Pinpoint Test B : The Alarm System Does Not Arm Or No Turn Signal Flash Confirmation
WARNING: This page is about a different car, the 2016 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
- B1 RETRIEVE THE RECORDED DTCs FROM THE BCM
- Ignition ON.
- Using a diagnostic scan tool, carry out the BCM self-test.
Is DTC B1305:01 present?
Yes GO to Pinpoint Test C . No GO to B2. - B2 CHECK THE DOOR AJAR SWITCH INPUT
- Close all the doors.
- Observe the IPC.
Does the IPC indicate a door is ajar?
Yes DIAGNOSE the courtesy lamps staying on continuously. REFER to Interior Lighting . No GO to B3. - B3 MONITOR THE LIFTGATE AJAR SWITCH INPUT
- Close the liftgate.
- Observe the IPC.
Does the IPC indicate the liftgate is ajar?
Yes DIAGNOSE the courtesy lamps staying on continuously. REFER to Interior Lighting . No GO to B4. - B4 CHECK THE HAZARD LAMP OPERATION
- Ignition OFF.
- Activate the hazard flasher lamp function and observe the turn signals.
Do all the turn signals flash on and off?
Yes GO to B5. No DIAGNOSE the inoperative turn signals. REFER to Exterior Lighting . - B5 CHECK THE RKE TRANSMITTER FUNCTION
- Using the RKE transmitter, lock and unlock the doors.
Do the doors lock and unlock?
Yes GO to B6. No DIAGNOSE the inoperative RKE transmitter. REFER to Handles, Locks, Latches and Entry Systems . - B6 CHECK THE KEYLESS ENTRY KEYPAD FUNCTION
- Using the keyless entry keypad, lock the doors (touch 7/8 and 9/0).
Do the doors lock?
Yes GO to B7. No DIAGNOSE the keyless entry keypad. REFER to Handles, Locks, Latches and Entry Systems . - B7 CHECK FOR CORRECT BCM OPERATION
- Disconnect and inspect all the BCM 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 all the BCM connectors. Make sure they seat correctly.
- Operate the system and determine if the concern is still present.
Is the concern still present?
Yes CHECK On-Line Automotive Service Information System(OASIS) for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, Refer to BCM Hardware Testing .. 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.