Suzuki sq-416-420-625 Service Manual page 449

DTC P0743 (DTC NO.65/66) TCC (LOCK-UP) SOLENOID ELECTRICAL
WIRING DIAGRAM
G16/J20 Engines
G16/J20 Engines
H25 Engine
DTC DETECTING CONDITION AND TROUBLE AREA
DTC DETECTING CONDITION
Voltage at terminal C51-1-8 for G16/J20 (C51-1-2 for
H25) of PCM is high while TCC solenoid OFF is com-
manded or low while TCC solenoid ON is comman-
ded.
DTC CONFIRMATION PROCEDURE
WARNING:
D 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.
D 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.
3) Start engine, warm it up to normal operating temperature and shift transfer lever to "2H" or "4H" range.
4) Shift selector lever in D range and keep it there for 10 seconds.
5) Increase vehicle speed to about 80 km/h (50 mph) in 4th gear and in D range.
6) Keep driving at above speed for 20 seconds.
7) Release accelerator pedal, decrease vehicle speed and stop vehicle.
8) Check DTC and/or pending DTC.
AUTOMATIC TRANSMISSION (4 A / T) 7B1-47
H25 Engine
TROUBLE AREA
D TCC (lock-up) solenoid valve
D TCC (lock-up) solenoid valve circuit
D PCM
1. PCM
2. Shift solenoid-A
3. Shift solenoid-B
4. TCC solenoid