Pinpoint Test N: DTC U0155:00

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

N1 VERIFY CUSTOMER CONCERN
- Ignition ON.
- Verify that there is an observable symptom present.
- Is an observable symptom present?
- Yes : GO to N2.
- 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.
N2 CHECK THE COMMUNICATION NETWORK
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Network Test.
- Carry out the network test.
- Does the IPC pass the network test?
- Yes : GO to N3.
- No : REFER to MODULE COMMUNICATIONS NETWORK , The IPC Does Not Respond To The Scan Tool.
N3 RETRIEVE THE RECORDED DTCs FROM THE RFA MODULE SELF-TEST
- Check for recorded RFA module DTCs from the self-test.
- Is DTC U3003:16 or DTC U3003:17 recorded?
- Yes : For DTC U3003:16, GO to Pinpoint Test O .
  For DTC U3003:17, GO to Pinpoint Test P .
- No : GO to N4.
N4 RECHECK THE RFA MODULE DTCs
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 the DTCs. Repeat the RFA module self-test.
- Is DTC U0155:00 still present?
- Yes : GO to N5.
- 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.
N5 CHECK FOR DTC U0155:00 OR DTC U0155 SET IN OTHER MODULES
- Clear the 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 U0155:00 or DTC U0155 set in any other module?
- Yes : INSTALL a new IPC. REFER to INSTRUMENTATION, MESSAGE CENTER & WARNING CHIMES .
- No : INSTALL a new RFA module. REFER to Remote Function Actuator (RFA) Module . TEST the system for normal operation.