Suzuki SWIFT RS415 2017, Service Manual

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5A-42 Automatic Transmission:
No Lock-Up Occurs
S4RS0A5104020
System Description
TCM turns TCC solenoid OFF under any of the following conditions.
• Brake light switch is turned ON (Brake pedal is depressed).
• Transmission fluid temperature is less than 60
q
C (140
q
F).
• Throttle opening is as much as 0%.
• TCM detects the following DTCs.
P0705 / P0707 / P0712 / P0713 / P0717 / P0722 / P0787 / P0788/ P0962 / P0963 / P0973 / P0974/ P0976 / P0977
/ P1702 / P1703 / P1774 / P1777 / P2763 / P2764
Troubleshooting
WARNING:
• When performing a road test, select a place where there is no traffic or possibility of a traffic
accident and be very careful during testing to avoid occurrence of an accident.
• Road test should be carried out with 2 persons, a driver and a tester, on a level road.
3 1) Perform running test under the following conditions and
measure voltage between terminal “C39-16” of TCM
connector and ground, terminal “C39-15” of TCM
connector and ground.
• Engine coolant temperature is in normal operating
temperature.
• Select lever is in “D” range.
• Drive vehicle with 4th gear condition referring to
“Automatic Gear Shift Table: ”.
Voltage between TCM connector and ground
Between terminal “C39-16” of TCM connector and
ground: 0 – 1 V
Between terminal “C39-15” of TCM connector and
ground: 9 – 14 V
Do results satisfy the value?
Faulty shift solenoid
valve, circuit or
transaxle. “BRN” circuit shorted to
power circuit or open, or
“BLK/YEL” circuit
shorted to ground. If
wire is OK, go to Step 4.
4 O/D off switch signal inspection
1) With ignition switch ON, check voltage between terminal
“C38-9” of TCM connector and ground.
O/D off switch specification
O/D off switch OFF (“O/D OFF” lamp does not light):
8 – 14 V
O/D off switch ON (“O/D OFF” lamp lights): 0 – 1 V
Is result as specified?
Substitute a known-
good TCM and recheck. Faulty O/D off switch or
its circuit.
If OK, substitute a
know-good TCM and
recheck.
Step Action Yes No
Step Action Yes No
1 Was “A/T System Check” performed? Go to Step 2. Go to “A/T System
Check: ”.
2 Check DTC
Is DTC P0705, P0707, P0712, P0713, P0717, P0722,
P0787, P0788, P0962, P0963, P0973, P0974, P0976,
P0977, P1702, P1703, P1774, P1777, P2763 and/or P2764
detected?
Perform DTC flow to
repair and retry. Go to Step 3.