Pinpoint Test Av: DTC U0121:00

WARNING: This page is about a different car, the 2012 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.

AV1 VERIFY THE CUSTOMER CONCERN
- Ignition ON.
- Verify there is an observable symptom present.
- Is an observable symptom present?
  - Yes : GO to AV2.
  - No : The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.
AV2 CHECK THE COMMUNICATION NETWORK
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Network Test.
- Carry out the network test.
- Does the ABS module pass the network test?
  - Yes : GO to AV3.
  - No : REFER to MODULE COMMUNICATIONS NETWORK .
AV3 RETRIEVE THE RECORDED DTCs FROM THE ABS MODULE SELF-TEST
- Check for recorded DTCs from the ABS module self-test.
- Is DTC U3003:16 or DTC U3003:17 recorded?
  - Yes : REFER to ANTI-LOCK BRAKE SYSTEM (ABS) AND STABILITY CONTROL .
  - No : GO to AV4.
AV4 RETRIEVE THE RECORDED DTCs FROM THE IPC SELF-TEST
- Check for recorded DTCs from the IPC self-test.
- Is DTC U3003:16 or DTC U3003:17 recorded?
  - Yes : For DTC U3003:16, GO to Pinpoint Test BD .
    For DTC U3003:17, GO to Pinpoint Test BE .
  - No : GO to AV5.
AV5 RECHECK THE IPC DTCs
NOTE: If new modules were installed prior to the DTC being set, the module configuration may be incorrectly set during the Programmable Module Installation (PMI) or the PMI may not have been carried out.
- Clear the DTCs.
- Wait 10 seconds.
- Repeat the IPC self-test.
- Is DTC U0121:00 still present?
  - Yes : INSTALL a new ABS module. REFER to ANTI-LOCK BRAKE SYSTEM (ABS) AND STABILITY CONTROL . CLEAR the DTCs. REPEAT the IPC self-test.
    If DTC U0121:00 is still present, INSTALL a new IPC. REFER to Instrument Panel Cluster (IPC) . TEST the system for normal operation.
  - 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.