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PowerShift Control Unit (PTP) Diagnostic
Trouble Codes
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Diagnostic Trouble Code
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Display
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Solution
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PTP 84.7
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Transmission system not calibrated
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Calibration fault. Return to Neutral or Park to attempt vehicle
recovery.
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PTP 127.1
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Transmission oil pressure low
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Transmission oil pressure extremely low. Return to Park to attempt
vehicle recovery.
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PTP 84.18
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Transmission system
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Engine off with transmission in gear. Return to Neutral or Park.
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PTP 92.16
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Transmission System
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Excessive load in reverse. Reduce engine load or downshift.
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PTP 123.3
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Transmission electrical
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Clutch pressure sensor circuit voltage high. Return to Park
to attempt vehicle recovery.
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PTP 123.4
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Transmission electrical
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Clutch pressure sensor circuit voltage low.
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PTP 123.18
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Clutch Partially Engaged
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Transmission clutch slip high. Return to Neutral or Park to
attempt vehicle recovery.
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PTP 158.1
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Transmission System
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Transmission control unit supply voltage low. Return vehicle
to Neutral or Park. Reduce electrical load or increase engine RPM
to attempt vehicle recovery.
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PTP 168.3
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Electrical system voltage high
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Transmission control unit supply voltage high. Return vehicle
to Neutral or Park to attempt vehicle recovery.
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PTP 168.4
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Electrical system voltage low
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Transmission control unit supply voltage low. Return vehicle
to Neutral or Park to attempt vehicle recovery.
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PTP 177.17
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Transmission oil temperature low
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Top gear limited due to low transmission temperature.
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PTP 190.18
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Engine speed not compatible
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Engine speed too low for transmission lubrication. Increase
engine RPM or decrease wheel speed.
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PTP 598.2
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Transmission electrical
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Clutch pressure switch circuit fault.
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PTP 628.12
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Transmission system disabled
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Transmission control unit programming in progress.
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PTP 629.12
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Transmission system disabled
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Transmission control unit fault. Restart engine to attempt vehicle
recovery.
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PTP 630.14
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Transmission system not calibrated
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Calibration fault.
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PTP 2000.9
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Transmission system
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Engine control unit communication fault.
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PTP 2005.9
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Transmission system
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Armrest control unit communication fault.
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PTP 2020.9
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Transmission system
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Suspension control unit communication fault.
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PTP 2021.9
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Transmission system
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RSC communication fault.
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PTP 619.5
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Park electrical
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Park brake solenoid circuit fault. Return to Park to attempt
vehicle recovery.
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PTP 628.2
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Transmission system disabled
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Transmission control unit fault.
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PTP 630.2
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Transmission system not calibrated
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Calibration fault.
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PTP 734.5
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Transmission system inoperable
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Clutch solenoid circuit fault. Restart engine to attempt vehicle
recovery.
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PTP 735.5
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Transmission system inoperable
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Clutch solenoid circuit fault. Restart engine to attempt vehicle
recovery.
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PTP 736.5
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Transmission system inoperable
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Reverse Brake solenoid circuit fault. Restart engine to attempt
vehicle recovery.
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PTP 737.5
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Transmission system inoperable
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Clutch solenoid circuit fault. Restart engine to attempt vehicle
recovery.
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PTP 738.5
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Transmission system inoperable
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Clutch solenoid circuit fault. Restart engine to attempt vehicle
recovery.
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PTP 739.5
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Transmission system inoperable
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Clutch solenoid circuit fault. Restart engine to attempt vehicle
recovery.
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PTP 810.2
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Transmission speed
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Countershaft speed sensor fault. Return to Neutral or Park to
attempt vehicle recovery.
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PTP 523953.2
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Transmission lever
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Speed control lever circuit fault. Return to Neutral or Park
to attempt vehicle recovery.
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PTP 523960.31
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Operator not in seat
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Operator out of seat. Return to seated position.
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PTP 524020.31
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Transmission lever not in neutral
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Return to Neutral or Park to attempt vehicle recovery.
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PTP 524228.5
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Park electrical
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Park sump block solenoid circuit fault.
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PTP 524228.11
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Park system
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Park sump block valve fault.
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PTP 524232.16
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Park system
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Park brake pressure high. Return to Park to attempt vehicle
recovery.
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PTP 524248.31
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Park system
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Motion detected while vehicle in Park. Stop vehicle and cycle
gear selector.
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PTP 524267.16
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Clutch Partially Engaged
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Transmission clutch slipping. Return to Neutral or Park to attempt
vehicle recovery.
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PTP 524267.31
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Clutch Partially Engaged
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Transmission clutch slipping. Return to Neutral or Park to attempt
vehicle recovery.
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PTP 524277.0
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Engine Overspeed
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Reduce engine RPM before performing downshift.
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PTP 524279.31
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Operator not in seat
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Operator out of seat. Return to seated position.
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PTP 524280.31
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Park system
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Motion detected while Park engaged.
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PTP 524232.3
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Park electrical
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Park brake pressure sensor voltage high.
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PTP 524232.4
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Park electrical
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Park brake pressure sensor voltage low.
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PTP 524232.17
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Park system
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Park brake pressure low. Return to Park to attempt vehicle recovery.
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PTP 524239.31
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Transmission system
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Tractor not moving while in gear with engine running. Return
to Neutral or Park to attempt vehicle recovery.
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PTP 524250.31
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Park system
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Park brake fault.
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PTP 524267.15
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Clutch Partially Engaged
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Transmission clutch slipping. Return to Neutral or Park to attempt
vehicle recovery.
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PTP 524271.5
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Transmission system inoperable
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Transmission clutch circuit fault. Return to Neutral or Park
to attempt vehicle recovery.
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PTP 524272.5
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Transmission system inoperable
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Transmission clutch circuit fault. Return to Neutral or Park
to attempt vehicle recovery.
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PTP 524273.5
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Transmission system inoperable
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Transmission clutch circuit fault. Return to Neutral or Park
to attempt vehicle recovery.
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PTP 600006.31
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Transmission System
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Vehicle controls not operating correctly.
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