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HONDAMATIC
BEFORE STARTING
TROUBLESHOOTING
SELF-DIAGNOSTIC FUNCTION
OUTLINE
The
engine control
module
(ECM)
that
controls
the
Hondamatic
system
has a
self-diagnostic
function to
constantly
monitor the
system
.
The ECM checks the
condition of
the Hondamatic system by detecting
the
signals
from each sensor, switch
and control
motor when the
ignition
swit
ch is ON and during
driving
.
•
When the ECM detects a problem, it indicates the
, - - - - - - - - - - - - - - - - - ,
problem by blinking
•
__
H
at the gear position indi-
GEAR POSITION INDICATOR
24-8
cator.
Note how many times indicator
blinki
ng,
deter-
mine the detection item (page 24- 11) and
per-
form the troubleshooting
(page
24-12).
•
Only
one current
prob
lem code will be indicated
even if two or more problems occur.
•
Once the ECM detects a problem, it stores the
problem
code in
the
erasable
memory. It can be
indicated
as freeze
code
by retrieval of problem
code !page
24-9).
\
~@
@®
@
~
I~
'
. . P
f)
83'1
I
-----
,
CD
,-,
!.1
J-I
0
-
1 < 1:1'
8
Q/I,
I
~
•
The
shift
function can be reset by turning the
ignition switch
OFF and ON, but the shift control
stops when the
ECM detects the problem again
.
•
After performing troubleshooting
(including ini-
' - - - - - - - - - -
--
-- - - -
---'
tial
setting;
24-6),
erase the problem code(s) and
test·drive the
vehicle
to be sure that the
prob-
lem(s)
has/have
been
repaired.
3 sec
.
.
'
sec.
1
sec.
,
"
, .,
"
-·-"ON
OFF
........... .
.
.
.
One Blink
,
.
FAIL-SAFE FUNCTION
•
i
Current problem
code
!Example:
Blinking 3
times"" Problem
code 3)
The ECM
also
has the fail·safe function to secure the
vehicle
function.
When
a
problem
occurs
and the ECM detects the
problem in
the Hondamatic system, the ECM stops
the
automatic
transmission shifti ng function and
control
defaults to fail-safe mode so tha
t
the
vehicle
can
be
still
driven.
_ _
~
.~
Pattern
repeated
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