TOHATSU BFT75A Service Manual page 155

dummyhead dummyhead
FUEL SYSTEM
DTC MIL
7-2 ON
8-1 ON
8-2 ON
10-1 ON
10-2 ON
14-1 ON
21-1 ON
(BF90D/
BF100A only)
22-1 ON
22-2 ON
23-1 ON
(BF90D/
BF100A only)
41-2 ON
5-14
Detected component
TP sensor (voltage too high)
CMP sensor (no pulse)
CMP sensor (abnormal pulse)
IAT sensor (voltage too low)
IAT sensor (voltage too high)
IAC valve (control failure)
VTEC solenoid valve
(failure)
EOP sensor (voltage too low)
EOP sensor (voltage too high)
Knock sensor (no pulse)
HO2S heater (failure)
Probable cause
• Loose or poor contact of the
connector
• Open circuit in TP sensor wire (SG2)
• Faulty TP sensor
• Loose or poor contact of the
connector
• Open or short circuit in CMP sensor
wire (TDC)
• Open circuit in CMP sensor wire
(IGP2)
• Open circuit in CMP sensor wire
(LG1)
• Faulty CMP sensor
• Loose or poor contact of the
connector
• Faulty CMP sensor
• Faulty cam purser plate
• Loose or poor contact of the
connector
• Short circuit in IAT sensor wire (TA)
• Faulty IAT sensor
• Loose or poor contact of the
connector
• Open circuit in IAT sensor wire (TA)
• Open circuit in IAT sensor wire (SG2)
• Faulty IAT sensor
• Loose or poor contact of the
connector
• Open or short circuit in IAC valve wire
(EACVP)
• Open or short circuit in IAC valve wire
(EACVM)
• Faulty IAC valve
• Loose or poor contact of the
connector
• Open or short circuit in VTEC solenoid
valve wire
• Faulty VTEC solenoid valve
• Loose or poor contact of the
connector
• Short circuit in EOP sensor wire
(POIL)
• Open circuit in EOP sensor wire
(VCC2)
• Faulty EOP sensor
• Loose or poor contact of the
connector
• Open circuit in EOP sensor wire
(POIL)
• Open circuit in EOP sensor wire
(VCC2)
• Open circuit in EOP sensor wire
(SG2)
• Faulty EOP sensor
• Loose or poor contact of the
connector
• Open or short circuit in knock sensor
wire (KS)
• Faulty knock sensor
• Loose or poor contact of the
connector
• Open circuit in HO2S heater wire
• Faulty HO2S
Ref. page
5-28
5-29
5-30
5-31
5-32
5-33
5-34
5-35
5-36
5-37
5-38