Chrysler laser 1990 Technical Information Manual page 275

that provides control to achieve maximum vehicle
safety in the event of an electronic circuit failure or
malfunction, or error caused by the driver. The
control and construction are as described below.
(1) The circuit that supplies hydraulic pressure to
the function elements that don't couple simul-
taneously is composed of a switching valve
device that cannot supply hydraulic pressure
simultaneouslv so that there
locking of the gear train.
(2) Even if there is an attempted shift to Fi (reverse)
Output code
No.
Display pattern
I
16
AUTOMATIC TRANSAXLE
no 'internal
IS
Item
Microprocessor failure
commanded
1 st gear
when driving at high
speed
Open circuit in pulse
generator B
Open or short circuit in
shift control solenoid
valve A
Open or short circuit in
shift control solenoid
valve B
Open or short circuit in
pressure control sole-
out
Gear shifting
chronization
while the vehicle is moving forward at a speed
of 7 km/h (4.3 mph) or higher, the hydraulic
pressure to the low-reverse brake is electrically
interrupted that the shift cannot be made. As
a result, there is, unlike previously, no damage
to the transaxle and no engine stall.
(3) In case the transaxle control unit detects any of
the following states, it considers that. particular
state a "failure" and provides control (Locked in
depending on the item considered a failure.
Fail-safe
Locked in 3rd gear
Locked in 3rd
or 2nd (2, L) gear
Locked in 3rd (D)
or 2nd (2, L) gear
Locked in 3rd gear
Locked in 3rd gear
Locked in 3rd
or 2nd (2, L) gear
of syn- Locked in 3rd (D)
or 2nd (2, L) gear
Remarks
(Relationship to the
self diagnosis function)
When code No. 31 has occur-
times.
red 4 or more
When code No. 32 has occur-
red 4 or more times.
When code No. 33 has occur-
red 4 or more times.
When code No. 41 or 42 has
occurred 4 or more times.
When code No. 43 or 44 has
occurred 4 or more times.
When code No. 45 or 46 has
occurred 4 or more times.
When code No. 51,52,53 or
54 has occurred 4 or more
times