5-17
BF135A•BF150A
When multiple DTC’s main codes are indicated:
DTC
PGM-FI MIL
Detected unit
Probable problem part
Ref. page
140-1
MIL comes ON
ECT sensor 2 (Voltage too low)
• Short circuit in ECT sensor 2 wire
• Faulty ECT sensor 2
• Faulty ECM
140-2
MIL comes ON
ECT sensor 2 (Voltage too high)
• Open circuit in ECT sensor 2 wire
• Faulty ECT sensor 2
• Faulty ECM
141-1
MIL comes ON
ECT sensor 3 (Voltage too low)
• Short circuit in ECT sensor 3 wire
• Faulty ECT sensor 3
• Faulty ECM
141-2
MIL comes ON
ECT sensor 3 (Voltage too high)
• Open circuit in ECT sensor 3 wire
• Faulty ECT sensor 3
• Faulty ECM
142-1
MIL comes ON
EOP switch
• Open/short circuit in EOP switch wire
(Abnormal signal)
• Faulty ECM
143-1
MIL comes ON
ECT sensor 4 (Voltage too low)
• Short circuit in ECT sensor 4 wire
• Faulty ECT sensor 3
• Faulty ECM
143-2
MIL comes ON
ECT sensor 4 (Voltage too high)
• Open circuit in ECT sensor 4 wire
• Faulty ECT sensor 4
• Faulty ECM
DTC
PGM-FI MIL
Detected unit
Probable problem part
Ref. page
main
codes
7, 13
MIL comes ON
• Open circuit in VCC line
(power source for sensor)
6,7
MIL comes ON
• Open circuit in SG (sensor ground) line
10,13
48,140
141,143