Diagnosis Procedure
1.CHECK BATTERY TERMINALS CONNECTION
Check if battery terminals are clean and tight.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair battery terminal connection. Confirm repair by performing complete Charging system test using EXP-800 NI or GR8-1200 NI (if available). Refer to the applicable Instruction Manual for proper testing procedures.
2.CHECK FUSE
Check for blown fuse and fusible link.

Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace the blown fuse or fusible link after repairing the affected circuit.
3.CHECK GENERATOR GROUND TERMINAL CONNECTION
Check if connector F4 terminal 5 is clean.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair connection.
4.CHECK DRIVE BELT TENSION
Check drive belt tension. Refer to EM "Inspection".
Is the inspection result normal?
YES >> Inspection End.
NO >> Repair as needed.

Diagnosis Procedure Regarding Wiring Diagram information. Refer to CHG "Wiring Diagram". CAUTION: When performing this inspection, always use a charged battery that has completed the ...
Instrument panel
1. Headlight/turn signal switch/fog light
switch (if so equipped)
2. Driver's supplemental air bag (P. 1-39)
Horn
3. Meters and gauges. Warning and indicator lights
4. Wiper and washer switch
5. Vents
6. Rear window defroster switch
7. Front passenger air bag status light
8. Hazard warn ...
P0743 Torque converter
DTC Logic
DTC DETECTION LOGIC
DTC
Trouble diagnosis name
DTC detection condition
Possible causes
P0743
Torque Converter Clutch Circuit
Electrical
The following diagnosis conditions
are met, and the TCM
torque converter clutch solenoid
valve current monito ...