Pinpoint Test A : DTC U0100:00
WARNING: This page is about a different car, the 2015 Lincoln MKT. However, it is still accessible from the selected car via links, so may be relevant.
- A1 VERIFY THE SCAN TOOL COMMUNICATES WITH THE PCM
- Connect the scan tool.
- Ignition ON.
- Using a scan tool, check that a vehicle session can be established.
Can a vehicle session be established?
Yes GO to A2. No REFER to Module Communications Network , The PCM Does Not Respond To The Scan Tool. - A2 CHECK THE BCM CONTINUOUS MEMORY DTCs
- Using a scan tool, clear the DTCs. Repeat the BCM self-test.
Is DTC U0100:00 retrieved again?
Yes GO to A3. 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. - A3 RETRIEVE THE RECORDED DTCs FROM THE BCM SELF-TEST
- Using a scan tool, perform the BCM self-test.
Is DTC U3003:16 or DTC U3003:17 recorded?
Yes For DTC U3003:16, GO to Pinpoint Test G . For DTC U3003:17, GO to Pinpoint Test H . No GO to A4. - A4 CHECK FOR DTC U0100:00 OR DTC U0100 SET IN OTHER MODULES
- Ignition ON.
- Using a scan tool, retrieve all continuous memory DTCs.
Is DTC U0100:00 or DTC U0100 set in any other module?
Yes INSTALL a new PCM. REFER to Electronic Engine Controls . No INSTALL a new BCM. REFER to Body Control Module (BCM) .