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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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For Vehicles Equipped With Traction Control System

FOR VEHICLES EQUIPPED WITH TRACTION CONTROL (TRAC) SYSTEM

When testing with a 2-wheel drum tester such as a speedometer tester, a combination tester of the speedometer and brake, a chassis dynamometer, or when jacking up the front wheels and driving the wheels, always turn the TRAC system OFF before-hand via the TRAC OFF switch before testing.

NOTE: TRAC system OFF condition can be confirmed by the "TRAC OFF" warning indicator lamp in the combination meter.

a. Confirm that the TRAC system is OFF.




1. Press the TRAC cut ("TRAC OFF") switch to turn off the TRAC system.
2. Check if the TRAC OFF indicator lamp illuminates.

HINT: The SLIP indicator lamp should always operate immediately after the engine is restarted.

3. Begin testing.




4. Press the TRAC cut switch to turn on the TRAC system and check that the TRAC OFF indicator lamp turns off.

HINT: The SLIP indicator lamp blinks when the TRAC system is operating.