Pinpoint Test B: DTC (Diagnostic Trouble Code) U0100:87

• Carry out the Battery Condition Test.

  REFER to: BATTERY .

Did the battery pass the Battery Condition Test? 

1. Yes  : GO to B2 
2. No  : INSTALL a new battery.

   REFER to: BATTERY .

• Ignition ON.
• Using a diagnostic scan tool, perform the BCM  self-test.

Is DTC U0100:00 recorded? 

1. Yes  : GO to PINPOINT TEST A 
2. No  : GO to B3 

• Using a diagnostic scan tool, clear the BCM  Diagnostic Trouble Codes (DTCs).
• Wait 10 seconds.
• Cycle the ignition from ON to OFF and then back to ON.
• Using a diagnostic scan tool, perform the BCM  self-test.

Is DTC U0100:87 retrieved? 

1. Yes  : GO to B4 
2. 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.

• Ignition OFF.
• Disconnect and inspect all PCM  connectors.
• Repair:
  • corrosion (install new connector or terminals - clean module pins)
  • damaged or bent pins - install new terminals/pins
  • pushed-out pins - install new pins as necessary
• Reconnect the PCM  connectors and make sure they seat and latch correctly.
• Operate the system and determine if the concern is still present.

Is the concern still present? 

1. Yes  : CHECK OASIS  for any applicable Technical Service Bulletins (TSBs). If a TSB  exists for this concern, DISCONTINUE this test and FOLLOW TSB  instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new PCM  .

   For the 2.0L Duratec-HE (125kW/170PS) - MI4 engine,

   REFER to: POWERTRAIN CONTROL MODULE (PCM) .

   For the 2.0L EcoBoost (184kW/250PS) - MI4 engine,

   REFER to: POWERTRAIN CONTROL MODULE (PCM) .

2. No  : The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.