Manufacturer Code Charts

The following are some guidelines in using the Test Procedure:

1. Start from test one of the category you are using. Starting from any other test will give incorrect results.
2. Do what each test tells you to do.
3. If the test tells you to start the engine, turn engine off when all items have been performed in that test.
4. If any test tells you to disconnect wires or hoses, make sure they are connected after all items have been performed in that test.

Some tests may have more than one step. The test is not complete until all the steps have been perform or the problem has been found.