417-01 Exterior Lighting 2013 - 2014 Fusion
Diagnosis and Testing Procedure revision date: 04/1/2013

Fog Lamps

DTC Chart: Body Control Module (BCM)

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).



  Body Control Module (BCM) DTC Chart


DTC Description Action
B1046:11 Front Fog Lamp Control Switch: Circuit Short To Ground   GO to Pinpoint Test C
B1147:11 Left Front Fog Lamps: Circuit Short To Ground   GO to Pinpoint Test B
B1147:15 Left Front Fog Lamps: Circuit Short To Battery or Open
B1148:11 Right Front Fog Lamps: Circuit Short To Ground   GO to Pinpoint Test B
B1148:15 Right Front Fog Lamps: Circuit Short To Battery or Open


Symptom Chart(s)

Symptom Chart: Fog Lamps

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).



  Symptom Chart


Condition Possible Sources Actions
A module does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • Module
 
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
Both front fog lamps are inoperative Refer to the Pinpoint Test   GO to Pinpoint Test A
An individual front fog lamp is inoperative Refer to the Pinpoint Test   GO to Pinpoint Test B
One or both front fog lamps are on continuously Refer to the Pinpoint Test   GO to Pinpoint Test C


Pinpoint Tests

Both Front Fog Lamps Are Inoperative


Refer to Wiring Diagrams Cell 86 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Exterior Lighting - System Operation and Component Description (417-01 Exterior Lighting, Description and Operation).

Possible Sources

Visual Inspection and Diagnostic Pre-checks


PINPOINT TEST A : BOTH FRONT FOG LAMPS ARE INOPERATIVE
A1   CHECK THE HEADLAMP SWITCH
  • Ignition OFF.
  • Disconnect: Headlamp Switch C205.
  • Carry out the headlamp switch component test.
    Refer to Wiring Diagrams Cell 149 for schematic and connector information.

Does the headlamp switch pass the component test?

Yes GO to A2
No INSTALL a new headlamp switch.
REFER to: Headlamp Switch (417-01 Exterior Lighting, Removal and Installation).


A2   CHECK THE HEADLAMP SWITCH FOG LAMP ENABLE CIRCUIT FOR AN OPEN
  • Disconnect: BCM C2280G.
  • Measure:


    Positive Lead Measurement / Action Negative Lead
      C205-14   C2280G-20



Is the resistance less than 3 ohms?

Yes GO to A3
No REPAIR the circuit.


A3   CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all 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 Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new BCM .
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
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.



An Individual Front Fog Lamp Is Inoperative


Refer to Wiring Diagrams Cell 86 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Exterior Lighting - System Operation and Component Description (417-01 Exterior Lighting, Description and Operation).



  DTC Fault Trigger Conditions


DTC Description Fault Trigger Conditions
B1147:11 Left Front Fog Lamps: Circuit Short To Ground Sets when the BCM detects a short to ground from the left fog lamp output circuit.
B1147:15 Left Front Fog Lamps: Circuit Short To Battery or Open Sets when the BCM detects an open or short to voltage from the left fog lamp output circuit.
B1148:11 Right Front Fog Lamps: Circuit Short To Ground Sets when the BCM detects a short to ground from the right fog lamp output circuit.
B1148:15 Right Front Fog Lamps: Circuit Short To Battery or Open Sets when the BCM detects an open or short to voltage from the right fog lamp output circuit.


Possible Sources

Visual Inspection and Diagnostic Pre-checks


PINPOINT TEST B : AN INDIVIDUAL FRONT FOG LAMP IS INOPERATIVE
B1   CHECK FOR VOLTAGE TO THE INOPERATIVE FOG LAMP
  • Ignition OFF.
  • Disconnect: Inoperative LH Fog Lamp C152 or RH Fog Lamp C162.
  • Ignition ON.
  • Place the headlamp switch in the parking lamps on position and engage the fog lamp switch.
  • Measure:

      LH Fog Lamp


    Positive Lead Measurement / Action Negative Lead
      C152-1   Ground




      RH Fog Lamp


    Positive Lead Measurement / Action Negative Lead
      C162-1   Ground



Is the voltage greater than 11 volts?

Yes GO to B2
No GO to B3


B2   CHECK FOG LAMP GROUND CIRCUIT FOR AN OPEN
  • Measure:

      LH Fog Lamp


    Positive Lead Measurement / Action Negative Lead
      C152-1   C152-2




      RH Fog Lamp


    Positive Lead Measurement / Action Negative Lead
      C162-1   C162-2



Is the voltage greater than 11 volts?

Yes INSTALL a new fog lamp bulb.
No REPAIR the circuit.


B3   CHECK FOG LAMP VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO GROUND
  • Place the headlamp switch in the HEADLAMPS OFF position.
  • Ignition OFF.
  • Disconnect: BCM C2280B.
  • Measure:

      LH Fog Lamp


    Positive Lead Measurement / Action Negative Lead
      C152-1   Ground




      RH Fog Lamp


    Positive Lead Measurement / Action Negative Lead
      C162-1   Ground



Is the resistance greater than 10,000 ohms?

Yes GO to B4
No REPAIR the circuit.


B4   CHECK FOG LAMP VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
  • Measure:

      LH Fog Lamp


    Positive Lead Measurement / Action Negative Lead
      C152-1   C2280B-12




      RH Fog Lamp


    Positive Lead Measurement / Action Negative Lead
      C162-1   C2280B-5



Is the resistance less than 3 ohms?

Yes GO to B5
No REPAIR the circuit.


B5   CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all 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 Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new BCM .
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
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.



One Or Both Front Fog Lamps Are On Continuously


Refer to Wiring Diagrams Cell 86 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Exterior Lighting - System Operation and Component Description (417-01 Exterior Lighting, Description and Operation).



  DTC Fault Trigger Conditions


DTC Description Fault Trigger Conditions
B1046:11 Front Fog Lamp Control Switch: Circuit Short To Ground Sets when the BCM detects a short to ground on the fog lamp on input circuit.
B1147:15 Left Front Fog Lamps: Circuit Short To Battery or Open Sets when the BCM detects an open or short to voltage from the left fog lamp output circuit.
B1148:15 Right Front Fog Lamps: Circuit Short To Battery or Open Sets when the BCM detects an open or short to voltage from the right fog lamp output circuit.


Possible Sources

Visual Inspection and Diagnostic Pre-checks


PINPOINT TEST C : ONE OR BOTH FRONT FOG LAMPS ARE ON CONTINUOUSLY
C1   CHECK FOG LAMP OPERATION
  • Ignition ON.
  • Place the headlamp switch in the OFF position.
  • Observe the operation of the LH and RH fog lamps.

Are both fog lamps illuminated?

Yes GO to C2
No GO to C4


C2   CHECK THE HEADLAMP SWITCH
  • Ignition OFF.
  • Disconnect: Headlamp Switch C205.
  • Carry out the headlamp switch component test.
    Refer to Wiring Diagrams Cell 149 for schematic and connector information.

Does the headlamp switch pass the component test?

Yes GO to C3
No INSTALL a new headlamp switch.
REFER to: Headlamp Switch (417-01 Exterior Lighting, Removal and Installation).


C3   CHECK THE FOG LAMP SWITCH CIRCUIT FOR A SHORT TO GROUND
  • Disconnect: BCM C2280G.
  • Measure:


    Positive Lead Measurement / Action Negative Lead
      C205-14   Ground



Is the resistance greater than 10,000 ohms?

Yes GO to C5
No REPAIR the circuit.


C4   CHECK THE FOG LAMP VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect: BCM C2280B.
  • Ignition ON.

Does either fog lamp continue to illuminate?

Yes REPAIR the circuit in question.
No GO to C5


C5   CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all 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 Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new BCM .
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
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.





Copyright © Ford Motor Company