Case IH 5099 – PTO Control System / Armrest Controller: Rear PTO management option not enabled

The tractor's electronic system is receiving an input or request to use the Auto PTO / Rear PTO management feature, but this specific option has not been unlocked, calibrated, or enabled in the tractor's control module software.

• Puma/Mid Range Magnum
• Maxxum
• Puma
• Magnum

1. 1

   Verify machine configuration on the AFS Pro display or Intelliview monitor to confirm if the Auto PTO management feature was purchased and should be active.

2. 2

   Inspect the Rear PTO management switch in the cab for shorts (a switch shorted closed may send a continuous request to the module).

3. 3

   Inspect the rear fender PTO switches for damage, moisture intrusion, or wiring shorts tied to the PTO management circuit.

1. 1

   Clear the Code

   If the operator accidentally pressed the Auto PTO button on a machine not equipped with the software option, simply cycle the key and clear the code using the tractor's diagnostic menu.

2. 2

   Software Enablement (Dealer Level)

   If the tractor is supposed to have Rear PTO Management, a technician must connect the CNH Electronic Service Tool (EST) laptop to the tractor's diagnostic port.

3. 3

   Navigate to configuration menu

   Navigate to the Armrest/PTO controller configuration menu.

4. 4

   Enable setting

   Change the 'Rear PTO Management' or 'Auto PTO' setting from Disabled to Enabled.

5. 5

   Save and cycle key

   Save the configuration and perform a key cycle.

6. 6

   Hardware Replacement

   If the configuration is correct but the code persists alongside switch errors (like 5042), remove the armrest console panel, disconnect the Rear PTO Management Switch, and test it for continuity. If it fails to open/close properly, replace the switch.