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TIA codes

Comprehensive Guide to John Deere TIA Fault Codes

John Deere TIA fault codes (also known as TIA diagnostic trouble codes or TIA error codes) are essential for diagnosing issues in vehicles equipped with AutoPowr™/IVT™ transmissions. These codes are generated by the TIA control software, which is integrated into the Cab Control Unit and works in conjunction with the PTA control software to manage the transmission system. The TIA control software receives signals through the vehicle CAN bus (500 kBd) and processes these signals to ensure proper transmission operation.

Common John Deere TIA Fault Codes

1. TIA 000091.02 – Accelerator Pedal Potentiometer, Voltages at Channel 1 and Channel 2 Not in the Correct Ratio

Occurrence: Detected when there is a voltage mismatch between channel 1 and channel 2 of the accelerator pedal potentiometer.
Impact: Limited or no function of the accelerator pedal potentiometer.

2. TIA 000190.01 – Engine Speed Too Low

Occurrence: Generated if the engine speed is too low, shifting the transmission into neutral to prevent stalling.
Impact: Transmission shifted to neutral until engine speed increases.

3. TIA 000237.14 – VIN Information, System De-Activated

Occurrence: Triggered if the VIN security function was not enabled due to an internal problem, indicating incorrect reprogramming of the control software.
Impact: Limited vehicle function due to deactivated VIN security.

4. TIA 000606.16 – Engine Speed Too High

Occurrence: Detected when the engine speed is excessively high, requiring a reduction in speed.
Impact: Limited or no function of the control software to prevent potential damage from high engine speeds.

5. TIA 002003.07 – Incorrect CAN BUS Message, Engine Speed and Transmission Input Speed

Occurrence: Generated when there is a deviation of more than 100 rpm between engine speed and transmission input speed for over 5 seconds.
Impact: Limited or no function of the control software due to speed discrepancies.

Where These Codes Occur

These fault codes are typically encountered in the transmission system of John Deere vehicles with AutoPowr™/IVT™ transmissions. The TIA control software monitors various signals, including:

Position of the reverse drive lever (LHR)
Position of the speed control lever
Travel speed
Tire size
Speed and torque requests

The TIA control software then communicates this information to the transmission enable relay and the PTA control software to ensure smooth operation and to diagnose any issues effectively.

Understanding and addressing these John Deere TIA error codes promptly can help maintain the performance and longevity of your vehicle’s transmission system. For more detailed diagnostics and solutions, always refer to the vehicle’s service manual or consult with a certified John Deere technician.

TIA 524264.02 – Control Software Internal Fault

John Deere TIA codes

This diagnostic trouble code (DTC) is generated when an electronic malfunction is registered in the control software. This indicates a potential issue within the software itself.
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TIA 524254.02 – Transmission Enable Relay, Fault

John Deere TIA codes

This diagnostic trouble code (DTC) is generated when the control software detects a problem in the circuit of the transmission enable relay. This could indicate a defective relay, a problem with the ground circuit, or an issue with the control…
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TIA 524254.31 – INFORMATION FOR OPERATOR: Transmission Warm-up Routine Cannot be Activated, Park Lock Must be Engaged

John Deere TIA codes

This operator information (DTC) is generated when the PTA control software detects that the transmission oil temperature is too cold for operation. However, the transmission’s warm-up routine cannot be activated until the reverse drive lever has been moved to its…
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TIA 524193.14 – INFORMATION FOR OPERATOR: Transmission Warm-up Routine Active

John Deere TIA codes

This operator information (DTC) is generated when the PTA control software detects that the transmission oil temperature is too cold for operation. The transmission oil temperature needs to be increased before normal operation can resume.
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TIA 524190.14 – INFORMATION FOR OPERATOR: Anti-Jack-Knife Control Activated

John Deere TIA codes

This operator information (DTC) is generated when the TIA control software activates the anti-jack-knife control in response to a change in the ratio of the front and rear axle operating speeds (with front-wheel drive disengaged). This feature is designed to…
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TIA 524188.01 – Control Software Internal Fault

John Deere TIA codes

This diagnostic trouble code (DTC) is generated when the control software internally detects that too much time has elapsed, indicating a potential timing or performance issue within the software.
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TIA 524180.31 – INFORMATION FOR OPERATOR: Tractor in Come-Home Mode, Release Clutch Pedal

John Deere TIA codes

This operator information (DTC) is generated when the come-home mode is activated (connector for come-home feature in COME HOME position). It informs the operator that they should release the clutch pedal to gain access to the next stage of the…
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TIA 524180.14 – INFORMATION FOR OPERATOR: Tractor in Come-Home Mode, Depress the Clutch Pedal Fully

John Deere TIA codes

This operator information (DTC) is generated when the come-home mode is activated (connector for come-home feature in COME HOME position). It informs the operator that they should depress the clutch pedal fully to gain access to the next stage of…
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TIA 524180.07 – INFORMATION FOR OPERATOR: Tractor in Come-Home Mode, Press the Clutch Pedal to Stop

John Deere TIA codes

This operator information (DTC) is generated when the come-home mode is activated (connector for come-home feature in COME HOME position). It informs the operator that they should depress the clutch pedal if they want to stop the tractor.
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TIA 524173.07 – Clutch Pedal Potentiometer, Adjustment Error

John Deere TIA codes

This diagnostic trouble code (DTC) is generated under the following conditions: If the clutch pedal potentiometer is faulty, and the reverse drive lever is in the forward or reverse position while the clutch pedal is depressed. If the clutch pedal…
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TIA 524173.02 – Clutch Pedal Potentiometer, Voltages at Channel 1 and Channel 2 Not in the Correct Ratio

John Deere TIA codes

This diagnostic trouble code (DTC) is generated when the control software detects a mismatch between the output signals of the clutch pedal potentiometer. Specifically, the voltage at channel 1 must be exactly double the voltage at channel 2.
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John Deere News & Innovations: Equipment, Technology, Solutions

TIA codes

Comprehensive Guide to John Deere TIA Fault Codes

Common John Deere TIA Fault Codes

Where These Codes Occur

TIA 524264.02 – Control Software Internal Fault

TIA 524254.02 – Transmission Enable Relay, Fault

TIA 524254.31 – INFORMATION FOR OPERATOR: Transmission Warm-up Routine Cannot be Activated, Park Lock Must be Engaged

TIA 524193.14 – INFORMATION FOR OPERATOR: Transmission Warm-up Routine Active

TIA 524190.14 – INFORMATION FOR OPERATOR: Anti-Jack-Knife Control Activated

TIA 524188.01 – Control Software Internal Fault

TIA 524180.31 – INFORMATION FOR OPERATOR: Tractor in Come-Home Mode, Release Clutch Pedal

TIA 524180.14 – INFORMATION FOR OPERATOR: Tractor in Come-Home Mode, Depress the Clutch Pedal Fully

TIA 524180.07 – INFORMATION FOR OPERATOR: Tractor in Come-Home Mode, Press the Clutch Pedal to Stop

TIA 524173.07 – Clutch Pedal Potentiometer, Adjustment Error

TIA 524173.02 – Clutch Pedal Potentiometer, Voltages at Channel 1 and Channel 2 Not in the Correct Ratio

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