Specifications

Data Parameters Engine Parameters

Scanner as a Functional Test. A lower threshold enables the ECU to detect less severe misfires

indicated by reading the RPM decrease and misfire fault counter for each cylinder.

The crankshaft sensor gear adaptation mean value reflects the addition of a supplementary

correction factor designed to compensate for phase error in the crankshaft sensor. This

information is used to compute actual ignition timing. Each segment represents the duration

between each new ignition cycle. Ignition, injection and engine speed derived from segment

duration are recalculated for each segment.

SENSOR GEAR ADAPTATION ENDED

Range: __________________________________________________________ YES/NO

Used on ME and SIM4 systems. This parameter indicates whether the sensor gear adaptation

memory has been cleared. The display reads YES if the adaptation has ended and NO if

adaptation memory has run and is active. Sensor gear adaptation memory is cleared when the

Scanner performs an ECU reset functional test command.

SHIFT POINT SHIFT

Range: ______________________________________________________ not available

Used on HFM systems. This parameter indicates the transmission shift point variability. No other

information is available at this time.

SNSR GEAR ADAPT. MEAN VAL. SEG.A to E; N1 to N4

SNSR GEAR ADAPT. MEAN VALUES SEG.A to E

Range: ____________________________________________________ range: variable

Used on ME10 systems. This parameter indicates the correction the ECU is making to filter out

vibrations and prevent setting false misfire codes.

The crankshaft sensor gear adaptation mean value reflects the addition of a supplementary

correction factor designed to compensate for phase error in the crankshaft sensor. This

information is used to compute actual ignition timing. Each segment represents the duration

between each new ignition cycle. Ignition, injection, and engine speed derived from segment

duration are recalculated for each segment.

SMOOTH RUNNING OF CYL. 1 to 8

Range: __________________________________________________________ variable

Used on ME27 and ME28 systems. The “1 to 8" represents eight separate parameters, one for

each cylinder. These parameters indicate cylinder detonation, or knock, as provided to the ECU

by the various knock sensors. The ECU calculates a new value once per second. The

measurement is the actual knock sensor frequency output. High numbers on individual

cylinder(s), may indicate a specific problem limited to that cylinder(s). High numbers on all

cylinders may indicate a general engine detonation or pinging problem.

SP.DEV.BT. FR/RR AXLES TOO HIGH

Range: __________________________________________________________ YES/NO

Used on HFM systems. This parameter shows whether the ECU is receiving input signals

indicating too much deviation between the speed of the front and rear axles. The display reads

YES if speed deviation is too high, and reads NO at all other times. Traction control activates

when YES displays.

SPEED SIGNAL

Range: __________________________________________________________ variable

Used on DM systems. This parameter is the vehicle speed sensor (VSS) input signal to the ECU.