Suzuki 2000 Grand Vitara SQ416, Руководство по обслуживанию

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YH4
GRAND
VITARA
6-1-10 ENGINE (H25 ENGINE)
1. TROUBLE CODE P0102 (1st)
2. COOLANT TEMP. 80
_
C
3. ENGINE SPEED 750 RPM
4. SHORT FT B1 – 0.8 %
5. SHORT FT B2 – 0.1 %
6. LONG FT B1 – 1.3 %
7. LONG FT B2 – 1.5 %
8. CALC LOAD 20.5 %
9. FUEL SYSTEM B1 CLOSED
10. FUEL SYSTEM B2 CLOSED
11. MAP 30.6 kPa
12. VEHICLE SPEED 0 km / h
An Example of Freeze Frame Data
1st, 2nd or 3rd in parentheses here repre-
sents which position in the order the malfunc-
tion is detected.
Warm-Up Cycle
A warm-up cycle means sufficient vehicle operation such that the
coolant temperature has risen by at least 22
_
C (40
_
F) from engine
starting and reaches a minimum temperature of 70
_
C (160
_
F).
Driving Cycle
A “Driving Cycle” consists of engine startup and engine shutoff.
2 Driving Cycles Detection Logic
The malfunction detected in the first driving cycle is stored in ECM
(PCM) memory (in the form of pending DTC and freeze frame data)
but the malfunction indicator lamp does not light at this time. It lights
up at the second detection of same malfunction also in the next driv-
ing cycle.
Pending DTC
Pending DTC means a DTC detected and stored temporarily at 1
driving cycle of the DTC which is detected in the 2 driving cycles
detection logic.
Freeze Frame Data
ECM (PCM) stores the engine and driving conditions (in the form
of data as shown at the left) at the moment of the detection of a mal-
function in its memory. This data is called “Freeze frame data”.
Therefore, it is possible to know engine and driving conditions (e.g.,
whether the engine was warm or not, where the vehicle was running
or stopped, where air/fuel mixture was lean or rich) when a malfunc-
tion was detected by checking the freeze frame data. Also, ECM
(PCM) has a function to store each freeze frame data for three dif-
ferent malfunctions in the order as the malfunction is detected. Uti-
lizing this function, it is possible to know the order of malfunctions
that have been detected. Its use is helpful when rechecking or diag-
nosing a trouble.
Priority of freeze frame data:
ECM (PCM) has 4 frames where the freeze frame data can be
stored. The first frame stores the freeze frame data of the malfunc-
tion which was detected first. However, the freeze frame data
stored in this frame is updated according to the priority described
below. (If malfunction as described in the upper square “1” below
is detected while the freeze frame data in the lower square “2” has
been stored, the freeze frame data “2” will be updated by the freeze
frame data “1”.)
PRIORITY FREEZE FRAME DATA IN FRAME 1
1
Freeze frame data at initial detection of malfunction
among misfire detected (P0300-P0306), fuel sys-
tem too lean (P0171, P0174) and fuel system too
rich (P0172, P0175).
2
Freeze frame data when a malfunction other than
those in “1” above is detected.