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EC-106
[QR (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
*: The items are the same as those of 1st trip freeze frame data.
DATA MONITOR MODE
Monitored Item
×: Applicable
CAL/LD VALUE [%]
● The calculated load value at the moment a malfunction is detected is displayed.
COOLANT TEMP [°C]
or [°F]
● The engine coolant temperature at the moment a malfunction is detected is displayed.
L-FUEL TRM-B1 [%]
● “Long-term fuel trim” at the moment a malfunction is detected is displayed.
● The long-term fuel trim indicates much more gradual feedback compensation to the base fuel schedule
than short-term fuel trim.
S-FUEL TRM-B1 [%]
● “Short-term fuel trim” at the moment a malfunction is detected is displayed.
● The short-term fuel trim indicates dynamic or instantaneous feedback compensation to the base fuel
schedule.
ENGINE SPEED
[rpm]
● The engine speed at the moment a malfunction is detected is displayed.
VEHICL SPEED [km/
h] or [mph]
● The vehicle speed at the moment a malfunction is detected is displayed.
B/FUEL SCHDL
[msec]
● The base fuel schedule at the moment a malfunction is detected is displayed.
INT/A TEMP SE [°C]
or [°F]
● The intake air temperature at the moment a malfunction is detected is displayed.
Freeze frame data
item*
Description
Monitored item
[Unit]
ECM
INPUT
SIGNALS
MAIN
SIG-
NALS
Description Remarks
ENG SPEED [rpm] ××
● Indicates the engine speed computed from the
signals of the crankshaft position sensor
(POS) and camshaft position sensor (PHASE).
● Accuracy becomes poor if engine
speed drops below the idle rpm.
● If the signal is interrupted while the
engine is running, an abnormal
value may be indicated.
MAS A/F SE-B1 [V] ××
● The signal voltage of the mass air flow sensor
is displayed.
● When the engine is stopped, a
certain value is indicated.
B/FUEL SCHDL
[msec]
×
● “Base fuel schedule” indicates the fuel injec-
tion pulse width programmed into ECM, prior
to any learned on board correction.
A/F ALPHA-B1 [%] ×
● The mean value of the air-fuel ratio feedback
correction factor per cycle is indicated.
● When the engine is stopped, a
certain value is indicated.
● This data also includes the data
for the air-fuel ratio learning con-
trol.
COOLAN TEMP/S
[°C] or [°F]
××
● The engine coolant temperature (determined
by the signal voltage of the engine coolant
temperature sensor) is displayed.
● When the engine coolant tempera-
ture sensor is open or short-cir-
cuited, ECM enters fail-safe mode.
The engine coolant temperature
determined by the ECM is dis-
played.
HO2S1 (B1) [V] ××
● The signal voltage of the heated oxygen sen-
sor 1 is displayed.
HO2S2 (B1) [V] ×
● The signal voltage of the heated oxygen sen-
sor 2 is displayed.
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