Description

Implausible "kickdown active" via CAN and digital input.

Effects on the driving operation

No kickdown active, hence no kickdown shifting points.

Possible causes

Kickdown active was detected while the position of the accelerator pedal is merely smaller than or equal 50 %. Possible causes are:

- Kickdown via digital signal: Short-circuit at connector or pin or sensor defective.

- for CAN signals there may be an implausible value in the CAN message.

Place of action

No description available.

Instruction

Please make sure that both the accelerator pedal and the kickdown switch operate correctly.

For the digital signals, please check connector and cabling.

For CAN signals check the CAN message (for SAE J1939 EEC2,Electronic Engine Controller #2), CAN signal: 'kick down switch' .)

Setting conditions of the event

No description available.

Testing conditions of the event

No description available.

Final function check

If the defective component cannot be clearly identified, you should try to reproduce the fault:

• Reinstall the component in the vehicle.
• Test function.

After the fault has been eliminated, the following steps have to be carried out:

• Conduct a test drive with function check.
• Read the fault memory
• Check transmission for leaks.
• Perform a final visual inspection.

These steps are necessary to ensure the entire vehicle functions correctly.