Mitsubishi Fuso CANTER FE85DE6SLGP, Руководство по ремонту

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13E-50
P242F: DPF MFF (Accumulation) (warning lamp flashes: 55)
P2453: DPF Diff SNSR (Plausi) & MFF (warning lamp flashes: 97)
P2454: DPF Diff SNSR (Low) & MFF (warning lamp flashes: 97)
P2455: DPF Diff SNSR (High) & MFF (warning lamp flashes: 97)
P2457: EGR Cooler Performance (warning lamp flashes: 2)
Generation condition The voltage of diesel particulate filter pressure sensor is excessively high.
Recoverability
System recovers if any valid signal is input when starter switch is turned from
OFF to ON (the warning lamp does not go out unless 3 consecutive valid signals
are input).
Control effected by electronic control unit Injection quantity is limited.
Possible causes • Clogged diesel particulate filter
Generation condition
Output of diesel particulate filter pressure after start of engine is too low (vacu-
um).
Recoverability
System recovers if any valid signal is input when starter switch is turned from
OFF to ON (the warning lamp does not go out unless 3 consecutive valid signals
are input).
Control effected by electronic control unit Injection quantity is limited.
Possible causes
• Open-circuit or short-circuit of harness between engine electronic control unit
and diesel particulate filter pressure sensor
• Malfunction of each connector
• Malfunction of diesel particulate filter differential pressure sensor
• Malfunction of engine electronic control unit
• Dissolution, blockage, and damage of diesel particulate filter
Generation condition Diesel particulate filter pressure sensor circuit shorted to ground.
Recoverability
System recovers if any valid signal is input when starter switch is turned from
OFF to ON (the warning lamp does not go out unless 3 consecutive valid signals
are input).
Control effected by electronic control unit Injection quantity is limited.
Possible causes
• Open-circuit or short-circuit of harness between engine electronic control unit
and diesel particulate filter pressure sensor
• Malfunction of each connector
• Malfunction of diesel particulate filter differential pressure sensor
• Malfunction of engine electronic control unit
Generation condition
Diesel particulate filter differential pressure sensor circuit shorted to power
source.
Recoverability
System recovers if any valid signal is input when starter switch is turned from
OFF to ON (the warning lamp does not go out unless 3 consecutive valid signals
are input).
Control effected by electronic control unit Injection quantity is limited.
Possible causes
• Open-circuit or short-circuit of harness between engine electronic control unit
and diesel particulate filter pressure sensor
• Malfunction of each connector
• Malfunction of diesel particulate filter differential pressure sensor
• Malfunction of engine electronic control unit
Generation condition
Engine electronic control unit has judged operation of exhaust gas recirculation
cooler abnormal as a result of diagnosis of exhaust gas recirculation system.
Recoverability
System recovers if any valid signal is input when starter switch is turned from
OFF to ON (the warning lamp does not go out unless 3 consecutive valid signals
are input).
Control effected by electronic control unit
• Injection quantity is limited.
• Exhaust gas recirculation control is stopped.
• Throttle control is stopped.
Possible causes • Malfunction of Exhaust gas recirculation system.
TROUBLESHOOTING