811 Precautions when working with computer controlled systems

• Do not perform electric welding on the vehicle without first disconnecting the computer.

• Do not subject the computer to high temperature by placing it in a high bake paint oven.

• Always earth yourself to release the static electricity charge that could damage sensitive components.

• Always use test instruments with a high impedance (internal resistance) to avoid loading electronic devices.

• Do not use chemical cleaning agents on the ECM.

• Avoid using steam cleaning and high pressure water jets in the vicinity of the ECM.

• Do not add units to the vehicle without first assuring yourself that they will not interfere with computer controlled systems.

Fig. 8.23 The principle of the half-split method

Fig. 8.23 The principle of the half-split method

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

Don't pay hundreds of dollars to find out what is wrong with your car. This book is dedicated to helping the do it yourself home and independent technician understand and use OBD-II technology to diagnose and repair their own vehicles.

Get My Free Ebook

Post a comment