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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Check and Resetting

1 Switch off Tech 2 and turn the ignition OFF.

2 Start the engine.

3 If the engine does not start, turn the ignition key to OFF, then remove and refit fuse 28 (engine control module).

4 Start the engine. Depress the accelerator and then check if any new diagnostic trouble codes have been generated. Rectify and erase any diagnostic trouble codes.

5 Turn the ignition OFF and wait 10 seconds. Check that the throttle is not in limp-home mode as follows:

a Remove the upper engine cover.

b Remove the cover from the throttle body.

c Turn the pedal arm clockwise.

d Check that the throttle arm does not make the reciprocal movement when the pedal arm is turned.

e To reset limp-home mode, if necessary, see WIS - Engine - Trionic T7 - Adjustments/replacement - Resetting triggered limp-home solenoid.

f Fit the cover over the throttle body and the upper engine cover.