Circuit/System Verification

DTC U3000 44 or U3000 49 

1. Verify that DTC U3000 44 or DTC U3000 49 is not set.
   • If the DTC is set 

     Replace the K43 Power Steering Control Module.

   • Go to next step: If the DTC is not set 
2. All OK.

DTC U3000 4B 

1. Verify that the DTC sets outside the conditions for running and setting. Since most occurrences of this DTC are caused by excessive driver inputs, review with the customer the conditions under which the DTC set.
   • If the DTC did not set outside of the conditions for running and setting 
   1. Ignition ON.
   2. Operate the vehicle within the conditions that the customer experienced, avoiding excessive inputs, and verify the DTC does not reset.
      • If the DTC is set
      1. Verify that no steering components down stream of the power steering column assembly are mechanically binding. Refer to Steering Effort Hard or Too Easy in One or Both Directions 
      • If steering components are mechanically binding, replace the mechanically binding steering components.
      • If no steering components are mechanically binding, replace the K43 Power Steering Control Module.
      • Go to next step: If the DTC is not set
   3. All OK.
   • Go to next step: If the DTC set outside of the conditions for running and setting 
2. All OK. The power steering is operating as designed.

DTC U3000 51 or DTC U3000 54 

1. Ignition ON.
2. Verify DTC U3000 51 or DTC U3000 54 is not set.
   • If DTC U3000 51 or DTC U3000 54 is set 
   1. Program the K43 Power Steering Control Module.
   2. Verify the DTC does not reset.
      • If the DTC resets, replace the K43 Power Steering Control Module.
      • Go to next step: If the DTC does not reset
   3. All OK.
   • Go to next step: If DTC U3000 51 or DTC U3000 54 is not set 
3. All OK.