Ford Ecosport: Exterior Lighting / Diagnosis and Testing - Autolamps
DTC Chart: 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).
BCM
DTC Chart
DTC
|
Description
|
Action
|
B1A85:11
|
Ambient Light Sensor: Circuit Short To Ground
|
GO to Pinpoint Test A
|
B1A85:13
|
Ambient Light Sensor: Circuit Open
|
GO to Pinpoint Test A
|
For other BCM Diagnostic Trouble Codes (DTCs)
|
-
|
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).
|
Symptom Chart(s)
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: Autolamps
Symptom Chart
Condition
|
Possible Sources
|
Actions
|
A module does not respond to the diagnostic scan tool
|
-
Fuse
-
Wiring, terminals or connectors
-
Module
|
REFER to: Communications Network (418-00 Module Communications Network)
.
|
The autolamps are inoperative/do not operate correctly
|
Refer to the Pinpoint Test
|
GO to Pinpoint Test A
|
Pinpoint Tests
PINPOINT TEST A: THE AUTOLAMPS ARE INOPERATIVE/DO NOT OPERATE CORRECTLY
Refer to Wiring Diagrams Cell 85 for schematic and connector information.
Normal Operation and Fault Conditions
REFER to: Exterior Lighting - Overview (417-01 Exterior Lighting, Description and Operation).
REFER to: Exterior Lighting - Overview (417-01 Exterior Lighting, Description and Operation).
DTC Fault Trigger Conditions
DTC |
Description |
Fault Trigger Condition |
BCM B1A85:11 |
Ambient Light Sensor: Circuit Short To Ground |
A continuous memory and on-demand DTC that sets when the BCM detects a short to ground from the light sensor input circuit.
|
BCM B1A85:13 |
Ambient Light Sensor: Circuit Open |
An on-demand DTC that sets when the BCM detects an open or short to voltage from the light sensor input circuit.
|
Possible Sources
- Wiring, terminals or connectors
- Light sensor
-
BCM
Visual Inspection and Pre-checks
- Inspect the headlamp switch for damage.
- Inspect the light sensor for damage.
|
A1 CHECK THE MANUAL HEADLAMP OPERATION |
-
Place the headlamp switch in the HEADLAMPS and then OFF positions.
Do the headlamps operate correctly?
No |
REFER to: Headlamps (417-01 Exterior Lighting, Diagnosis and Testing).
|
|
A2 CHECK FOR VOLTAGE TO THE LIGHT SENSOR |
-
Disconnect: Autolamp Sensor C287 (vehicles with EMTC ).
-
Disconnect: Autolamp/Sunload Sensor C286 (vehicles with DATC ).
-
Place the headlamp switch in the AUTOLAMPS position.
-
Measure:
Click to display connectors
Vehicles With EMTC
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C287-4
|
|
Ground
|
Click to display connectors
Vehicles With DATC
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C286-4
|
|
Ground
|
Is the voltage approximately 5 volts?
No |
If the voltage is low, GO to A5
If the voltage is high, GO to A7
|
|
A3 CHECK THE LIGHT SENSOR FOR GROUND |
-
Measure:
Click to display connectors
Vehicles With EMTC
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C287-4
|
|
C287-5
|
Click to display connectors
Vehicles With DATC
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C286-4
|
|
C286-5
|
Is the voltage approximately 5 volts?
Yes |
INSTALL a new autolamp or autolamp/sunload sensor.
|
|
A4 CHECK THE LIGHT SENSOR GROUND CIRCUIT FOR AN OPEN |
-
Measure:
Click to display connectors
Vehicles With EMTC
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C287-5
|
|
C2280D-39
|
Click to display connectors
Vehicles With DATC
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C286-5
|
|
C2280D-39
|
Is the resistance less than 3 ohms?
|
A5 CHECK THE LIGHT SENSOR INPUT CIRCUIT FOR A SHORT TO GROUND |
-
Measure:
Click to display connectors
Vehicles With EMTC
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C287-4
|
|
Ground
|
Click to display connectors
Vehicles With DATC
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C286-4
|
|
Ground
|
Is the resistance greater than 10,000 ohms?
|
A6 CHECK THE LIGHT SENSOR INPUT CIRCUIT FOR AN OPEN |
-
Measure:
Click to display connectors
Vehicles With EMTC
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C287-4
|
|
C2280D-52
|
Click to display connectors
Vehicles With DATC
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C286-4
|
|
C2280D-52
|
Is the resistance less than 3 ohms?
|
A7 CHECK THE LIGHT SENSOR INPUT CIRCUIT FOR A SHORT TO VOLTAGE |
-
Measure:
Click to display connectors
Vehicles With EMTC
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C287-4
|
|
Ground
|
Click to display connectors
Vehicles With DATC
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C286-4
|
|
Ground
|
Is any voltage present?
|
A8 CHECK FOR CORRECT BCM (BODY CONTROL MODULE)
OPERATION |
-
Disconnect and inspect all BCM and all related in-line 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 and all related in-line 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.
|
|
DTC Chart: 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)...
DTC Chart: 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)...
Other information:
Activation
WARNING:
Before beginning any service procedure in this
section, refer to Safety Warnings in section 100-00 General Information.
Failure to follow this instruction may result in serious personal
injury.
Refer to: Health and Safety Precautions (100-00 General Information, Description and Operation)...
Repower
WARNING:
Incorrect repair techniques or actions can cause an
accidental Supplemental Restraint System (SRS) deployment. Never
compromise or depart from these instructions. Failure to precisely
follow all instructions could result in serious personal injury from an
accidental deployment...