COMMON RAIL SYSTEM
07-CR-E5,07-CR-TE5,07-CR-TIE5, DM
1-S45
1. Check the Fuel Feed Pump Operation
1. Turn the key switch ON and check that the fuel feed pump is
operating.
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2. Check the DTC
1. Turn the key switch ON and check the DTC.
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3. Comparison of Fuel Economy
1. Compare with a normal device working under the same
operating conditions and measure the amount of consumed fuel
(amount left in the tank).
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4. Check the Engine and Machine Condition
1. Check for the usage habits of the user or use of non-standard
parts.
• Use of non-standard parts such as tires, wheels and intake /
exhaust system parts
• Used under poor fuel consumption conditions
– Engine used for a long time under a high load
– Long idling time
• Faulty maintenance
– Engine oil level and dirt
– Air filter, fuel filter dirt and clogging
– Radiator clogging
2. Check for malfunctions in the powertrain.
• Check the driving resistance
– Is a large resistance required for actuation?
– Is the tire air pressure correct?
– Is there brake drag?
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Service
specification
Operates when the key switch is turned ON.
OK Go to "2. Check the DTC".
NG Check in accordance with "6.[2] FUEL SYSTEM INSPECTION
PROCEDURE - 5. Check the Fuel Feed Pump". (Refer to page 1-S324)
(1) Fuel Feed Pump
Service
specification
No DTC is output.
OK Go to "3. Comparison of Fuel Economy".
NG Check in accordance with the troubleshooting procedures for each DTC.
(a) CAN1 Connector
OK Use a specific example to explain and make the user understand that
under some operating conditions the fuel consumption will increase and
that the machine is not malfunctioning.
NG Go to "4. Check the Engine and Machine Condition".
OK Go to "Check for malfunctions in the powertrain".
NG Give guidance to the user.
OK Go to "5. Check the Fuel System".
NG Adjust or repair the malfunction.
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