Tldi Self-Diagnosing Functions; Glossary Of Self-Diagnosis Terminology - TOHATSU TLDI 40 Service Manual

2. TLDI Self-Diagnosing Functions

The TLDI engine self-diagnosing function is used to display detailed information on the locations of faults in
the electrical system that have been detected by the engine control unit (ECU). Special devices, such as
monitoring equipment and personal computers, are not required for the self-diagnosis function. It utilizes a
system of key switch operation, tachometer readings and three types of warning indicator lights to provide
the information required for the four operating modes listed below.
That TLDI self-diagnosis function is comprised of the following four modes.
Mode 1: tachometer operation test
Mode 2: engine operating time display
Mode 3: fault location and fault log display
Mode 4: fault log delete

(1) Glossary of Self-Diagnosis Terminology

Key switch:
On the EP models, the key switch is located on the remote control box. On the EF models, it is located
on the switchbox attached to the tiller handle. There are four key positions, the Off, On, Start and the
key pressed at On position. The self-diagnosing function is used with the key in the On position.
Warning indicators:
On the EP models, the warning indicators are installed on the tachometer. On the EF models, they are
installed on the switch box attached to the tiller handle.
All three indicators flash and beeps sound when a fault or failure is detected in an electrical component.
(Refer to Warning Indicator Definition Table.)
The self-diagnosing function uses the three indicator lights in combination with the tachometer to
indicate the type of malfunction or failure that has occurred.
(Refer to Fault Indication Table.)
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