N2"
FUEL SYSTEM/ENGINE
MANAGEMENT 9
15. FREEZE FRAME
FREEZE
F R R !7 E
PCRLCULR
TEDD
LOR
D
1
996
I
TUR
T E R
Tfl7P
7
51:1
16. STORED DTCS
S T
0
RIf Q !O TC 5
I
I
I
VRETURN
TO
D TC 5
I
C
L
EAR D T
C
5
I
When a fault occurs which causes a DTC to be stored in
the memory, the engine condition data at that instant is
logged in the ECM. If another, more serious DTC is
subsequently set, the original DTC data is automatically
erased and new data associated with the latest DTC is
logged in its place.
By selecting
`FREEZE FRAME',
this information
becomes available on the screen to aid diagnosis. Scroll
the text up or down to view the data. More information
can be gained by scrolling the text line in question to line
3 (?), then press the
Help
key (?) as before. Press the
Validation key `*' to display
`STORED DTCS'
(operation
16).
FREEZE FRAME DATA AVAILABLE
Function Memorised
Result Reported (Scale)
Calculated load
0-100%
Coolant temperature
—40— +215°C
Idle fuel trim
—100 — + 99.2%
Off idle fuel trim
Not used
Engine speed
0 — 16,383 RPM
Air temperature
—40 — +215°C
Ignition Advance
—64° — +63.5°
Throttle Position
0-100%
Barometric pressure
0 - 983 mm/Hg
Lambda fuel trim *
—100 — +
99%
Fuel system status *
Open or closed loop
Oxygen sensor voltage *
0 —
1.25 Volts.
2 options are now available:
Scroll to
`RETURN TO DTCS'
and press the Validate key
`
*' to return to operation 13.
Scroll to
`CLEAR DTCS'
and press the Validation key `*'
to go on to operation 17.
NOTE:
•
A full list of all the possible DTCs can be found
earlier in this section.
*
Closed loop models only.
9.39
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