Mitsubishi 6M60-TL, Service Manual

Page: 183 / 330

13E
13E-25
E-05: Common Rail Pressure M/V 1 (warning lamp flashes: 23) P0256
E-05: Common Rail Pressure M/V 1 (warning lamp flashes: 23) P0257
E-06: Common Rail Pressure Defect (warning lamp flashes: 36) P0251
E-06: Common Rail Pressure Defect (warning lamp flashes: 36) P0252
Generation condition
Common rail pressure exceeds standard value for longer than standard period
during mid-range-speed or high-speed use of supply pump.
Recoverability System recovers if signal becomes normal with starter switch in ON position.
Control effected by electronic control unit
• Main injections only enabled.
• Common rail pressure upper limit provided.
• Injection rate limited to predetermined value.
(Common rail pressure and injection quantity are limited.)
Inspection Other
• Inspection of fuel piping (See Gr13A.)
• Inspection or replacement of supply pump. (Have work performed by DENSO
Service Station.)
• Pressure limiter (Have work performed by DENSO Service Station.), main
body of common rail
• Injectors (Have work performed by DENSO Service Station.)
Generation condition
Pressure-feed malfunction occurs because of fault in supply pump assembly
(fault in one cylinder).
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
• Main injections only enabled.
• Common rail pressure upper limit provided.
• Injection rate limited to predetermined value.
(Common rail pressure and injection quantity are limited.)
Inspection Other
• Inspection or replacement of supply pump (Have work performed by DENSO
Service Station.)
Generation condition Fuel is leaking from high-pressure part of system (calculated value).
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 –
Inspection
Actuator test B9: Fuel Leak Check
Other
• Air-bleeding of fuel system (See Gr13A.)
• Inspection of fuel piping (from supply pump to common rail) (See Gr13A.)
• Fuel filter (See Gr13A.)
• Supply pump (Have work performed by DENSO Service Station.), main body
of common rail
• Pressure limiter (Have work performed by DENSO Service Station.)
•
Injectors (Have work performed by DENSO Service Station.)
Generation condition
Common rail pressure is too high and fuel leakage (calculated value) exceeds
standard value.
Recoverability System recovers if signal becomes normal with starter switch in ON position.
Control effected by electronic control unit –
Inspection
Actuator test B9: Fuel Leak Check
Other
• Air-bleeding of fuel system (See Gr13A.)
• Inspection of fuel piping (See Gr13A.)
• Fuel filter (See Gr13A.)
•
Supply pump (Have work performed by DENSO Service Station.)
• Pressure limiter (Have work performed by DENSO Service Station.)
• Injectors (Have work performed by DENSO Service Station.)