Suzuki Liana RH418, Supplementary Service Manual

Page: 244 / 371

5A-18 Automatic Transmission/Transaxle:
Fail Safe Table
S3RH0B5104008
This function is provided by the safe mechanism that assures safe driveability even when the solenoid valve, sensor or
its circuit fails. The following table shows the fail safe function for each fail condition of sensor, solenoid, TCM or its
circuit.
DTC No. Trouble area Fail safe operation
) P0753
21
22 Shift solenoid valve-A or its
circuit • Power supply to shift solenoid valve, TCC solenoid valve and
pressure control solenoid valve is cut.
• Gear position is fixed as shown below.
– When select lever position is
R: Reverse
D: 4th (O/D)
2: 3rd
L: 1st
• Lock-up function is inhibited to operate. (Except P1702)
) P0758
23
24 Shift solenoid valve-B or its
circuit
) P0748
41
42 Pressure control solenoid valve
or its circuit
) P1702 52 TCM
) P0743
25
26
TCC solenoid valve or its circuit
• Lock-up function is inhibited to operate.
• Up-shift to 4th gear is inhibited when A/T fluid temperature is
150
°
C (302
°
F) or higher.
• When TCC solenoid valve circuit open or shorted to power
circuit, and vehicle speed is less than 10 km/h (6 mile/h),
gear position is fixed in 1st gear for prevention of engine stall.
) P0705 34
Transmission range sensor or
its circuit
• In case of circuit open, selected range is set as “D” range.
• In case of circuit short (In case that 2 or more sensor signals
are inputted), selected range is set in priority order shown
below.
N> R> L> 2> D> P
)
P0710
36
38 Transmission fluid temperature
sensor or its circuit Line pressure raising control at low fluid temperature is
inhibited.
)
P0715 37
Input shaft speed sensor or its
circuit • Power supply to shift solenoid valve and TCC solenoid valve
is cut.
• Gear position is fixed as shown below.
– When select lever position is
R: Reverse
D: 4th (O/D)
2: 3rd
L: 1st
• Lock-up function is inhibited to operate.
• Reverse control operation, which inhibit reverse driving at “R”
range while vehicle runs forward more than 7 km/h (4 mile/h),
is inhibited.
) P0720 31
Output shaft speed sensor or
its circuit
)
P0725 35 Engine speed signal circuit • Power supply to shift solenoid valve and TCC solenoid valve
is cut.
• Gear position is fixed as shown below.
– When select lever position is
R: Reverse
D: 4th (O/D)
2: 3rd
L: 1st
• Lock-up function is inhibited to operate.
• Torque reducing requirement to ECM (torque reduction
control) is inhibited.
)
P1700
32
33
Throttle position signal circuit
) P1730 64 Engine torque signal circuit
)
P1705 51
Engine coolant temperature
signal circuit
Engine coolant temperature is assumed as normal operating
temperature, and controls of overdrive and lock-up is released
from inhibition.
)
P1895 27 Torque reduction signal circuit
Torque reducing requirement to ECM (torque reduction control)
is inhibited.