John Deere PL1 codes
This informational code is generated when the park lock is engaged at a travel speed of more than 0.5 km/h. This can also occur if the park lock is engaged while the vehicle is in motion.
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PL1 codes
John Deere PL1 Fault Codes / John Deere PL1 Diagnostic Trouble Codes / John Deere PL1 Error Codes
John Deere PL1 fault codes are essential for diagnosing issues within the primary level of the power line communication systems. These error codes are crucial for identifying problems in the primary segment, which is responsible for the foundational communication between the vehicle’s key systems. Failures in this segment can disrupt basic operational commands and responses, potentially leading to system-wide malfunctions.
PL1 Error Codes / PL1 Fault Codes
The PL1 control software is a vital component used for activating the park lock solenoid 1 in DirectDrive transmissions. It is integrated into the control unit for gear shifting, playing a critical role in the engagement and disengagement of the park lock. The PL1, along with PL2, PL3, and PL4 control software, monitors and controls various parameters to ensure proper functionality.
Key Functions Monitored by PL1 Control Software
- Come-home connector position
- Reverse drive lever position
- Engine speed
- Vehicle speed
- Status of park lock solenoid 1 (DirectDrive transmission)
- Status of park lock solenoid 2 (DirectDrive transmission)
In come-home mode, additional signals are required:
- Position of clutch pedal potentiometer
- Supply voltage (ELX)
Common John Deere PL1 Fault Codes
PL1 000158.03 – Supply Voltage (ELX) Too High
Indicates the control software registers a supply voltage of more than 16 V. This can result from overcharging or voltage regulator issues.
PL1 000158.04 – Supply Voltage (ELX) Too Low
Triggered when the supply voltage is less than 9 V. Common causes include battery issues or alternator problems.
PL1 000237.02 – VIN Information Mismatch
Generated when the VIN from other control units does not match, leading to limited vehicle functionality.
PL1 000629.06 – Control Unit, Current Too High
Detected when the current in the control unit for gear shifting is too high, often indicating a short circuit.
PL1 002071.09 – Incorrect CAN Bus Message from CCU Control Software
Caused by data transfer problems between the CCU and PL1 control software, indicating CAN Bus or transmitting control software issues.
Importance of Addressing PL1 Fault Codes
Prompt identification and resolution of John Deere PL1 diagnostic trouble codes are crucial for maintaining vehicle functionality and preventing potential system-wide failures. Regular maintenance, software updates, and thorough inspections are essential for ensuring the reliability and efficiency of the power line communication systems.
By understanding and addressing these error codes, operators can ensure smoother operations, minimize downtime, and enhance the overall performance of their John Deere equipment.
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John Deere fault codes:
ACU codes AIC codes ASU codes ATC codes BCU codes BIF codes BRC codes CAB codes CCU codes CLC codes CRU codes CSC codes CSM codes DSM codes DTI codes ECU codes EPC codes ETC codes FCC codes GPM codes HCC codes HV1 codes ICC codes JDL codes OIC codes PDU codes PL1 codes PL3 codes PLC codes PTA codes PTD codes PTF codes PTH codes PTI codes PTP codes PTQ codes PTR codes RLC codes RPM codes RPT codes