Ford Escape: Exterior Lighting / Diagnosis and Testing - Trailer Lamps
Diagnostic Trouble Code (DTC) Chart
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).
Module |
DTC |
Description |
Action |
TRM |
B10A1:78 |
Trailer Tow Detection: Alignment Or Adjustment Incorrect |
GO to Pinpoint Test B |
TRM |
B1449:11 |
Trailer Tow Park/Tail Lamp Output: Circuit Short To Ground |
GO to Pinpoint Test C |
TRM |
B1449:12 |
Trailer Tow Park/Tail Lamp Output: Circuit Short To Battery |
GO to Pinpoint Test C |
TRM |
B1D08:11 |
Left Trailer Direction Indicator: Circuit Short To Ground |
GO to Pinpoint Test B |
TRM |
B1D08:12 |
Left Trailer Direction Indicator: Circuit Short To Battery |
GO to Pinpoint Test B |
TRM |
B1D09:11 |
Right Trailer Direction Indicator: Circuit Short To Ground |
GO to Pinpoint Test B |
TRM |
B1D09:12 |
Right Trailer Direction Indicator: Circuit Short To Battery |
GO to Pinpoint Test B |
TRM |
U0140:00 |
Lost Communication With Body Control Module: No Sub Type Information |
GO to Pinpoint Test D |
TRM |
U0422:68 |
Invalid Data Received From Body Control Module: Event Information |
GO to Pinpoint Test E |
TRM |
U1000:00 |
Solid State Driver Protection Active -Driver Disabled: No Sub Type Information |
GO to Pinpoint Test B |
TRM |
U1000:00 |
Solid State Driver Protection Active -Driver Disabled: No Sub Type Information |
GO to Pinpoint Test G |
TRM |
U2100:00 |
Initial Configuration Not Complete: No Sub Type Information |
GO to Pinpoint Test F |
TRM |
U3000:49 |
Control Module: Internal Electronic Failure |
GO to Pinpoint Test B |
TRM |
U3000:49 |
Control Module: Internal Electronic Failure |
GO to Pinpoint Test G |
Global Customer Symptom Code (GCSC) Chart
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 |
Action |
Lighting/Glass/Vision >
Exterior Lighting >
Trailer >
Inoperative |
GO to Pinpoint Test A |
Lighting/Glass/Vision >
Exterior Lighting >
Trailer >
Inoperative |
GO to Pinpoint Test B |
Lighting/Glass/Vision >
Exterior Lighting >
Trailer >
Inoperative |
GO to Pinpoint Test C |
Lighting/Glass/Vision >
Exterior Lighting >
Trailer >
Stays On |
GO to Pinpoint Test B |
Lighting/Glass/Vision >
Exterior Lighting >
Trailer >
Stays On |
GO to Pinpoint Test C |
Symptom Charts
Symptom Chart: Trailer 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).
Condition
|
Actions
|
A module does not respond to the diagnostic scan tool
|
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
|
All the trailer lamps are inoperative
|
GO to Pinpoint Test A
|
The trailer stop/turn lamp is inoperative or always on
|
GO to Pinpoint Test B
|
The trailer parking lamps are inoperative or always on
|
GO to Pinpoint Test C
|
Pinpoint Tests
PINPOINT TEST A: ALL THE TRAILER LAMPS ARE INOPERATIVE
Refer to Wiring Diagrams Cell 95 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 - System Operation and Component Description (417-01 Exterior Lighting, Description and Operation).
Possible Sources
- Fuse
- Wiring, terminals or connectors
-
TRM
Visual Inspection and Pre-checks
- Verify BJB fuse 91 (40A) is OK.
|
A1 CHECK FOR VOLTAGE TO THE TRM (TRAILER MODULE)
|
-
Measure:
Click to display connectors
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C425A-1
|
|
Ground
|
Is the voltage greater than 11 volts?
No |
VERIFY the BJB
fuse 91 (40A) is OK. If OK, REPAIR the circuit. If not OK, REFER to
the Wiring Diagrams manual to identify the possible causes of the
circuit short.
|
|
A2 CHECK THE TRM (TRAILER MODULE)
GROUND |
-
Measure:
Click to display connectors
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C425A-1
|
|
C425B-1
|
Is the voltage greater than 11 volts?
|
A3 CHECK FOR CORRECT TRM (TRAILER MODULE)
OPERATION |
-
Disconnect and inspect all TRM 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 TRM 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 TRM . REFER to: Trailer Module (TRM) (417-01 Exterior Lighting, 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.
|
|
PINPOINT TEST B: THE TRAILER STOP/TURN LAMP IS INOPERATIVE OR ALWAYS ON
Refer to Wiring Diagrams Cell 95 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 - System Operation and Component Description (417-01 Exterior Lighting, Description and Operation).
DTC Fault Trigger Conditions
DTC |
Description |
Fault Trigger Condition |
TRM B10A1:78 |
Trailer Tow Detection: Alignment Or Adjustment Incorrect |
An on-demand DTC that sets when the TRM detects no trailer connected from the LH trailer turn/stoplamp output circuit.
|
TRM B1D08:11 |
Left Trailer Direction Indicator: Circuit Short To Ground |
A continuous memory and on-demand DTC that sets when the TRM detects a
short to ground from the LH trailer stoplamp/turn signal output circuit.
|
TRM B1D08:12 |
Left Trailer Direction Indicator: Circuit Short To Battery |
A continuous memory and on-demand DTC that sets when the TRM detects a
short to voltage from the LH trailer stoplamp/turn signal output
circuit.
|
TRM B1D09:11 |
Right Trailer Direction Indicator: Circuit Short To Ground |
A continuous memory and on-demand DTC that sets when the TRM detects a
short to ground from the RH trailer stoplamp/turn signal output circuit.
|
TRM B1D09:12 |
Right Trailer Direction Indicator: Circuit Short To Battery |
A continuous memory and on-demand DTC that sets when the TRM detects a
short to voltage from the RH trailer stoplamp/turn signal output
circuit.
|
TRM U1000:00 |
Solid State Driver Protection Active -Driver Disabled: No Sub Type Information |
A continuous DTC that sets when the TRM
has temporarily shut down the output driver. The module has
temporarily disabled a trailer stop/turn lamp output because an
excessive current draw exists (such as a short to ground). The TRM
cannot enable the trailer stop/turn lamp output until the cause of the
short is corrected, the Diagnostic Trouble Codes (DTCs) have been
cleared and a successful self-test is run.
|
TRM U3000:49 |
Control Module: Internal Electronic Failure |
A continuous DTC that sets when the TRM
has permanently shut down the output driver. The module has
permanently disabled a trailer stop/turn lamp output because an
excessive current draw fault (such as a short to ground) has exceeded
the limits that the TRM can withstand. The cause of the excessive current draw MUST be corrected before a new TRM is installed.
|
Possible Sources
- Wiring, terminals or connectors
- Trailer concern
-
TRM
|
B1 CHECK FOR TRM (TRAILER MODULE)
DIAGNOSTIC TROUBLE CODES (DTCS) |
-
Disconnect the trailer if connected.
-
Disconnect Trailer Socket C439
.
-
Using a diagnostic scan tool, perform the TRM self-test.
Are any TRM Diagnostic Trouble Codes (DTCs) present?
Yes |
For DTC B1D08:11 or B1D09:11, GO to B2
For DTC B1D08:12, or B1D09:12, GO to B3
For DTC B10A1:78, this DTC sets when no trailer is connected to the LH
trailer turn/stoplamp output circuit. IGNORE this code and continue
diagnosis.
For DTC
U1000:00, CLEAR the Diagnostic Trouble Codes (DTCs) and REPEAT the
self-test (required to enable the trailer stop/turn lamp output driver
if DTC U1000:00 is present). TEST the system for normal operation.
For DTC U3000:49, INSTALL a new TRM . REFER to: Trailer Module (TRM) (417-01 Exterior Lighting, Removal and Installation).
For all other Diagnostic Trouble Codes (DTCs), REFER to the TRM
DTC Chart in this section.
|
No |
If sent to this test because of a TRM
DTC , the vehicle is operating correctly. SEND the trailer to an authorized camper/trailer repair facility.
If not sent to this test because of a TRM
DTC , GO to B4
|
|
B2 CHECK FOR A SHORT TO GROUND AT THE TRAILER TOW CONNECTOR |
-
Measure:
Click to display connectors
LH Stop/Turn
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C439-2
|
|
Ground
|
Click to display connectors
RH Stop/Turn
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C439-1
|
|
Ground
|
Is the resistance greater than 10,000 ohms?
No |
REPAIR the circuit. After the repair:
If no Diagnostic Trouble Codes (DTCs) are present, TEST the system for normal operation.
If any TRM Diagnostic Trouble Codes (DTCs) other than DTC
U3000:49 are present, CLEAR the Diagnostic Trouble Codes (DTCs),
REPEAT the self-test (required to enable the lamp output driver) and
cycle the ignition OFF and ON. TEST the system for normal operation.
If DTC U3000:49 is present, INSTALL a new TRM . REFER to: Trailer Module (TRM) (417-01 Exterior Lighting, Removal and Installation).
|
|
B3 CHECK FOR A SHORT TO VOLTAGE AT THE TRAILER TOW CONNECTOR |
-
Measure:
Click to display connectors
LH Stop/Turn
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C439-2
|
|
Ground
|
Click to display connectors
RH Stop/Turn
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C439-1
|
|
Ground
|
Is any voltage present?
|
B4 CHECK THE TRM (TRAILER MODULE)
STOPLAMP OUTPUTS |
-
While the brake pedal is pressed, measure:
Click to display connectors
LH Stop/Turn
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C439-2
|
|
Ground
|
Click to display connectors
RH Stop/Turn
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C439-1
|
|
Ground
|
Are the voltages greater than 11 volts?
Yes |
The vehicle is operating correctly. SEND the trailer to an authorized camper/trailer repair facility.
|
|
B5 CHECK FOR AN OPEN TO THE TRAILER TOW CONNECTOR |
-
Measure:
Click to display connectors
LH Stop/Turn
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C439-2
|
|
C425C-1
|
Click to display connectors
RH Stop/Turn
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C439-1
|
|
C425C-2
|
Is the resistance less than 3 ohms?
|
B6 CHECK FOR CORRECT TRM (TRAILER MODULE)
OPERATION |
-
Disconnect and inspect all TRM 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 TRM 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 TRM . REFER to: Trailer Module (TRM) (417-01 Exterior Lighting, 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.
|
|
PINPOINT TEST C: THE TRAILER PARKING LAMPS ARE INOPERATIVE OR ALWAYS ON
Refer to Wiring Diagrams Cell 95 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 - System Operation and Component Description (417-01 Exterior Lighting, Description and Operation).
DTC Fault Trigger Conditions
DTC |
Description |
Fault Trigger Condition |
TRM B1449:11 |
Trailer Tow Park/Tail Lamp Output: Circuit Short To Ground |
A continuous memory and on-demand DTC that sets when the TRM detects a
short to ground from the trailer parking lamps output circuit.
|
TRM B1449:12 |
Trailer Tow Park/Tail Lamp Output: Circuit Short To Battery |
A continuous memory and on-demand DTC that sets when the TRM detects a
short to voltage from the trailer parking lamps output circuit.
|
Possible Sources
- Wiring, terminals or connectors
- Trailer concern
-
TRM
|
C1 CHECK FOR TRM (TRAILER MODULE)
DIAGNOSTIC TROUBLE CODES (DTCS) |
-
Disconnect the trailer if connected.
-
Disconnect Trailer Socket C439
.
-
Using a diagnostic scan tool, perform the TRM self-test.
Are any TRM Diagnostic Trouble Codes (DTCs) present?
Yes |
For DTC B1449:11, GO to C2
For DTC B1449:12, GO to C3
For DTC
U1000:00, CLEAR the Diagnostic Trouble Codes (DTCs) and REPEAT the
self-test (required to enable the trailer parking lamps output driver if
DTC U1000:00 is present). TEST the system for normal operation.
For DTC U3000:49, INSTALL a new TRM . REFER to: Trailer Module (TRM) (417-01 Exterior Lighting, Removal and Installation).
For all other Diagnostic Trouble Codes (DTCs), REFER to the TRM
DTC Chart in this section.
|
No |
If sent to this test because of a TRM
DTC , the vehicle is operating correctly. SEND the trailer to an authorized camper/trailer repair facility.
If not sent to this test because of a TRM
DTC , GO to C4
|
|
C2 CHECK FOR A SHORT TO GROUND AT THE TRAILER TOW CONNECTOR |
-
Measure:
Click to display connectors
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C439-3
|
|
Ground
|
Is the resistance greater than 10,000 ohms?
No |
REPAIR the circuit. After the repair:
If no Diagnostic Trouble Codes (DTCs) are present, TEST the system for normal operation.
If any TRM Diagnostic Trouble Codes (DTCs) other than DTC
U3000:49 are present, CLEAR the Diagnostic Trouble Codes (DTCs),
REPEAT the self-test (required to enable the lamp output driver) and
cycle the ignition OFF and ON. TEST the system for normal operation.
If DTC U3000:49 is present, INSTALL a new TRM . REFER to: Trailer Module (TRM) (417-01 Exterior Lighting, Removal and Installation).
|
|
C3 CHECK FOR A SHORT TO VOLTAGE AT THE TRAILER TOW CONNECTOR |
-
Measure:
Click to display connectors
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C439-3
|
|
Ground
|
Is any voltage present?
|
C4 CHECK THE TRM (TRAILER MODULE)
PARKING LAMPS OUTPUTS |
-
Place the headlamp switch in the PARKING LAMPS ON position.
-
Measure:
Click to display connectors
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C439-3
|
|
Ground
|
Is the voltage greater than 11 volts?
Yes |
The vehicle is operating correctly. SEND the trailer to an authorized camper/trailer repair facility.
|
|
C5 CHECK FOR AN OPEN TO THE TRAILER TOW CONNECTOR |
-
Measure:
Click to display connectors
Positive Lead
|
Measurement / Action
|
Negative Lead
|
C439-3
|
|
C425C-3
|
Is the resistance less than 3 ohms?
|
C6 CHECK FOR CORRECT TRM (TRAILER MODULE)
OPERATION |
-
Disconnect and inspect all TRM 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 TRM 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 TRM . REFER to: Trailer Module (TRM) (417-01 Exterior Lighting, 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.
|
|
PINPOINT TEST D: U0140:00
Refer to Wiring Diagrams Cell 95 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 - System Operation and Component Description (417-01 Exterior Lighting, Description and Operation).
DTC Fault Trigger Conditions
DTC |
Description |
Fault Trigger Condition |
TRM U0140:00 |
Lost Communication With Body Control Module: No Sub Type Information |
A continuous memory DTC that sets when the TRM if messages received from the BCM are missing.
|
Possible Sources
- Communication concern
-
BCM
-
TRM
-
BCM concern
|
D1 VERIFY THE CUSTOMER CONCERN |
-
Verify that there is an observable symptom present.
Is an observable symptom present?
No |
The system is operating normally at this time. The DTC may have been
set due to high network traffic or an intermittent fault condition.
CLEAR the DTC .
|
|
D2 CHECK THE COMMUNICATION NETWORK |
-
Using a diagnostic scan tool, perform a network test.
Does the TRM pass the network test?
No |
DIAGNOSE the TRM not communicating with the diagnostic scan tool. REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
|
|
D3 RETRIEVE THE BCM (BODY CONTROL MODULE)
DIAGNOSTIC TROUBLE CODES (DTCS) |
-
Using a diagnostic scan tool, perform the BCM self-test.
Are any BCM Diagnostic Trouble Codes (DTCs) recorded?
Yes |
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).
|
|
D4 RECHECK THE TRM (TRAILER MODULE)
DIAGNOSTIC TROUBLE CODES (DTCS) |
-
Using a diagnostic scan tool, clear the TRM Diagnostic Trouble Codes (DTCs).
-
Using a diagnostic scan tool, perform the TRM self-test.
Is DTC U0140:00 still present?
No |
The system is operating correctly at this time. The DTC may have been
set due to high network traffic or an intermittent fault condition.
|
|
D5 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE)
U0140 SET IN OTHER MODULES |
-
Using a diagnostic scan tool, clear all Diagnostic Trouble Codes (DTCs).
-
Using a diagnostic scan tool, perform the self-test.
-
Retrieve the Diagnostic Trouble Codes (DTCs) from all modules.
Is DTC U0140 set in any other module?
|
D6 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 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) (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.
|
|
D7 CHECK FOR CORRECT TRM (TRAILER MODULE)
OPERATION |
-
Disconnect and inspect all TRM 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 TRM 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 TRM . REFER to: Trailer Module (TRM) (417-01 Exterior Lighting, 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.
|
|
PINPOINT TEST E: U0422:68
Refer to Wiring Diagrams Cell 92 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 - System Operation and Component Description (417-01 Exterior Lighting, Description and Operation).
DTC Fault Trigger Conditions
DTC |
Description |
Fault Trigger Condition |
TRM U0422:68 |
Invalid Data Received From Body Control Module: Event Information |
A continuous memory and on-demand DTC that sets when the TRM receives invalid network data from the BCM .
|
Possible Sources
|
E1 REPEAT THE ON-DEMAND SELF-TEST AND CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) |
-
Using a diagnostic scan tool, repeat the BCM self-test.
Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes |
REPAIR the BCM Diagnostic Trouble Codes (DTCs). REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).
|
No |
Diagnose all network Diagnostic Trouble Codes (DTCs). REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
|
|
PINPOINT TEST F: U2100:00
Refer to Wiring Diagrams Cell 92 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 - System Operation and Component Description (417-01 Exterior Lighting, Description and Operation).
DTC Fault Trigger Conditions
DTC |
Description |
Fault Trigger Condition |
TRM U2100:00 |
Initial Configuration Not Complete: No Sub Type Information |
A continuous memory and on-demand DTC that sets due to incomplete or incorrect TRM configuration.
|
Possible Sources
|
F1 CHECK VEHICLE HISTORY |
-
Check vehicle history for recent service actions with the TRM .
Where there any recent TRM service actions?
Yes |
PERFORM the PMI procedure as directed by the scan tool. REFER to: Module Programming (418-01 Module Configuration, General Procedures).
|
|
F2 CHECK FOR CORRECT TRM (TRAILER MODULE)
OPERATION |
-
Disconnect and inspect the TRM and 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 TRM and related in-line connectors. Make sure it seats and latches 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 TRM . REFER to: Trailer Module (TRM) (417-01 Exterior Lighting, 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.
|
|
PINPOINT TEST G: U1000:00, U3000:49
Refer to Wiring Diagrams Cell 92 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 - System Operation and Component Description (417-01 Exterior Lighting, Description and Operation).
DTC Fault Trigger Conditions
DTC |
Description |
Fault Trigger Condition |
TRM U1000:00 |
Solid State Driver Protection Active -Driver Disabled: No Sub Type Information |
A continuous memory and on-demand DTC
that sets when the module has temporarily disabled an output because
an excessive current draw exists (such as a short to ground). The TRM
cannot enable the output until the cause of the short is corrected.
ADDRESS all other Diagnostic Trouble Codes (DTCs) first. After the cause
of the concern is corrected, CLEAR the Diagnostic Trouble Codes (DTCs).
REPEAT the self-test.
|
TRM U3000:49 |
Control Module: Internal Electronic Failure |
A continuous memory and on-demand DTC
that sets when the module has permanently disabled an output because
an excessive current draw fault (such as a short to ground) has exceeded
the limits that the TRM can withstand. The cause of the excessive current draw MUST be corrected before a new TRM
is installed. ADDRESS all other Diagnostic Trouble Codes (DTCs) first.
After the cause of the concern is corrected, INSTALL a new TRM .
|
Possible Sources
|
G1 REPEAT THE ON-DEMAND SELF-TEST AND CHECK FOR TRM (TRAILER MODULE)
DIAGNOSTIC TROUBLE CODES (DTCS) |
-
Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the TRM self-test.
Does TRM
DTC U1000:00 or U3000:49 return?
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 TRM . REFER to: Trailer Module (TRM) (417-01 Exterior Lighting, Removal and Installation).
|
No |
The system is operating correctly at this time.
|
|
Diagnostic Trouble Code (DTC) Chart
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)...
Diagnostic Trouble Code (DTC) Chart
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:
Materials
Name
Specification
Motorcraft® Metal Brake Parts CleanerPM-4-A, PM-4-B, APM-4-C
-
Removal
NOTE:
Removal steps in this procedure may contain installation details.
Remove the wheel and tire.
Refer to: Wheel and Tire (204-04A Wheels and Tires, Removal and Installation)...
Special Tool(s) /
General Equipment
Interior Trim Remover
Removal
NOTE:
Removal steps in this procedure may contain installation details.
If installing a new BCM , connect a battery charger to the battery to
make sure it is charged to maintain proper battery voltage...