P1598
Power Take Off Engine Speed Request Signal Message Counter Incorrect
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)
Symptoms
- Check Engine light comes on
- Reduced engine power
- Unstable engine operation
- Problems with PTO activation
- Intermittent operation of additional equipment
Causes
- PTO speed sensor malfunction
- Damaged PTO wiring harness
- Contact corrosion in PTO circuit
- PTO module malfunctions
- ECU software problems
How to Fix
- Check the integrity of the PTO wiring harness
- Clean contacts in PTO connectors
- Check PTO speed sensor
- Test the PTO module
- Update ECU software