TOHATSU TLDI 40 Service Manual page 166

Refer to troubleshooting tables.
Replenish engine oil.
* Indicator B staying on after engine oil is replenished indicates severed or shorted line or faulty component.
Refer to troubleshooting tables.
Check wiring and connections and repair or replace components as necessary.
* 1: With regard to injector and ignition coil faults, indicator B does not go on when self-diagnosing modes are enabled while the
engine is off in order to determine operation under proper ECU control.
* 2: Indicator C indicates that there is a severed line or fault in a component.
Remedy: Delete current fault log (using Mode 4), operate (or simply turn over engine for 5 or more seconds) the engine;
then run the self-diagnosing function again to determine the type of fault. In cases where indicator C comes on for the same
malfunction or failure, take remedial measures.
In the case of injectors
In the case of ignition coils ...If only one is indicated as faulty, replace with new ignition coil. If the fault remains, check the wiring.
Replenish engine oil.
* Fault indicator staying on after engine oil is replenished indicates severed or shorted line or faulty component.
Refer to troubleshooting tables.
Replace parts and check wiring and connections for fault; then repair as necessary.
* Note that, even if there are no wiring or component problems, the indicators will indicate presence of a fault when
engine speed fluctuations.
Refer to procedure for restoring TPS initial values.
Replace parts and check wiring and connections for faults, then repair as necessary.
Refer to troubleshooting tables.
Replace parts and check wiring and connections for fault; then repair as necessary.
Remedial Measures and Added Notes
...Replace with new injector. If the fault remains, check the wiring.
...If all three are indicated as faulty, it means that there could be a short in the wiring or in one
of the ignition coils.
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