Pinpoint Test B: The Alarm System Does Not Arm Or No Turn Signals Flash Confirmation

WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

Normal Operation and Fault Conditions
REFER to: Perimeter Anti-Theft Alarm - System Operation and Component Description .

Possible Sources
- Door ajar input
- Hood switch input
- Turn signal output
- RKE transmitter concern
- BCM

B1 CHECK FOR BCM (BODY CONTROL MODULE) DTC (DIAGNOSTIC TROUBLE CODE) S

NOTE: DTC B1305:01 and/or B1305:15 sets if the hood is open. Make sure the hood is closed prior to running the self-test.
- Ignition ON.
- Using a diagnostic scan tool, carry out the BCM self-test.
Are any Diagnostic Trouble Codes (DTCs) present?

Yes REFER to the DTC Chart in DTC Chart(s) .

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: Instrumentation, Message Center and Warning Chimes .

No GO to B3

B3 VERIFY THE HAZARD FLASHER 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 B4

No DIAGNOSE the inoperative turn signals. REFER to: Turn Signal and Hazard Lamps .

B4 CHECK THE RKE (REMOTE KEYLESS ENTRY) TRANSMITTER FUNCTION
- Using the RKE transmitter, lock and unlock the doors.
Do the doors lock and unlock?

Yes GO to B5

No DIAGNOSE the inoperative RKE transmitter. REFER to: Locks, Latches and Entry Systems .

B5 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) 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 the BCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes	CHECK OASIS for any applicable service articles: TSB, GSB, SSM, or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new BCM. REFER to: Body Control Module (BCM) .

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.