John Deere 190.17 – PTR: Engine Speed Data Valid but Below Normal Operating Range - Least Severe Level
Issue description
The control module is receiving a valid engine speed (RPM) signal over the CAN BUS from the Engine Control Unit (ECU), but the RPM has dropped below the minimum threshold required for the current operation. This code is most frequently triggered when a technician or operator is attempting to run a calibration routine and the engine throttle is not set high enough.
Applies to these machines
31 machines- 6110M
- 6120M
- 6130M
- 6145M
- 6155M
- 6175M
- 6195M
- 6110R
- 6120R
- 6130R
- 6145R
- 6155R
- 6175R
- 6195R
- 6215R
- 4044M
- 4044R
- 4052M
- 4052R
- 4066M
- 4066R
- 5045E
- 5055E
- 5075E
- 5085M
- 5100M
- 5115M
- 5225
- 5425
- 8245R
- 8400R
Check the cause
Verify Calibration Requirements: If running a transmission, hitch, or cab suspension calibration, check the service manual for the required engine RPM.
Check Engine Idle Speed: Ensure the tractor's base low idle is not dropping below the factory specification (typically around 800-850 RPM depending on the model).
Inspect CAN BUS Communication: Check for accompanying CAN BUS codes (e.g., 002000.09 or 000639.14) which would indicate a communication loss rather than an actual low RPM.
Check Battery/Charging Voltage: Low system voltage can cause modules to misinterpret sensor data or drop CAN messages.
Repair steps
Clear and Retest
Cycle the ignition key off and back on. Many times, this code can be cleared simply by restarting the tractor.
Adjust Throttle During Calibration
If the code appeared during a diagnostic test or calibration, increase the hand throttle to the specified engine speed (often high idle) and repeat the calibration routine.
Test the Engine Speed Sensor (Crankshaft Position Sensor)
If the code occurs during normal driving and the engine is actually running at the correct speed, locate the engine speed sensor on the engine block. Check the sensor for physical damage, metal debris on the magnetic tip, or a loose mounting bolt. Disconnect the sensor and check the wiring harness for chafing, corrosion, or moisture in the connector.
Verify CAN Wiring to the Rear Chassis
Inspect the wiring harness running from the Engine ECU to the Rear Chassis (PTR) module. Look for pinch points or damaged pins at the PTR connector.
Software Update
If no physical faults are found, connect John Deere Service ADVISOR. Check if there is a software update for the PTR or Engine ECU that addresses overly sensitive RPM monitoring.
Parts you might need
(6)Engine Speed Sensor (Crankshaft Position Sensor)
RE519144Varies heavily by engine model. Always verify against the specific engine serial number.
Engine Speed Sensor (Crankshaft Position Sensor)
DZ108384Varies heavily by engine model. Always verify against the specific engine serial number.
Rear Chassis Controller Unit / PTR Module
RE322680Varies by chassis. Only replace if the module has an internal failure and fails to communicate entirely. Requires programming via Service ADVISOR upon installation.
Rear Chassis Controller Unit / PTR Module
RE322681Varies by chassis. Only replace if the module has an internal failure and fails to communicate entirely. Requires programming via Service ADVISOR upon installation.
CAN BUS terminating resistors
Generic part
Replacement connector pigtails
Generic part, if corrosion is found at the sensor
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