TOHATSU BFT75A Service Manual page 185

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FUEL SYSTEM
MIL
No. of blinks Condition
21 Blink
(BF90D/
100A only)
22 Blink
23 Blink
(BF90D/
100A only)
24 Blink
25 Blink
41 Blink
5-44
Detected component
VTEC solenoid valve
(failure)
EOP sensor
(voltage too low or too high)
Knock sensor
(no pulse)
ECT sensor 2
(voltage too low or too high)
ECT sensor 3
(voltage too low or too high)
HO2S sensor heater
(failure)
Probable cause
• Loose or poor contact of the
connector
• Open and short circuit in VTEC
solenoid valve wire
• Faulty VTEC solenoid valve
• Loose or poor contact of the
connector
• Open and short circuit in EOP sensor
wire
• Faulty EOP sensor
• Loose or poor contact of the
connector
• Open and short circuit in knock
sensor wire
• Faulty knock sensor
• Loose or poor contact of the
connector
• Open and short circuit in ECT sensor
2 wire
• Faulty ECT sensor 2
• Loose or poor contact of the
connector
• Open and short circuit in ECT sensor
3 wire
• Faulty ECT sensor 3
• Loose or poor contact of the
connector
• Open circuit in HO2S heater wire
• Faulty HO2S
Ref.
page
5-60
5-61
5-62
5-63
5-64
5-65