Scan Tool Operating Instructions - AK Automotive Training

Manufacturer Applications
7 1. Lambda control (bank 1) - -6.0 to 6.0%.
2. Lambda programme range display (see Table 14 for the relevance of
the figures in line 2).
3. Lambda programme demand diagnosis (see Table 15 for the relevance
of the figures in line 3).
4. Lambda programme demand display (see Table 15 for the relevance of
the figures in line 4). Not relevant.
8 1. Lambda control (bank 2) - -6.0 to 6.0%.
2. Lambda programme range display (see Table 14 for the relevance of
the figures in line 2).
3. Lambda programme demand diagnosis (see Table 15 for the relevance
of the figures in line 3).
4. Lambda programme demand display (see Table 15 for the relevance of
the figures in line 4). Not relevant.
9 1. Lambda control (bank 1).
2. Lambda control (bank 2).
3. Charcoal filter valve duty cycle.
4. Throttle valve angle (at idling speed = 0, at full load = greater than 95%).
10 1. Assigned Lambda value (the difference between this reading and the
field 2 below must always be < 8%).
2. Assigned Lambda value (the difference between this reading and the
field 1 above must always be < 8%).
3. Lambda probe 1 voltage (bank 1) - Reading must fluctuate, occasionally
going beyond 0.3 to 0.6V range.
4. Lambda probe 1 voltage (bank 2) - Reading must fluctuate, occasionally
going beyond 0.3 to 0.6V range.
11 1. Ignition timing - without knock control and without digital idling speed
stabilisation. - (with idling switch open - engine speed raised).
2. Ignition timing - with knock control and with digital idling speed
stabilisation. - (average of all four cylinders).
3. Ignition timing intervention (for digital idling speed stabilisation).
4. Idling switch function (0 = open, 1 = closed).
12 1. Momentary engine speed.
2. Engine load.
3. Ignition timing map switch-over - selected by the knock control function
under a variety of conditions including poor fuel quality or abnormal
engine noises (loose ancillaries or other engine damage).
4. Ignition timing retardation of knock control - active from a engine load of
greater than 40% - average of all cylinders.
13 1. Ignition timing map switch-over - selected by the knock control function
under a variety of conditions including poor fuel quality or abnormal
engine noises (loose ancillaries or other engine damage).
2. Ignition timing retard of knock control (cylinder 1).
3. Ignition timing retard of knock control (cylinder 2).
4. Ignition timing retard of knock control (cylinder 3).
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