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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Display Group 022

NOTES:
^ The wheel slip information to the Automatic Traction Control (ATC) is calculated in the ABS Control Module. If slip is recognized, a torque reduction value from the Engine Control Module (ECM) is requested by the ABS Control Module. This torque reduction is divided into 12 reducing stages.
^ With cold engine, engine coolant temperature less than 20°C (68°F), the reduction of the engine torque is achieved at small reducing stages (1-5) by an ignition angle retard, and at large reducing stages (6-12) by briefly shutting OFF individual fuel injectors.
^ With warm engine, engine coolant temperature greater than 40°C (104°F), the reduction of the engine torque is achieved only by briefly switching OFF individual fuel injectors.

VAG 1551 Display, Measuring Value Block Display Group 022:




Key to VAG 1551 Display, Measuring Value Block 22