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JLG Boom Lift Error Codes

JLG Boom Lift Fault Codes list

 

116

Fault Message: ECT higher than expected stage 1

Description: Engine Coolant Temperature reading or estimate greater than the stage 1 limit when operating at a speed greater than defined in the diagnostic calibration.

Corrective Action: Sound audible warning or illuminate secondary warning lamp, disable adaptive learning fuel correction during active fault.

 

117

Fault Message: ECT Voltage Low

Description: Sensor voltage less than the limit defined in the diagnostic calibration.

Corrective Action: Sound audible warning or illuminate secondary warning lamp, disable adaptive learning fuel correction during active fault.

 

118

Fault Message: ECT Voltage High

Description: Sensor voltage higher than the limit defined in the diagnostic calibration.

Corrective Action: Sound audible warning or illuminate secondary warning lamp, disable adaptive learning fuel correction during active fault.

 

122

Fault Message: TPS 1 Low Voltage

Description: TPS sensor voltage lower than the limit defined in the diagnostic calibration.

Corrective Action: Sound audible warning or illuminate secondary warning lamp, shut down engine

 

123

Fault Message: TPS 1 High Voltage

Description: TPS sensor voltage higher than the limit defined in the diagnostic calibration.

Corrective Action: Sound audible warning or illuminate secondary warning lamp, shut down engine

 

217

Fault Message: ECT higher than expected stage 2

Description: Engine coolant temperature reading greater than the stage 2 limit when operating at a speed greater than defined.

Corrective Action: Sound audible warning or illuminate secondary warning lamp, disable adaptive learning fuel correction during active fault.

 

219

Fault Message: RPM higher than max allowed

Description: Engine speed greater than the max governor override speed as defined.

Corrective Action: Sound audible warning or illuminate secondary warning lamp, reduce throttle to limit speed.

 

336

Fault Message: Crank signal input noise

Description: Electrical noise or irregular crank pattern detected causing x number of crank resynchronization events

Corrective Action: Illuminate MIL and/or sound audible warning or illuminate secondary warning lamp and disable fueling correction for remainder of key cycle.

 

337

Fault Message:  Loss of Crank Input Signal

Description: loss of crankshaft position signal while valid camshaft position signals continue for x number of cam pulses.

Corrective Action: Illuminate MIL and/or sound audible warning or illuminate secondary warning lamp.

521

Fault Message: Oil pressure high

Description: Oil pressure is indicating high when the engine has been stopped for more than x seconds.

Corrective Action: Illuminate MIL and/or sound audible warning or illuminate secondary warning lamp, possibly configure for power derate 1 or low rev limit.

 

524

Fault Message: Oil pressure low

Description: Engine oil pressure lower than expected while engine has been running for a minimum amount of time

Corrective Action: Illuminate MIL and/or sound audible warning or illuminate secondary warning lamp, generally configured to derate the engine and trigger an engine shutdown.

 

562

 

Fault Message: Battery voltage low

Description: Battery voltage to ECM less than x volts while the engine is operating at y RPM or greater

Corrective Action: Illuminate MIL and/or sound audible warning or illuminate secondary warning lamp, disable adaptive fueling correction for remainder of key cycle.

 

563

Fault Message: Battery voltage high

Description: Battery voltage to ECM greater than x volts while the engine is running.

Corrective Action: Illuminate MIL and/or sound audible warning or illuminate secondary warning lamp, disable adaptive fueling correction for remainder of key cycle.

 

642

Fault Message: Sensor supply voltage 1 low

Description: ECM 5 volt output is below the acceptable limit.

Corrective Action: Illuminate MIL and/or sound audible warning or illuminate secondary warning lamp.

 

643

Fault Message: Sensor supply voltage 1 high

Description: ECM 5 volt output is above the acceptable limit.

Corrective Action: Illuminate MIL and/or sound audible warning or illuminate secondary warning lamp.

 

1612

Fault Message: Microprocessor failure RTI 1

Description: Internal microprocessor error

 

1613

Fault Message: Microprocessor failure RTI 2

Description: Internal microprocessor error

 

1614

Fault Message: Microprocessor failure RTI 3

Description: Internal microprocessor error

 

1615

Fault Message: Microprocessor failure A/D

Description: Internal microprocessor error

 

1616

Fault Message: Microprocessor failure Interrupt

 

Description: Internal microprocessor error

1652

Fault Message: TPS1 loss of communications

Description: ECM is expecting to receive throttle position information from the throttle actuator and is not.

Corrective Action: Illuminate MIL and/or sound audible warning or illuminate secondary warning lamp. Shut down engine.

 

2111

Fault Message: Unable to reach lower TPS

Description: Throttle command is 20% less than throttle position for 200ms or longer.

Corrective Action: Engine shut down

 

2112

Fault Message: Unable to reach higher TPS

Description: Throttle command is 20% more than actual throttle position.

Corrective Action: Engine shut down

 

9999

Fault Message: TPS1 failsafe spring failure

Description: When the key is off, the ECM is expecting the failsafe spring in the actuator to return the throttle position to near 0%.

Corrective Action: Illuminate MIL and/or sound audible warning or illuminate secondary warning lamp. Govern the engine speed to a forced idle speed.

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