Scan Tool Operating Instructions - AK Automotive Training

Manufacturer Applications
18 1. Engine speed (read-out in steps of 40 rpm).
2. Engine load (injection time per revolution - engine load without
altitude correction).
3. Engine load (Ignition time per revolution - engine load with altitude
correction).
4. Altitude correction factor (see note below).
NOTE: For engine code AEB only, this field will always indicate 0 as the system
altitude correction is taken directly from the altitude sender, however, meteorological
conditions may alter results significantly.
19 1. Engine speed (read-out in steps of 40 rpm).
2. Engine load (injection time per revolution).
3. Ignition angle retardation (retardation signal may not always be
recognised because it is so brief).
4. Ignition angle.
20 1. Engine speed. Read-out in steps of 10 rpm (max 2550 rpm).
2. Selector level position (Automatic gearbox equipped vehicles, with
Neutral or Drive selected. Manual gearbox equipped vehicles
always display Drive position ON).
3. Air conditioner type. - High or low heating/cooling capacity - on
models without aircon, A/C High is always displayed when the
heated rear screen is on.
4. Air conditioner compressor status (compressor OFF is always
displayed on vehicles fitted with aircon).
21 1. Engine speed (read-out in steps of 40 rpm).
2. Engine load (injection time per revolution).
3. Coolant temperature (see note below).
4. Lambda control status (when Lambda control is switched OFF, the
engine runs under map control).
NOTE: At a starting temperature below 5°C, the Lambda control is not activated until
coolant temperature reaches 5°C; above 5°C Lambda control is not activated until
signal voltage is recognised.
22 1. This display group is not relevant.
23 1. Throttle operating conditions - when the first figure in the display is
1, this indicates engine speed in steps of 40 rpm. Refer to Table 20
for the relevance of the figures in line 1.
2. Throttle valve positioner min. stop.
3. Emergency throttle valve positioner stop.
4. Throttle valve positioner max. stop.
24 1. Engine speed (read-out in steps of 40 rpm).
2. Engine load (injection time per revolution).
3. Ignition angle.
4. Ignition angle retardation (see note below).
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