Pinpoint Test K : U0155:87
WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
- K1 CHECK THE COMMUNICATION NETWORK
- Ignition ON.
- Using a scan tool, carry out the Network Test.
Does the IPC pass the Network Test?
Yes GO to K2. No DIAGNOSE the IPC does not respond to the scan tool, REFER to Diagnosis and Testing in Module Configuration . - K2 CHECK THE VDM CMDTCs
- Using a diagnostic scan tool, carry out the VDM self-test.
- Clear the DTCs.
- Ignition OFF.
- Ignition ON.
- Using a diagnostic scan tool, carry out the VDM self-test.
- Record the VDM DTCs.
Is DTC U0155:87 retrieved again?
Yes GO to K3. 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. - K3 REVIEW THE RECORDED DTCs FROM THE VDM SELF-TEST
- Review the recorded DTCs from the VDM self-test.
Is DTC U3003:16 or U3003:17 recorded?
Yes For DTC U3003:16, GO to Pinpoint Test A .For DTC U3003:17, GO to Pinpoint Test B . No GO to K4. - K4 CHECK FOR DTCs IN THE IPC
- Using a diagnostic scan tool, carry out the IPC self-test.
Is DTC U3003:16 or U3003:17 present?
Yes DIAGNOSE the IPC DTCs. REFER to Diagnosis and Testing in Instrumentation, Message Center, and Warning Chimes . No GO to K5. - K5 CHECK FOR DTC U0155 OR U0155:XX SET IN OTHER MODULES
- Using a diagnostic scan tool, carry out the self-test for all modules.
- Retrieve the CMDTCs from all modules.
Is DTC U0155 or U0155:xx set in 1 or more modules in addition to the VDM ?
Yes CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no TSBs address this concern, No CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no TSBs address this concern, INSTALL a new VDM. REFER to Vehicle Dynamics Module (VDM) .