Mitsubishi Fuso CANTER FE85DE6SLGP, Руководство по ремонту

Страница: 238 / 336

13E
13E-51
P2562: VGT Position Sensor (warning lamp flashes: 51)
P2670: MPROP Voltage (Low) (warning lamp flashes: 36)
Generation condition
Turbocharger electronic drive unit determines the turbocharger position sensor to
be 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
• Fuel injection rate is limited.
• Turbocharger target opening value is replaced by a backup value.
• Exhaust gas recirculation control is stopped.
• Intake throttle control is stopped.
Possible causes
• Open-circuit or short-circuit of harness between engine electronic drive unit
and turbocharger actuator
• Malfunction of each connector
• Malfunction of motor (built in turbocharger actuator)
• Malfunction of position sensor (built in turbocharger actuator)
• Malfunction of electronic drive unit
• Malfunction of engine electronic drive unit relay
Generation condition
Diagnosis code is generated under either of the following conditions.
(1) MPROP (rail pressure control valve) circuit shorted to ground.
(2) Engine electronic control unit has received too low (0 V) return voltage from
MPROP (rail pressure control valve).
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
• In the case of above problem (1)
• Injection quantity is limited.
• Exhaust gas recirculation control is stopped.
• Throttle control is stopped.
• In the case of above problem (2)
• Injection quantity is fixed to current quantity.
Possible causes
• Malfunction of supply pump
• Malfunction of pressure limiter
• Injector not airtight
• Plugged fuel system