Allison Transmission shift selector Operation Manual
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Allison Transmission shift selector Operation Manual

5th generation oil level information, diagnostic codes and prognostic features for 3000/4000 series and tc10 allison transmissions
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OPERATION
+ CODE MANUAL
SHIFT SELECTOR
OIL LEVEL INFORMATION, DIAGNOSTIC CODES AND PROGNOSTIC FEATURES
FOR 3000/4000 SERIES
AND TC10
ALLISON TRANSMISSIONS
™
™

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Do you have a question about the shift selector and is the answer not in the manual?

Questions and answers

Glenn Baggett
May 23, 2025

When I turn the key on both N’s on the 29551496 selector comes on but when I crank the truck the N on the left side goes off. Any suggestions?

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1 comments:
Mr. Anderson
May 25, 2025

The left N indicator could turn off when cranking the truck due to a temporary voltage drop during engine cranking that affects the shift selector display. This behavior is not necessarily abnormal and may occur during the engine start process. If the indicator does not return after cranking or other symptoms appear, further diagnostics may be needed.

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Summary of Contents for Allison Transmission shift selector

  • Page 1 OPERATION + CODE MANUAL SHIFT SELECTOR OIL LEVEL INFORMATION, DIAGNOSTIC CODES AND PROGNOSTIC FEATURES FOR 3000/4000 SERIES AND TC10 ALLISON TRANSMISSIONS ™ ™...

  • Page 2: Table Of Contents

    Table of Contents General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Basic Operation .

  • Page 3: General Information

    . Through readouts on your shift selector, you will be able to monitor transmission oil levels, read diagnostic codes and prognostic information . This manual will help you understand shift selector readouts and enjoy long, trouble-free operation of your Allison Automatic .

  • Page 4: Basic Operation

    5th Generation Electronic Controls Shift Selectors As the world leader in medium- and heavy-duty commercial transmissions, Allison Transmission continues its ongoing improvement initiative with the introduction of 5th Generation Electronic Controls Shift Selectors . All 5th Generation Electronic Controls Shift Selectors feature easy-to-read graphic displays that show both text and symbols .

  • Page 5: Section 1 - With Prognostics + With Oil Level Sensor

    1 . Park the vehicle on a level surface, shift to N (NEUTRAL) and apply the parking brake . 2 . Using a pushbutton shift selector, simultaneously press the UP and DOWN arrows one time . For a bump lever shift selector, press the DIAGNOSTICS button one time .

  • Page 6: Prognostic Features

    4 . The shift selector displays the oil level data as follows: • CORRECT FLUID LEVEL – The fluid is within the correct fluid level zone when OK is shown . • LOW FLUID LEVEL – The display shows the number of quarts the transmission oil is low .

  • Page 7: Accessing Prognostics

    The status of transmission health is displayed as OK or LO . Accessing Prognostics When you are alerted via the WRENCH ICON on the shift selector that service is due, you can check the status by toggling through the shift selector display as follows .

  • Page 8: Resetting Prognostics

    MODE button for approximately 10 seconds while in Filter Life Monitor mode . For either a pushbutton or bump lever shift selector, perform the following shift sequence with the ignition on, but the engine off . Do not stop the sequence for more than three seconds once you have started .

  • Page 9: Diagnostics Codes

    To exit the diagnostic code function: Any of the following methods may be used . 1 . For a pushbutton shift selector, press the N (NEUTRAL) range button . 2 . For a bump lever shift selector, press the DIAGNOSTICS range button until back to range display .

  • Page 10: Section 2 - With Prognostics + Without Oil Level Sensor

    SECTION 2 WITH PROGNOSTICS + WITHOUT OIL LEVEL SENSOR Prognostic Features 5th Generation Electronic Controls Shift Selectors display prognostics in text form to provide at-a-glance status of Oil Life, Filter Life and Transmission Health . PUSHBUTTON The WRENCH ICON will illuminate briefly after you turn the key to the run position on your Allison-equipped vehicle to indicate that prognostics are enabled .

  • Page 11: Accessing Prognostics

    Accessing Prognostics When you are alerted via the WRENCH ICON on the shift selector that service is due, you can check the status by toggling through the shift selector display as follows . Be sure to park the vehicle on a level surface, shift to N (NEUTRAL) and apply the parking brake before accessing prognostics through the shift selector.

  • Page 12: Resetting Prognostics

    MODE button for approximately 10 seconds while in Filter Life Monitor mode . For either a pushbutton or bump lever shift selector, perform the following shift sequence with the ignition on, but the engine off . Do not stop the sequence for more than three seconds once you have started .

  • Page 13: Diagnostics Codes

    To exit the diagnostic code function: Any of the following methods may be used . 1 . For a pushbutton shift selector, press the N (NEUTRAL) range button . 2 . For a bump lever shift selector, press the DIAGNOSTICS range button until back to range display .

  • Page 14: Section 3 - Without Prognostics + With Oil Level Sensor

    1 . Park the vehicle on a level surface, shift to N (NEUTRAL) and apply the parking brake . 2 . Using a pushbutton shift selector, simultaneously press the UP and DOWN arrows one time . For a bump lever shift selector, press the DIAGNOSTICS button one time .
  • Page 15 4 . The shift selector displays the oil level data as follows: • CORRECT FLUID LEVEL – The fluid is within the correct fluid level zone when OK is shown . • LOW FLUID LEVEL – The display shows the number of quarts the transmission oil is low .

  • Page 16: Diagnostics Codes

    To exit the diagnostic code function: Any of the following methods may be used . 1 . For a pushbutton shift selector, press the N (NEUTRAL) range button . 2 . For a bump lever shift selector, press the DIAGNOSTICS range button until back to range display .

  • Page 17: Section 4 - Without Prognostics + Without Oil Level Sensor

    To enter the diagnostic code function: 1 . Bring the vehicle to a complete stop . Apply the parking brake . 2 . For a pushbutton shift selector, simultaneously press the UP and DOWN arrows one time . For a bump lever shift selector, press the DIAGNOSTICS button one time .
  • Page 18 To exit the diagnostic code function: Any of the following methods may be used . 1 . For a pushbutton shift selector, press the N (NEUTRAL) range button . 2 . For a bump lever shift selector, press the DIAGNOSTICS range button until back to range display .
  • Page 19 Diagnostic Transmission Codes DIAGNOSTIC CODE CODE DESCRIPTION P0122 PEDAL POSITION SENSOR CIRCUIT LOW VOLTAGE P0123 PEDAL POSITION SENSOR CIRCUIT HIGH VOLTAGE P0218 TRANSMISSION FLUID OVER TEMPERATURE CONDITION P0562 SYSTEM VOLTAGE LOW P057C BRAKE PEDAL POSITION SENSOR LOW P057D BRAKE PEDAL POSITION SENSOR HIGH P0602 TCM NOT PROGRAMMED P0603...
  • Page 20 DIAGNOSTIC CODE CODE DESCRIPTION P0796 PRESSURE CONTROL SOLENOID (PCS) 3 STUCK OFF P0797 PRESSURE CONTROL SOLENOID (PCS) 3 STUCK ON P07D9 INCORRECT 8TH GEAR RATIO P07F6 INCORRECT 9TH GEAR RATIO P07F7 INCORRECT 10TH GEAR RATIO P081B CRANK ENABLE CIRCUIT HIGH P0837 FOUR WHEEL DRIVE (4WD) SWITCH CIRCUIT RANGE/PERFORMANCE P083C...
  • Page 21 DIAGNOSTIC CODE CODE DESCRIPTION P0994 TRANSMISSION FLUID PRESSURE SWITCH 5 CIRCUIT LOW P0995 TRANSMISSION FLUID PRESSURE SWITCH 5 CIRCUIT HIGH P0995 TRANSMISSION FLUID PRESSURE SWITCH 5 CIRCUIT HIGH P0A0B HIGH VOLTAGE INTERLOCK LOOP 1 INVALID P0A2F DRIVE MOTOR OVER TEMPERATURE P0A44 DRIVE MOTOR OVERSPEED P0A7D...
  • Page 22 DIAGNOSTIC CODE CODE DESCRIPTION P2641 TORQUE MANAGEMENT FEEDBACK SIGNAL B P2669 ACTUATOR SUPPLY CIRCUIT VOLTAGE 2 OPEN (HSD 2) P2670 ACTUATOR SUPPLY CIRCUIT VOLTAGE 2 LOW (HSD 2) P2671 ACTUATOR SUPPLY CIRCUIT VOLTAGE 2 HIGH (HSD 2) P2684 ACTUATOR SUPPLY CIRCUIT VOLTAGE 3 OPEN (HSD 3) P2685 ACTUATOR SUPPLY CIRCUIT VOLTAGE 3 LOW (HSD 3) P2686...
  • Page 23 DIAGNOSTIC CODE CODE DESCRIPTION P281D PRESSURE CONTROL SOLENOID (PCS) 7 CONTROL CIRCUIT LOW P281E PRESSURE CONTROL SOLENOID (PCS) 7 CONTROL CIRCUIT HIGH P2824 PRESSURE CONTROL SOLENOID (PCS) 8 CONTROL CIRCUIT OPEN P2826 PRESSURE CONTROL SOLENOID (PCS) 8 CONTROL CIRCUIT LOW P2827 PRESSURE CONTROL SOLENOID (PCS) 8 CONTROL CIRCUIT HIGH P2832...
  • Page 24 To order an Operator’s Manual, go to allisontransmission.com or call toll free 888-666-5799 . One Allison Way SA7497EN (2014/10) Indianapolis, Indiana, USA 46222-3271 ISO/QS 9000 and ISO 14001 Certified Information or specifications subject to © 2014 Allison Transmission Inc. change without notice or obligation. All rights reserved. allisontransmission.com...

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