Variant 1
Applies to: EMD0
What does Scania EMD fault code 1592 mean?
Throttle cannot reach the requested position.
What causes Scania DTC 1592?
For vehicles with pneumatic throttle: - Freezing. - Throttle stuck or moving very slowly. - Insufficient air supply to the cylinder. - Faulty valve block V107. For vehicles with electric throttle M42: - High friction. - Blocked throttle blade. - Internal mechanical fault. - Internal electrical fault.
How to fix Scania EMD fault code 1592?
- For vehicles with pneumatic throttle:
- Thaw the vehicle.
- Check if the throttle has limited movement.
- Check for air leaks in the cylinder, valve block V107 or air hoses.
- Check valve block V107.
- For vehicles with electric throttle M42: Run Functional inspection of the electric throttle.
- Warning!
- This must only be done with no power on the throttle, i.e. with the switch removed.
- Otherwise there is risk of injury.
- Inspect and clean the throttle housing internally.
- For an active or frequent fault code, renew the throttle.
Variant 2
Applies to: EMD1
Detection
Throttle cannot reach the requested position.
Possible cause
- High friction. - Blocked throttle blade. - Internal mechanical fault. - Internal electrical fault.
How to fix
- Run Functions > Check > Powertrain > Functional inspection of the electric throttle.
- Warning!
- This must only be done with no power on the throttle, i.e. with the switch removed.
- Otherwise there is risk of injury.
- Inspect and clean the throttle housing internally.
- For an active or frequent fault code, renew the throttle.
This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.