JLG ERT2669, Руководство по обслуживанию и ремонту

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SECTION 5 - JLG CONTROL SYSTEM
5-30 31215923
437 4 3 "Engine Trouble Code (1270:2 - Ignition
Coil3 Error)"
No Response. • ECU is detecting LSI System has an Open Circuit or Short to
Battery.
• Check harness for short to ground or open circuit; check for
primary coil open.
437 4 3 "Engine Trouble Code (651:2 - Injector1
Error)"
No Response. • ECU is Not detecting a Serge in Injector 1.
• Check Injector for a malfunction.
437 4 3 "Engine Trouble Code (652:2 - Injector2
Error)"
No Response. • ECU is Not detecting a Serge in Injector 2.
• Check Injector for a malfunction.
437 4 3 "Engine Trouble Code (653:2 - Injector3
Error)"
No Response. • ECU is Not detecting a Serge in Injector 3.
• Check Injector for a malfunction.
437 4 3 "Engine Trouble Code (523719:2 - Pre02
Heater Error)"
No Response. • ECU is detecting that the 02 Heater is running and the cur-
rent is greater than or equal to 10.5A or less than or equal to
.17A; Heater is Not running and the Voltage is less than 3.0V.
• Check heater for damage or faulty wiring.
437 4 3 "Engine Trouble Code (523726:2 - Post02
Heater Error)"
No Response. • ECU is detecting that the 02 Heater is running and the cur-
rent is higher than 10.5A or less than or equal to .17A;
Heater is Not running and the Voltage is less than 3.0V.
• Check heater for damage or faulty wiring.
437 4 3 “Engine Trouble Code (523710:2 - F/B
Error)"
Engine Will Shutdown. • ECU is detecting the difference between Target TPS and
Actual TPS is higher than 0.6V when the Target TPS value is
less than 1.5V; the difference is higher than 1.0V and Target
TPS value is 1.5V or higher.
• Check for ETV malfunction.
437 4 3 "Engine Trouble Code (523710:0 - F/B
Error2 (Valve Open))"
Engine Will Shutdown. • ECU is detecting the difference between Target TPS and
Actual TPS is greater than or equal to 0.5V.
• Check for ETV malfunction.
437 4 3 "Engine Trouble Code (523710:1 - F/B
Error2 (Isc Close))"
Engine Will Shutdown. • ECU is detecting the difference between Target TPS and
Actual TPS is greater than or equal to 0.05V.
• Check for ETV malfunction.
437 4 3 "Engine Trouble Code (523711:2 - Motor
Error)"
Engine Will Shutdown. • ECU is detecting a Short to Ground/Battery or Temperature
Abnormality.
• Check for ETV malfunction.
437 4 3 "Engine Trouble Code (523712:2 - F/B
Error3)"
Engine Will Shutdown. • ECU is detecting the ETV Drive Duty is Higher than 100% or
higher.
• Check for ETV malfunction.
437 4 3 "Engine Trouble Code (523712:1 - Motor
Current Open Error)"
Engine Will Shutdown. • ECU is detecting the Motor Power Supply Voltage is Less
than 6.0V.
437 4 3 "Engine Trouble Code (523712:7 - Return
Spring Breakage)"
Engine Speed Limited to 1900 rpm. • ECU is detecting the Middle Valve Adaptive Value is Higher
than 3.8V.
• Check for ETV malfunction.
437 4 3 "Engine Trouble Code (523713:0 - Dbw
Open Stuck)"
Engine Will Shutdown. • ECU is detecting the Engine RPM is Higher than 4000 rpm
and the Filling-Up Efficiency is greater than or equal to 50%.
• Check for ETV malfunction.
437 4 3 "Engine Trouble Code (523716:2 - Gaso-
line Fuel System Error)"
Engine Will Limit RPM to 2500 and
Throttle to 30%. • The ECU is detecting the Compensation/Adaptive Value of 02
F/B is Higher than 35% or Less than -35%.
• Check for Exhaust leak upstream, fuel pressure/property
abnormality, injector stuck closed, wiring harness damage
or O2 sensor malfunction.
DTC
Code
Flash
Code
Description Action Item Check List