Pinpoint Test As: DTC U0100:87

WARNING: This page is about a different car, the 2013 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.

AS1 VERIFY THAT THE SCAN TOOL CAN COMMUNICATE WITH THE PCM
- Connect the scan tool.
- Check that a vehicle session can be established using the scan tool.
- Can a vehicle session be established?
- Yes : GO to AS2.
- No : REFER to MODULE COMMUNICATIONS NETWORK to diagnose no communication with the PCM.
AS2 CHECK THE IPC CONTINUOUS MEMORY DTCs
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: IPC Self-Test.
- Clear the DTCs. Repeat the IPC self-test.
- Is DTC U0100:87 retrieved again?
- Yes : GO to AS3.
- 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.
AS3 RETRIEVE THE RECORDED DTCs FROM THE IPC SELF-TEST AND THE PCM KOEO SELF-TEST
- Check for recorded DTCs from the IPC self-test and the PCM Key ON Engine OFF (KOEO) self-test.
- Is DTC U3003:16 or DTC U3003:17 recorded In the IPC or DTC P0562 or P0563 recorded in the PCM?
- Yes : For IPC DTC U3003:16, GO to PINPOINT TEST BB .
  For IPC DTC U3003:17, GO to PINPOINT TEST BC .
  
  For the PCM, REFER to the ENGINE CONTROLS - INTRODUCTION (EXCEPT DIESEL & HYBRID) (SECTION 0) .
- No : GO to AS4.
AS4 CHECK FOR DTC U0100:87 SET IN OTHER MODULES
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self-Test.
- Retrieve the continuous memory DTCs from all modules.
- Is DTC U0100:87 set in the Restraints Control Module (RCM)?
- Yes : INSTALL a new PCM. REFER to ELECTRONIC ENGINE CONTROLS . CLEAR the DTCs. REPEAT the self-test.
- No : INSTALL a new IPC. REFER to INSTRUMENT PANEL CLUSTER (IPC) . TEST the system for normal operation.