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Conditions for Checking
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Nominal Value
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Affected Terminals: 46, 52, 9
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-
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Possible Trouble Codes: 56, 57
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Engine running at idle speed
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Engine throttle valve CLOSED
(accelerator pedal in idle position)
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Vehicle stationary
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Press key F8 in the system
main menu, select the desired test using the arrow keys and confirm with YES.
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Follow the instructions in the
TECH 1 display.
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Note:
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In this mode, it is possible to
set the idle speed adjuster to a fixed position using the arrow keys.
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In addition, the YES and NO keys
can be used to display the various data list parameters. The F9 key is
used to store data as in the snapshot mode.
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In this check mode,
TECH 1 specifies the position of the idle speed adjuster. Idle
speed control is no longer active.
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This mode should be used if it
appears necessary to evaluate the various engine parameters (e. g.
O2 INTEGRATOR or INJECTION PULSE) at a fixed idle speed position
(constant air quantity), or to determine whether the idle speed adjuster
travels over the entire movement range evenly and without sticking.
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