5-15
BF135A•BF150A
a. TROUBLESHOOTING GUIDE BY DTC
–: DTC does not appear.
DTC
PGM-FI MIL
Detected unit
Probable problem part
Ref. page
–
MIL does not
ECM
• Open circuit in MIL wire
or
come ON/blinks
• Blown MIL bulb
0-2,
• Open circuit in ECM ground wire or
0-5,
poor grounding
0-8
• Faulty ECM
–
MIL stays ON
ECM
• Open circuit in ECM power supply line
or
• Short circuit in data link connector wire
0-2,
• Short circuit in MIL wire
0-5,
• Short circuit in sensor power supply line
0-8
• Faulty ECM
3-1
MIL stays ON
MAP sensor (Voltage too low)
• Short circuit in MAP sensor wire
• Faulty MAP sensor
• Faulty ECM
3-2
MIL stays ON
MAP sensor (Voltage too high)
• Open circuit in MAP sensor wire
• Faulty MAP sensor
• Faulty ECM
4-1
MIL stays ON
CKP sensor (No pulse)
• Open/short circuit in CKP sensor wire
• CKP sensor
• Faulty ECM
4-2
MIL stays ON
CKP sensor (Abnormal pulse)
• Faulty CKP sensor
• Faulty ECM
6-1
MIL stays ON
ECT sensor 1 (Voltage too low)
• Short circuit in ECT sensor 1
• Faulty ECT sensor 1
• Faulty ECM
6-2
MIL stays ON
ECT sensor 1 (Voltage too high)
• Open circuit in ECT sensor 1 wire
• Faulty ECT sensor 1
• Faulty ECM
7-1
MIL stays ON
TP sensor (Voltage too low)
• Open/short circuit in TP sensor wire
• Faulty TP sensor
• Faulty ECM
7-2
MIL stays ON
TP sensor (Voltage too high)
• Open circuit in TP sensor wire
• Faulty TP sensor
• Faulty ECM
8-1
MIL stays ON
CMP sensor (No pulse)
• Open/short circuit in CMP sensor
• Faulty DC1 sensor
• Faulty ECM
8-2
MIL stays ON
CMP sensor (Abnormal pulse)
• Open/short circuit in CMP sensor
• Faulty CMP sensor
• Faulty ECM