quickly and efficiently. Therefore, using this check is essential when engine troubleshooting.
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Notice:
Conduct this check with the engine stopped and ignition
switch off. 


Check for intermittent problems
RegistrationSystem voltage
Description
The battery supplies electricity to the ecm even when the ignition switch is
in the off position. This
power allows the ecm to store data such as dtc history, freeze frame data and
fuel trim values. If the
battery voltage falls below a minimum level, the memory is cleared and ...
Disassembly
Remove park/neutral position switch assembly
Remove the nut, washer and control shaft lever.
Using a screwdriver, pry off the lock plate.
Remove the nut and lock plate.
Remove the 2 bolts and pull out the switch.
Remove breather plug hose
Remove oil coo ...
Data list / active test
Read data list
Hint:
Using the intelligent tester's data list allows switch,
sensor, actuator and other item values to be read without
removing any parts. Reading the data list early in
troubleshooting in one way to save time.
Connect the intelligent tester (with can vim) to the
dlc3 ...