TOHATSU TLDI MD 115A SERIES Service Manual page 321

Refer to troubleshooting.
Replace the component, or check wiring and connections for abnormality, and repair if necessary.
*1. When an injector of ignition coil malfunctions, the lamp B does not go on in the self-diagnosing mode where engine is not
operating to check that the components are under control of ECU.
*2. If the lamp C goes on, the wiring may be broken or a component may be faulty at present.
→Corrective action : Delete current fault log (Mode 4. Refer to "Deleting Malfunction Log".) Then, start the engine (or crank for 5
seconds or longer) to confirm the details of malfunction or abnormality in the self-diagnosing mode. Take a corrective action if
the same malfunction or abnormality is indicated with the lamp C.
→If an ignition is suspected to be defective --- Check wirings and connectors, and if no problem is found, replace injector.
→If an ignition coil is suspected to be defective --- If "only one malfunctions" indication is displayed, replace the component with
*3. Ignition coil malfunction may be indicated if the insulation resistance is reduced due to build up of carbon on the spark plug. Thus,
check spark plug also before replacing ignition coil.
Replenish engine oil.
* If the lamp indicating a malfunction is still lit after replenishing engine oil, a short-circuit may exist or a component may be faulty.
Refer to troubleshooting.
Replace the component, or check wiring and connections for abnormality, and repair if necessary.
Replace the component, or check wiring and connections for abnormality, and repair if necessary.
* The lamp may show malfunction even when no faulty component or wiring exists if the engine revolution changes much.
Refer to TPS initial value resetting method.
Replace the component, or check wiring and connections for abnormality, and repair if necessary.
TLDI 115A 2007
Remedial Measures and Added Notes
new one, and if the fault indication still appears, check the wiring.
If "all of four malfunction" indication is displayed, a short-circuit may exist, or any
one of the ignition coils may be short-circuited internally.
9
9-41