Suzuki Baleno Manual page 1355

An Example of Freeze Frame Data
1. Trouble Code P0102 (1st)
2. Engine Speed 782 RPM
3. Eng Cool Tmp. 80_C
4. Vehicle Spd. 0 km/h
5. MAP Sensor 39 kPa
6. St. Term FT1 – 0.8% Lean
7. Lg. Term FT1 – 1.6% Lean
8. Fuel 1 Stat. Closed Loop
9. Fuel 2 Stat. Not used
10. Load value 25.5%
1st, 2nd or 3rd in parentheses here represents which
position in the order the malfunction is detected.
ENGINE GENERAL INFORMATION AND DIAGNOSIS (J18 ENGINE WITH WU TWC) 6-2-7
Warm-up Cycle
A warm-up cycle means sufficient vehicle operation such that the
coolant temperature has risen by at least 225C (405F) from engine
starting and reaches a minimum temperature of 705C (1605F).
Driving Cycle
A "Driving Cycle" consists of engine startup, driving mode where
a malfunction would be detected if present, and engine shutoff.
2 Driving Cycles Detection Logic
The malfunction detected in the first driving cycle is stored in ECM
memory (in the form of pending DTC) 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 driving 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 cycle
detection logic.
Freeze Frame Data
ECM stores the engine and driving conditions (in the form of data
as shown at the left) at the moment of the detection of a malfunction
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 malfunction was detected by checking the freeze frame data.
Also, ECM has a function to store each freeze frame data for three
different malfunctions in the order as the malfunction is detected.
Utilizing this function, it is possible to know the order of malfunc-
tions that have been detected. Its use is helpful when rechecking
or diagnosing a trouble.
Priority of freeze frame data:
ECM has 4 frames where the freeze frame data can be stored. The
first frame stores the freeze frame data of the malfunction which
was detected first. However, the freeze frame data stored in this
frame is updated according to the priority described below. (If mal-
function 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 at initial detection of malfunction
1 among misfire detected (P0300-P0304), fuel system
too lean (P0171) and fuel system too rich (P0172)
Freeze frame data when a malfunction other than
2
those in "1" above is detected
FREEZE FRAME DATA IN FRAME 1