Description:

This diagnostic trouble code is generated when the PTA control software detects that the voltage at the transmission enable signal is too high. This indicates a short to a positive lead in the circuit of the transmission enable signal.

Reaction:

Limited or no function of the transmission until the error is corrected, indicating a significant issue with the transmission enable signal circuit.

Recommendations:

Inspect Transmission Enable Circuit:

• Check the circuit for any short circuits to positive leads.
• Repair any identified issues in the circuit.

Test Transmission Enable Relay:

• Verify the relay’s voltage output using a multimeter.
• Replace the relay if it is producing abnormally high voltage readings.

Examine Wiring and Connectors:

• Inspect all wiring and connectors associated with the transmission enable signal for signs of damage or corrosion.
• Repair or replace as necessary to ensure proper electrical connections.

Ensure Proper Grounding:

• Verify that the transmission enable circuit is properly grounded.
• Correct any grounding issues that may be causing voltage irregularities.

Note:

High voltage readings from the transmission enable signal can lead to severe operational problems. Regular inspection and maintenance of the signal circuit are essential to prevent these issues.