Honda BF135A Manual page 213

BF135A•BF150A
MIL
No. of blinks MIL
24 ON
25 ON
26 ON
27 ON
41 ON
48 ON
When multiple DTC's main codes appear:
MIL
No. of blinks MIL
7, 13 ON
6, 7 ON
10, 13
24, 25
27, 48
Detected unit
ECT sensor 2 (Low voltage)
ECT sensor 3 (Low voltage)
EOP switch (Current)
ECT sensor 4
(Sensor voltage)
A/F sensor heater (Current)
A/F sensor (Current)
Detected unit
ECM (Sensor voltage)
ECM (Sensor voltage)
Probable problem part
• Open or short circuit in the ECT sensor 2 wire
• Faulty ECT sensor 2
• Faulty ECM
• Open or short circuit in the ECT sensor 3 wire
• Faulty ECT sensor 3
• Faulty ECM
• Open or short circuit in the EOP switch wire
• Faulty ECM
• Open or short circuit in the ECT sensor 4 wire
• Faulty ECT sensor 4
• Faulty ECM
• Open or short circuit in the A/F sensor
heater wire
• Faulty A/F sensor heater
• Faulty ECM
• Open or short circuit in the A/F sensor wire
• Faulty A/F sensor
• Faulty ECM
Probable problem part
• Open circuit in the VCC (sensor power
supply) line
• Open circuit in the SG (sensor ground) line
Ref. page
5-84
5-86
5-87
5-89
5-90
5-92
Ref. page
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5-60