Checking Procedure - TOHATSU TLDI 40 Service Manual

(1) Checking Procedure

q Are any engine cables disconnected?
CH
• Confirm that battery cables are connected to battery.
• Confirm that cable connectors are firmly secured in place.
w Is the circuit breaker in the Off position due to having been tripped?
CH
• Run a hand over the motor to check for overheating as this may indicate a tripped breaker. Allow
motor to cool for 3 minutes.
e Is the fuse burned out?
CH
• Open the engine cover and inspect the fuses installed on the electric bracket.
r
Is there sufficient power in the battery?
CH
• Make sure that the battery outputs 12V and 100AH or more.
• Check specific gravity of battery fluid. Recharge if specific gravity is 1.22 or less at a temperature
of 20°C (68°F).
• Try turning over the starter motor. If it turns over, the battery is OK.
t Is the wiring connected properly?
CH
• Check for improperly connected wiring using the wiring diagram.
y Are the switches operating properly?
CH
• Checking Main Switch:
Turn the main switch on. If the choke solenoid, starter motor and beeper (buzzer) function the main
switch is okay.
Use a tester to confirm that current is passing between the red lead lines. Okay if conductive when
the switch is ON.
• PT&T switch:
Disconnect the sky blue (or pink) lead on the solenoid switch installed on the engine's electric
bracket and touch the plug against the connector on the red cable. If the PT&T operates, it
indicates a faulty PT&T switch (UP: Sky blue, DN: Pink).
The alternative is to use an electrical tester to check the conductivity of the PT&T switch unit.
Check for conductivity between the red and sky blue leads when the switch is set to UP.
Check for conductivity between the red and pink leads when the switch is set to DN.
• Solenoid Switch:
Disconnect the sky blue (or pink) solenoid lead mentioned above and touch it against the red cable
terminal. If this causes a clicking sound, the solenoid switch is okay.
Next, check the solenoid switch connectors. The connectors are okay if they produce the results
shown in the following table when the solenoid switch is turned On and Off.
Note: The red, blue and green cables must be disconnected.
Simply switching the switch between UP and DN will suffice if it is known that one of the connectors
is okay.
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