Pinpoint Test AF: U0126:87

WARNING: This page is about a different car, the 2010 Mercury Milan, 2010 Lincoln MKZ, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: If new modules were installed prior to the DTC being set, the module configuration may be incorrectly set during the Programmable Module Installation (PMI) or the PMI may not have been carried out.

AF1 VERIFY THE CUSTOMER CONCERN
- Ignition ON.
- Verify that there is an observable symptom present.
- Is an observable symptom present?
- Yes: GO to AF2.
- No: The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.
AF2 CHECK THE COMMUNICATION NETWORK
- Enter the following diagnostic mode on the scan tool: Network Test.
- Carry out the network test.
- Does the PSCM pass the network test?
- Yes: GO to AF3.
- No: REFER to MODULE COMMUNICATIONS NETWORK .
AF3 RETRIEVE THE RECORDED DTCs FROM THE HCM SELF-TEST
- Check for recorded DTCs from the HCM self-test.
- Is DTC U3003:16 or DTC U3003:17 recorded?
- Yes: For DTC U3003:16, Go To PINPOINT TEST AH .
  For DTC U3003:17, Go To PINPOINT TEST AI .
- No: GO to AF4.
AF4 RECHECK THE HCM DTCs
- Enter the following diagnostic mode on the scan tool: HCM Self-Test.
- Clear the DTCs. Repeat the HCM self-test.
- Is DTC U0126:87 still present?
- Yes: INSTALL a new steering gear. REFER to INSTALLATION (3.5L Front Wheel Drive (FWD)), INSTALLATION (3.5L All Wheel Drive (AWD)), INSTALLATION (2.5L Hybrid and 3.0L All Wheel Drive (AWD)) and REMOVAL AND INSTALLATION (2.5L Non-Hybrid and 3.0L Front Wheel Drive (FWD)) . CLEAR the DTCs. REPEAT the self-test.
  If DTC U0126:87 is still present, INSTALL a new HCM. REFER to Removal and Installation . TEST the system for normal operation.
- No: The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.