Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Maintenance Precautions


1. Check engine for correct state of tune.

2. Precautions when connecting Diagnostic Equipment.

a. Use the battery as the power source for the timing light, tachometer, etc.

Connection Of Tachometer:





b. Connect the tester probe of a tachometer to terminal IG- of the Data Link Connector (DLC) 1.

3. In the event of engine misfire, the following precautions should be taken

a. Check proper connection of battery terminals, etc.

Removing Spark Plug Cables:







b. Handle high-tension cords carefully.

c. After repair work, check that the Ignition Coil terminals and all other ignition system lines are reconnected securely.

d. When cleaning the engine compartment. be especially careful to protect the electrical system from water.

4. Precautions when handling Oxygen Sensor

Oxygen Sensor Location:






a. Do not allow the Oxygen Sensor to drop or hit against an object.

b. Do not allow the Oxygen Sensor to come in contact with water.