Massey Ferguson 1188.07 – ECU: Turbo Waste Gate Actuator Motor Issue

This indicates a problem with the electronic motor that controls the turbocharger's wastegate, which regulates exhaust gas flow and boost pressure. The system has detected that the actuator motor is either failing to respond, drawing incorrect current, or experiencing a circuit fault.

• 4710
• 7724S
• 5712SL
• 7722S
• 7722
• 5713SL
• 7720S
• 7716
• 7718
• T4
• 7715
• 5710SL
• 7726
• 4708
• 7726S
• 4707
• 4709
• 5711SL
• 7718S
• 7719
• 7714
• 7716S
• T4 (2015-2021)
• 7720
• Tier 4 (2015-2021)
• 7715S
• 7724
• 4700 Series
• 5600 Series
• 5700SL Series
• 7600 Series
• 7700 Series
• 5400 Series
• 6400 Series
• 7400 Series

1. 1

   Inspect the engine wiring loom leading to the turbo wastegate actuator for chafing, heat damage, or broken wires

2. 2

   Disconnect the plug at the electronic wastegate actuator and check for water ingress, corrosion, or pushed-back pins

3. 3

   With the engine off and cool, check the mechanical linkage rod between the actuator and the wastegate valve on the turbo to ensure it moves freely and is not seized by carbon buildup or rust

4. 4

   Use a compatible diagnostic tool to clear the code and run an active test on the wastegate actuator to see if the motor responds to ECU commands

1. 1

   Preparation

   Turn off the tractor, remove the key, and disconnect the negative battery terminal. Allow the engine and exhaust components to cool completely.

2. 2

   Access the Turbocharger

   Locate the turbocharger on the exhaust manifold side of the engine. The electronic wastegate actuator is mounted directly to or near the turbo compressor housing.

3. 3

   Disconnect Electricals

   Unplug the electrical connector from the wastegate actuator motor.

4. 4

   Remove Linkage

   Carefully remove the retaining clip (e-clip or c-clip) that secures the actuator rod to the wastegate valve arm. Slide the rod off the arm.

5. 5

   Unbolt Actuator

   Remove the mounting bolts securing the actuator bracket to the turbocharger. Remove the faulty actuator.

6. 6

   Install New Part

   Mount the new actuator and tighten the bolts to OEM torque specs. Reattach the actuator rod to the wastegate valve arm and secure it with a new retaining clip.

7. 7

   Reconnect

   Plug the electrical connector back in and reconnect the battery.

8. 8

   Calibration/Testing

   Connect a diagnostic tool to clear the 001188.07 fault code. Some electronic actuators require a relearn or calibration procedure via the diagnostic tool so the ECU knows the new end-stops of the motor. Start the engine and test under load to ensure proper boost pressure and that the code does not return.