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Part 2. ECU Signal Lamps Instant Checking Table (Fig. 2)
Number
Name
Normal Performance
Abnormal
Performance
and Notice
Main measurement
1
Fuel Pump
Signal
Light
Flash after engine works
Always off, meaning no
driver of oil pump
Check fuel pump driver
connections and wires
2
Injector
Signal
Light
Flash after engine works
Always off, meaning no
driver of oil pump
Check
injector
driver
connections and wires
3
Igniter
Signal
Light
Flash after engine works
Always off
Check first the crankshaft
position sensor, and its
connections and wires
4
Oxygen
Sensor
Signal
Light
Alternating light and
dark, 1-3 times a second
during
closed-loop
oxygen adjustment
Always off, meaning
does
not
enter
closed-loop
oxygen
concentration adjustment
Check oxygen sensor, and its
concentration and wires.
Summary of Contents for PST300-20
Page 9: ...6 PARTS LOCATION PST300C PST300R ...
Page 10: ...7 PST300C ...
Page 11: ...8 PST300C ...
Page 59: ...56 ...
Page 61: ...58 Attachment 2 Pin assignment diagram of ECU socket viewed in a direction facing the socket ...