TOHATSU BFT115A Service Manual page 171

MIL TROUBLESHOOTING
MIL INDEX
MIL
No. of Condition
blinks
MIL does Detected
not blink component
Stays ON ON
3 Blink
4 Blink
6 Blink
7 Blink
8 Blink
10 Blink
14 Blink
22 Blink
Detected component
ECM
ECM
MAP sensor
(voltage too low or too high)
CKP sensor
(no pulse or abnormal pulse)
ECT sensor 1
(voltage too low or too high)
TP sensor
(voltage too low or too high)
CMP sensor
(no pulse or abnormal pulse)
IAT sensor
(voltage too low or too high)
IAC valve
(abnormal current)
EOP sensor
(voltage too low or too high)
Probable cause
• Loose or poor contact of the connec-
tor
• Faulty indicator light
• Open circuit in MIL wire
• Open circuit in ECM power/ground
cable
• Faulty ECM
Normal with the SCS service check
connector installed - If engine condition
continues without the MIL blinking,
check the following:
• Short circuit in DLC wire
• Short circuit in MIL wire
• Short circuit in sensor power circuit
• Faulty ECM
• Loose or poor contact of the connec-
tor
• Open or short circuit in MAP sensor
wire
• Faulty MAP sensor
• Loose or poor contact of the connec-
tor
• Open or short circuit in CKP sensor
wire
• Faulty CKP sensor
• CKP sensor is not installed properly
• Loose or poor contact of the connec-
tor
• Open or short circuit in ECT sensor 1
wire
• Faulty ECT sensor 1
• Loose or poor contact of the connec-
tor
• Open and short circuit in TP sensor
wire
• Faulty TP sensor
• Loose or poor contact of the connec-
tor
• Open or short circuit in CMP sensor
wire
• Faulty CMP sensor
• CMP sensor is not installed properly
• Loose or poor contact of the connec-
tor
• Open and short circuit in IAT sensor
wire
• Faulty IAT sensor
• Loose or poor contact of the connec-
tor
• Open and short circuit in IAC valve
wire
• Faulty IAC valve
• Loose or poor contact of the connec-
tor
• Open and short circuit in EOP sensor
wire
• Faulty EOP sensor
FUEL SYSTEM
Ref.
page
4-15
5-55
5-58
5-59
5-61
5-62
5-64
5-66
5-67
5-68
5-53