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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Test R

Test R1:




Test R2-R3:





PINPOINT TEST R: DTC C1998-MODULE CALIBRATION NOT COMPLETE

NOTE: The Advance Trac/IVD lamp will flash when a system calibration is required. Calibration is required after certain DTCs are cleared.

Normal Operation
The Advance Trac/IVD system needs to be recalibrated whenever a component specific to the system is disconnected or a new component is installed.

Possible Causes
^ Disconnected/reconnected Advance Trac/IVD component:
- module.
- yaw rate sensor/accelerometer.
- steering wheel rotation sensor.
^ Clearing of Advance Trac/IVD component related DTCs.