Actron Code Scanner CP9025, User Manual

Page: 6 / 88

6
running poorly, problems in the computer
system MAY be the cause.
See if any of the following symptoms
apply to your vehicle.
• Is the gas mileage significantly lower
than it should be?
• Is it hard to start cold?, hot?, always?
• Has it recently failed an emissions
test?
• Does it falter or stumble when
accelerated?
• Does it lunge or surge while trying to
maintain a steady speed?
• Has it lost power?
Always check the simple things first:
• Is the air filter clean? A dirty air filter
will degrade engine performance.
• Are all vacuum hoses correctly
installed and in good condition?
• Have the spark plugs, spark plug
wires, distributor cap, and rotor (if
used) been changed according to the
manufacturer’s recommendations?
• Is the tire pressure correct? Low tire
pressure can affect power and gas
mileage.
Make any necessary repairs before
proceeding to read trouble codes.
Code Scanner Tools
The tools illustrated below are part of the
Code Scanner package. The “Code
Reading” sections of this manual list
procedures and tell you what tools are
required.
TOYOTA section starts on page 9
HONDA section starts on page 28
NISSAN section starts on page 43
TM
TOYOTA
CP9025