Pinpoint Test Q: An Individual Button Or Feature Is Inoperative From The RKE Transmitter

Q1 VERIFY THE DOOR LOCK OPERATION
- Press the lock and unlock button on the door lock control switch while observing the door lock operation.
- Do the door locks operate correctly?
- Yes : GO to Q2.
- No : CHECK the symptom and GO to SYMPTOM CHART - ELECTRICAL .
Q2 VERIFY THE HORN OPERATION
- Using a scan tool, view the BCM PIDs.
- Select the BCM horn PID (HORN) and active command the horn on then off.
- Does the horn sound when commanded on?
- Yes : GO to Q3.
- No : REFER to HORN .
Q3 VERIFY THE HAZARD LAMP OPERATION
- Activate the hazard flasher lamp function.
- Do the hazard lamps operate correctly?
- Yes : GO to Q4.
- No : REFER to EXTERIOR LIGHTING .
Q4 VERIFY THE LUGGAGE COMPARTMENT LID RELEASE OPERATION
- Unlock the doors using the door lock control switch.
- Press the luggage compartment lid release button.
- Does the luggage compartment lid latch release?
- Yes : If equipped with the factory remote start, GO to Q5. If equipped with the police package option, GO to Q6. If not equipped with the police package or the factory remote start, REPLACE the suspect IKT. PROGRAM the new IKT. REFER to Key Programming Using Diagnostic Equipment in ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS), WITHOUT INTELLIGENT ACCESS (IA) . INFORM the customer that any IKTs not present need to be programmed.
- No : GO to PINPOINT TEST M .
Q5 VERIFY THE REMOTE START BUTTON INPUT
- Using a scan tool, view the BCM PIDs.
- Monitor the BCM LST_RKE_xMTR PID while pressing the remote start button on the suspect IKT.
- Does the PID indicate the remote start button is being pressed?
- Yes : REFER to STARTING SYSTEM .
- No : REPLACE the suspect IKT. PROGRAM the new IKT. REFER to Key Programming Using Diagnostic Equipment in ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS), WITHOUT INTELLIGENT ACCESS (IA) . INFORM the customer that any IKTs not present need to be programmed.
Q6 CHECK THE BCM FOR THE RKE TRANSMITTER SIGNAL
- Ignition ON.
- Using a scan tool, view the BCM PIDs.
- Using a scan tool, monitor the BCM LST_RKE_xMTR PID while pressing the luggage compartment lid release button on the suspect RKE transmitter.
- Does the PID indicate the luggage compartment lid release button is being pressed?
- Yes : GO to Q7.
- No : REPLACE the suspect IKT or RKE transmitter. PROGRAM the new IKT or RKE transmitter. REFER to Key Programming Using Diagnostic Equipment in ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS), WITHOUT INTELLIGENT ACCESS (IA) or Remote Keyless Entry (RKE) Transmitter Programming. INFORM the customer that any IKTs not present need to be programmed.
Q7 CHECK THE BCM FOR THE LUGGAGE COMPARTMENT LID RELEASE OUTPUT CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect: BCM C2280D.
- Ignition ON.
- Measure the resistance between the BCM C2280D-28, circuit CPL80 (WH/GN), harness side and the BCM C2280D-29, circuit CPL84 (GN/BN), harness side.
  
  Fig 1: Checking BCM For Luggage Compartment Lid Release Output Circuit For Open
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 3 ohms?
- Yes : GO to Q8.
- No : REPAIR the circuit.
Q8 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 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 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, INSTALL a new BCM. REFER to MULTIFUNCTION ELECTRONIC MODULES .
- 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.