Suzuki Swift Sport 2004 Service & Repair Manual page 694

5A-50 Automatic Transmission/Transaxle:
DTC Confirmation Procedure
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.
1) Connect scan tool to DLC with ignition switch OFF, if available.
2) Clear DTC in TCM memory and start engine.
3) Start vehicle and increase vehicle speed to about 40 km/h (25 mile/h) for 20 minutes or more.
4) Stop vehicle and check DTC.
DTC Troubleshooting
Step
1 Was "A/T System Check" performed?
2 Check transmission fluid temperature circuit for open
1) Turn ignition switch OFF.
2) Disconnect TCM connectors from TCM.
3) Check for proper connection to transmission fluid
temperature sensor at terminals "C34-11" and "C34-12".
4) If OK, check continuity between terminals "C34-11" and
"C34-12" of disconnected harness side TCM connector.
Is continuity indicated?
3 Check transmission fluid temperature circuit for IG
short
1) Cool down A/T fluid temperature under ambient
temperature.
2) Connect TCM connectors to TCM with ignition switch
OFF.
3) Turn ignition switch ON.
4) Measure voltage between terminal "C34-11" of TCM
connector and ground.
Is it 4.6 V or more?
4 Inspect transmission fluid temperature sensor
1) Inspect transmission fluid temperature sensor referring
to "Transmission Fluid Temperature Sensor Inspection".
Is result satisfactory?
Action Yes
Go to Step 2.
Go to Step 3.
"LT GRN" circuit shorted
to power circuit.
If circuit is OK, go to
Step 4.
Intermittent trouble or
faulty TCM.
Check for intermittent
referring to "Intermittent
and Poor Connection
Inspection in Section
00".
If OK, substitute a
known-good TCM and
recheck.
No
Go to "A/T System
Check".
"LT GRN" or "ORN"
circuit open.
Intermittent trouble or
faulty TCM.
Check for intermittent
referring to "Intermittent
and Poor Connection
Inspection in Section
00".
If OK, substitute a
known-good TCM and
recheck.
Replace transmission
fluid temperature
sensor.