Pinpoint Test K : U0140:00

WARNING: This page is about a different car, the 2018 Ford EcoSport. However, it is still accessible from the selected car via links, so may be relevant.

Refer to Power Distribution/BCM for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Steering Wheel and Column Electrical Components - System Operation and Component Description .

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
BCM U0140:00	Lost Communication With Body Control Module: No Sub Type Information	This DTC sets if the SCCM does not receive an expected message from the BCM.

Possible Sources

Communication concern
BCM
SCCM

NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test.

K1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes	CLEAR the DTC. The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition

GO to K2

K2 CHECK THE COMMUNICATION NETWORK
- Ignition ON.
- Using a diagnostic scan tool, carry out the network test.
Does the GWM pass the network test?

Yes GO to K3

No REFER to: Communications Network .

K3 PERFORM THE SCCM (STEERING COLUMN CONTROL MODULE) SELF-TEST
- Using a diagnostic scan tool, carry out the SCCM self-test.
Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes REFER to SCCM DTC Chart in this information.

No GO to K4

K4 CHECK THE BCM (BODY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
- Using a diagnostic scan tool, carry out the BCM self-test.
Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes REFER to: Communications Network .

No GO to K5

K5 RECHECK THE SCCM (STEERING COLUMN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, clear the SCCM Diagnostic Trouble Codes (DTCs).

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, perform the continuous memory self-test.

Using a diagnostic scan tool, check the SCCM Diagnostic Trouble Codes (DTCs).

Is DTC U0140:00 present?

Yes

GO to K6

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.

K6 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI, or the PMI may not have been carried out.

CHECK the vehicle service history for recent service actions related to the GWM or SCCM. If recent service history is found:
- verify correct replacement module was installed
  - HVBOM may be used to verify the correct replacement module was installed
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a similar vehicle and installed into customer vehicle
  - return the swapped module to source vehicle and obtain the correct replacement module
  - if a new replacement module is installed, PERFORM PMI using as-built data
- Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to K7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

K7 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

Ignition OFF.

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) .

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.