Pinpoint Test E: DTC U0100:87

WARNING: This page is about a different car, the 2011 Lincoln MKT. However, it is still accessible from the selected car via links, so may be relevant.

E1 VERIFY CUSTOMER CONCERN
- Ignition ON.
- Verify that there is an observable symptom present.
- Is an observable symptom present?
1. Yes : GO to E2.
2. No : The system is operating normally at this time. The DTC may have been set due to high network traffic or intermittent fault condition.
E2 CHECK THE COMMUNICATION NETWORK
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Network Test.
- Carry out the network test.
- Does the PCM pass the network test?
1. Yes : GO to E3.
2. No : REFER to MODULE COMMUNICATIONS NETWORK article.
E3 RECHECK THE RFA MODULE DTCs
- Clear the DTCs. Repeat the RFA module self-test.
- Is DTC U0100:87 still present?
1. Yes : GO to E4.
2. No : The system is operating correctly at this time. The DTC may have been set due to high network traffic or intermittent fault condition.
E4 CHECK FOR DTC U0100 OR DTC U0100:87 IN OTHER MODULES
NOTE: If new modules were installed prior to the DTC being set, the module configuration may be incorrectly set during Programmable Module Installation (PMI) or the PMI may not have been carried out.
- Clear all DTCs.
- Ignition OFF.
- Ignition ON.
- Wait 10 seconds.
- Enter the following diagnostic mode on the scan tool: Self-Test.
- Retrieve the continuous memory DTCs from all modules.
- Is DTC U0100 or DTC U0100:87 set in any other module?
1. Yes : INSTALL a new PCM. REFER to ENGINE CONTROLS - ELECTRONIC ENGINE CONTROLS article. TEST the system for normal operation.
2. No : INSTALL a new RFA module. REFER to REMOTE FUNCTION ACTUATOR (RFA) MODULE . TEST the system for normal operation.