Suzuki Wagon R Manual page 722

FAIL SAFE FUNCTION
This function is provided by the safe mechanism that assures safe driveability even when the solenoid valve, sen-
sor or its circuit fails.
The table below shows the fail safe function for each fail condition of sensor, solenoid or its circuit.
AREA
Throttle opening signal
circuit
Input rev. signal/
output rev. signal
circuit faulty
Shift switch and its circuit
A/T fluid temp. sensor
Shift solenoid or its circuit
Lock-up solenoid or its
circuit
Internal relay for solenoids
Fail safe condition
1. Circuit open/shorted
2. Abnormal signal
3. Abnormal ECM output
No signal or abnormal signal inputted
1. No shift switch signal input
2. Two or more shift switch signals
input
Low fluid temp. signal inputted for a
long time
Abnormal voltage is detected.
Abnormal voltage is detected.
1. Relay shorted (Deposited)
2. Relay circuit open
CHANGE MECHANISM
The same select pattern shift lever is used as the floor type and fre-
quently used "N" and "D" ranges are made selectable freely.
AUTOMATIC TRANSMISSION (4 A / T) 7B-11
Fail safe function
1. Choosing gear as throttle at
"full closed".
2. Choosing gear as throttle at
"full open".
3. Vehicle coasted down when brake is
applied and engine rev. is less than
1,500 rpm.
D When vehicle running, the gear is
fixed to the gear right before the
trouble is occurred and O/D is cut.
D When vehicle running and in shift
change, the gear is fixed to the gear
which is going to be selected. Lock-
up function is turned OFF.
D When trouble found vehicle at stop,
the gear is selected as follows; P:P,
R:R, N:N, D:3rd, 2:2nd, L:1st.
1. The gear is fixed to "R" range.
2. When trouble found vehicle at stop,
if 2 or more signal inputted at the
same time, the gear is selected as
. .
follows: P R!R, R N!R, N
. .
D 2!D, 2 L!2
D When vehicle running, the gear is
fixed to the gear right before the
trouble is occurred.
D When 3 or more signals inputted, the
gear is fixed to "R" range.
No lock-up.
A/T power relay is turned OFF and the
gear is selected as follows: P:P, R:R,
N:N, D/2/L:3rd
No lock-up.
1. The gear is selected as follows:
P:P, R:R, N:N, D:3rd, 2:2nd, L:1st.
2. All operating signals for solenoids
are cut.
.
D!D,