Mitsubishi Fuso CANTER FE85DE6SLGP, Руководство по ремонту

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13E-34
P0403: EGR 1 (Actuator Circuit) (warning lamp flashes: 67)
P0404: EGR System (warning lamp flashes: 2)
P0409: EGR 1 (Position Sensor) (warning lamp flashes: 67)
P040C: EGR Gas Temp Sensor (Low) (warning lamp flashes: 9)
Generation condition
Exhaust gas recirculation electronic drive unit has judged that exhaust gas recir-
culation valve motor was faulty.
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.
• Turbocharger control is stopped.
Possible causes
• Open-circuited or short-circuited harness between electronic drive unit and
exhaust gas recirculation valve
• Malfunction of each connector
• Malfunction of motor (built in exhaust gas recirculation valve)
• Malfunction of position sensor (built in exhaust gas recirculation valve)
• Malfunction of electronic drive unit
• Malfunction of electronic drive unit relay
Generation condition Motor abnormality (permanent)
Recoverability
System recovers (power is re-supplied to electronic control unit) if signal be-
comes normal when starter switch is turned OFF → ON.
Control effected by electronic control unit Engine output lowered.
Possible causes • Failure of exhaust gas recirculation system
Generation condition
Exhaust gas recirculation electronic drive unit judges exhaust gas recirculation
position sensor faulty.
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.
• Turbocharger control is stopped.
Possible causes
• Open-circuited or short-circuited harness between electronic drive unit and
exhaust gas recirculation valve
• Malfunction of each connector
• Malfunction of motor (built in exhaust gas recirculation valve)
• Malfunction of position sensor (built in exhaust gas recirculation valve)
• Malfunction of electronic drive unit
• Malfunction of electronic drive unit relay
Generation condition
Intake air temperature sensor 2 voltage is at or below the specified value
(0.15 V).
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
• Open-circuit or short-circuit of harness between engine electronic control unit
and intake air temperature sensor 2
• Malfunction of each connector
• Malfunction of intake air temperature sensor 2
• Malfunction of engine electronic control unit
TROUBLESHOOTING