Pinpoint Test F: DTC U0140:87
- F1 VERIFY CUSTOMER CONCERN
- Ignition ON.
- Verify that there is an observable symptom present.
- Is an observable symptom present?
- Yes: Go to F2 .
- 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.
- F2 CHECK THE COMMUNICATION NETWORK
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Network Test.
- Carry out the network test.
- Does the SJB pass the network test?
- Yes: Go to F3 .
- No: Refer to MODULE COMMUNICATIONS NETWORK article, The SJB Does Not Respond To The Scan Tool.
- F3 RETRIEVE THE RECORDED DTCs FROM THE SELF-TEST
- Check for recorded BCM-B DTCs from the self-test.
- Is DTC U3003:62 recorded?
- Yes: Go to PINPOINT TEST I .
- No: Go to F4 .
- F4 RECHECK THE BCM-B 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 BCM-B self-test.
- Is DTC U0140:87 still present?
- Yes: Go to F5 .
- 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.
- F5 CHECK FOR DTC U0140:87 SET IN OTHER MODULES
- 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 U0140:87 or DTC U0140 set in any other module?
- Yes: INSTALL a new SJB . Refer to SMART JUNCTION BOX (SJB) in this service information. CLEAR the DTCs. REPEAT the BCM-B self-test.
- No: INSTALL a new BCM-B. Refer to BODY CONTROL MODULE B (BCM-B) in this service information. TEST the system for normal operation.