Pinpoint Test W: B11D8:01, B11D8:11, B11D8:12, B11D8:13

WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

Refer to Wiring Diagrams SUPPLEMENTAL RESTRAINT SYSTEM for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Airbag and Seatbelt Pretensioner Supplemental Restraint System (SRS) - System Operation and Component Description .

The RCM transmits an event notification signal which communicates crash status and SRS deployment status to the BCM and PCM. When the BCM and PCM receive an event notification signal which indicates a crash, it initiates fuel cut-off and the SOS Post-Crash Alert feature.

The RCM monitors the event notification signal circuit for the following faults:

Short to voltage
Short to ground
Open circuit

If a fault is detected, the RCM stores DTC B11D8:11, B11D8:12 or B11D8:13 in memory. The airbag warning indicator does not illuminate if B11D8:11, B11D8:12 or B11D8:13 is set.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
BCM B11D8:01	Restraint Event Notification: General Electrical Failure	The BCM sets this DTC when there is a fault with the ENS (Event Notification system).
RCM B11D8:11	Restraint Event Notification: Circuit Short To Ground	A fault is indicated when the RCM senses a short to ground on the event notification signal circuit for more than 15 seconds.
RCM B11D8:12	Restraint Event Notification: Circuit Short To Battery	A fault is indicated when the RCM senses a short to voltage on the event notification signal circuit for more than 15 seconds.
RCM B11D8:13	Restraint Event Notification: Circuit Open	A fault is indicated when the RCM senses an open on the event notification signal circuit for more than 15 seconds.

Possible Sources

Wiring, terminals or connectors
BCM
RCM

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.
NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector.
NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test.
NOTE: Only disconnect or reconnect SRS components when instructed to do so within a pinpoint test step. Failure to follow this instruction may result in incorrect diagnosis of the SRS.
NOTE: Install new components only when directed to do so in the pinpoint test.
NOTE: Always make sure the correct SRS component is being installed. Parts released for other vehicles may not be compatible even if they appear physically similar. Check the part number listed in the Ford parts catalog to make sure the correct component is being installed. If an incorrect SRS component is installed, Diagnostic Trouble Codes (DTCs) may set.
NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.

W1 RETRIEVE RCM (RESTRAINTS CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

WARNING: Before beginning any service procedure In this article, refer to Safety warnings in General Information. Failure to follow this instruction may result in serious personal injury.

REFER to: Pyrotechnic Device Health and Safety Precautions .

Ignition ON.

Using a diagnostic scan tool, perform the RCM self-test to retrieve Diagnostic Trouble Codes (DTCs).

Was DTC B11D8:11, B11D8:12 or B11D8:13 retrieved on-demand during self-test?

Yes	This fault cannot be cleared until it is corrected and the DTC is no longer retrieved on-demand during the self-test. For DTC B11D8:11 GO to W2 For DTC B11D8:12, GO to W6 For DTC B11D8:13, GO to W5

No	This is an intermittent fault when present as a CMDTC only. GO to W10

W2 CHECK THE PCM (POWERTRAIN CONTROL MODULE) FOR A FAULT STATUS CHANGE

Ignition OFF.

Disconnect PCM C1232B (with 2.7L engine).

Disconnect PCM C1233B (with 3.0L diesel).

Disconnect PCM C1551B (with 3.3L engine).

Disconnect PCM C175B (with 3.5L engine).

Disconnect PCM C1381B (with 5.0L engine).

Disconnect BECM C4237A (HEV).

Ignition ON.

Using a diagnostic scan tool, perform the RCM self-test to retrieve Diagnostic Trouble Codes (DTCs).

Was DTC B11D8:11 retrieved on-demand during self-test?

Yes

GO to W3

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, Refer to PCM GUIDED ROUTINE TESTING
Internet Explorer version 11 or greater is required to perform this Pinpoint Test.

W3 CHECK THE BCM (BODY CONTROL MODULE) FOR A FAULT STATUS CHANGE

Ignition OFF.

Prior to reconnecting any previously disconnected component:
- Inspect connector(s) (including any inline connectors) for pushed-out, loose or spread terminals and loose or frayed wire connections at terminals.
- Inspect wire harness for any damage, pinched, cut or pierced wires.
- Repair any concerns found. Refer to Wiring Diagrams OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.

Connect the PCM connector.

Disconnect BCM C2280E.

Ignition ON.

Using a diagnostic scan tool, perform the RCM self-test to retrieve Diagnostic Trouble Codes (DTCs).

Was DTC B11D8:11 retrieved on-demand during self-test?

Yes

GO to W4

No	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) .

W4 CHECK THE EVENT NOTIFICATION SIGNAL CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Depower the SRS. REFER to: Supplemental Restraint System (SRS) Depowering .

Disconnect PCM C1232B (with 2.7L engine).

Disconnect PCM C1233B (with 3.0L diesel).

Disconnect PCM C1551B (with 3.3L engine).

Disconnect PCM C175B (with 3.5L engine).

Disconnect PCM C1381B (with 5.0L engine).

Disconnect BECM C4237A (HEV).

Measure:

Positive Lead	Measurement / Action	Negative Lead
C310B-42	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10, 000 ohms?

Yes

GO to W9

No	REPAIR the circuit. Refer to Wiring Diagrams OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information. GO to W11

W5 CHECK THE EVENT NOTIFICATION SIGNAL CIRCUIT FOR AN OPEN

Ignition OFF.

Depower the SRS. REFER to: Supplemental Restraint System (SRS) Depowering .

Disconnect RCM C310A and C310B.

Disconnect PCM C1232B (with 2.7L engine).

Disconnect PCM C1233B (with 3.0L diesel).

Disconnect PCM C1551B (with 3.3L engine).

Disconnect PCM C175B (with 3.5L engine).

Disconnect PCM C1381B (with 5.0L engine).

Disconnect BECM C4237A (HEV).

Measure:

Positive Lead	Measurement / Action	Negative Lead
C310B-42	Courtesy of FORD MOTOR COMPANY	C2280E-49

For 2.7L engine, measure:

Positive Lead	Measurement / Action	Negative Lead
C310B-42	Courtesy of FORD MOTOR COMPANY	C1232B-24

With 3.0L diesel, measure:

Positive Lead	Measurement / Action	Negative Lead
C310B-42	Courtesy of FORD MOTOR COMPANY	C1233B-51

For 3.3L engine, measure:

Positive Lead	Measurement / Action	Negative Lead
C310B-42	Courtesy of FORD MOTOR COMPANY	C1551B-24

For 3.5L engine, measure:

Positive Lead	Measurement / Action	Negative Lead
C310B-42	Courtesy of FORD MOTOR COMPANY	C175B-24

For 5.0L engine, measure:

Positive Lead	Measurement / Action	Negative Lead
C310B-42	Courtesy of FORD MOTOR COMPANY	C1381B-24

For HEV, measure:

Positive Lead	Measurement / Action	Negative Lead
C310B-42	Courtesy of FORD MOTOR COMPANY	C4237A-17

Are the resistances less than 3 ohms?

Yes

GO to W9

No	REPAIR the circuit. Refer to Wiring Diagrams OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information. GO to W11

W6 CHECK THE PCM (POWERTRAIN CONTROL MODULE) FOR A FAULT STATUS CHANGE

Ignition OFF.

Disconnect PCM C1232B (with 2.7L engine).

Disconnect PCM C1233B (with 3.0L diesel).

Disconnect PCM C1551B (with 3.3L engine).

Disconnect PCM C175B (with 3.5L engine).

Disconnect PCM C1381B (with 5.0L engine).

Disconnect BECM C4237A (HEV).

Ignition ON.

Using a diagnostic scan tool, perform the RCM self-test to retrieve Diagnostic Trouble Codes (DTCs).

Was DTC B11D8:12 retrieved on-demand during self-test?

Yes

GO to W7

No	Refer to PCM GUIDED ROUTINE TESTING Internet Explorer version 11 or greater is required to perform this Pinpoint Test. Refer to PCM GUIDED ROUTINE TESTING Internet Explorer version 11 or greater is required to perform this Pinpoint Test. GO to

W7 CHECK THE BCM (BODY CONTROL MODULE) FOR A FAULT STATUS CHANGE

Ignition OFF.

Prior to reconnecting any previously disconnected component:
- Inspect connector(s) (including any inline connectors) for pushed-out, loose or spread terminals and loose or frayed wire connections at terminals.
- Inspect wire harness for any damage, pinched, cut or pierced wires.
- Repair any concerns found. Refer to Wiring Diagrams OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.

Connect the PCM connector.

Disconnect BCM C2280E.

Ignition ON.

Using a diagnostic scan tool, perform the RCM self-test to retrieve Diagnostic Trouble Codes (DTCs).

Was DTC B11D8:12 retrieved on-demand during self-test?

Yes

GO to W8

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) . GO to W11 GO to W8

W8 CHECK THE EVENT NOTIFICATION SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE

Ignition OFF.

Depower the SRS. REFER to: Supplemental Restraint System (SRS) Depowering .

Disconnect RCM C310A and C310B.

Disconnect PCM C1232B (with 2.7L engine).

Disconnect PCM C1233B (with 3.0L diesel).

Disconnect PCM C1551B (with 3.3L engine).

Disconnect PCM C175B (with 3.5L engine).

Disconnect PCM C1381B (with 5.0L engine).

Disconnect BECM C4237A (HEV).

Repower the SRS. Do not prove out the SRS at this time. REFER to: Supplemental Restraint System (SRS) Repowering .

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2280E-49	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes	REPAIR the circuit. Refer to Wiring Diagrams OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information. GO to W11

GO to W9

W9 CONFIRM THE RCM (RESTRAINTS CONTROL MODULE) FAULT

NOTE: Make sure all SRS electrical connectors and the BCM electrical connector are connected before carrying out the self-test. If not, Diagnostic Trouble Codes (DTCs) will be recorded.

Ignition OFF.

Depower the SRS. REFER to: Supplemental Restraint System (SRS) Depowering .

Prior to reconnecting any previously disconnected components:
- inspect connector(s) (including any inline connectors) for pushed-out, loose or spread terminals and loose or frayed wire connections at terminals.
- inspect wire harness for any damage, pinched, cut or pierced wires.
- repair any concerns found. Refer to Wiring Diagrams OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.

Reconnect all previously disconnected components.

Repower the SRS. Do not prove out the SRS at this time. REFER to: Supplemental Restraint System (SRS) Repowering .

Ignition ON.

Using a diagnostic scan tool, perform the RCM self-test to retrieve Diagnostic Trouble Codes (DTCs).

Was the original DTC retrieved on-demand during self-test?

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 RCM. REFER to: Restraints Control Module (RCM) . GO to W11

No	In the process of diagnosing the fault, the fault condition has become intermittent. Do not install any new SRS components at this time. SRS components should only be installed when directed to do so in the pinpoint test. GO to W10

W10 CHECK FOR AN INTERMITTENT FAULT

Ignition OFF.

Depower the SRS. REFER to: Supplemental Restraint System (SRS) Depowering .

Disconnect BCM C2280E.

Disconnect PCM C1232B (with 2.7L engine).

Disconnect PCM C1233B (with 3.0L diesel).

Disconnect PCM C1551B (with 3.3L engine).

Disconnect PCM C175B (with 3.5L engine).

Disconnect PCM C1381B (with 5.0L engine).

Disconnect BECM C4237A (HEV).

Inspect all disconnected components:
- inspect connector(s) (including any inline connectors) for loose or spread terminals and loose or frayed wire connections at terminals.
- inspect wire harness for any damage, pinched, cut or pierced wires.
- repair any concerns found. Refer to Wiring Diagrams OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.

Reconnect all previously disconnected components.

Repower the SRS. Do not prove out the SRS at this time. REFER to: Supplemental Restraint System (SRS) Repowering .

Ignition ON.

Using a diagnostic scan tool, perform the RCM self-test to retrieve Diagnostic Trouble Codes (DTCs).

Was DTC B11D8:12 or B11D8:14 retrieved on-demand during self-test?

Yes	The fault condition is now present. This fault cannot be cleared until it is corrected and the DTC is no longer retrieved on-demand during the self-test. For DTC B11D8:14, GO to W2 For DTC B11D8:12, GO to W6

CHECK for causes of the intermittent fault. ATTEMPT to recreate the hard fault by flexing the wire harness and cycling the ignition frequently. ACTIVATE other systems in the same wire harness. Do not install any new SRS components at this time. Only install SRS components when directed to do so in the pinpoint test. REPAIR any intermittent concerns found. GO to W11

W11 CHECK FOR ADDITIONAL SRS (SUPPLEMENTAL RESTRAINT SYSTEM) DIAGNOSTIC TROUBLE CODES (DTCS)

Ignition OFF.

Reconnect all previously disconnected components.

If previously directed to depower the SRS, repower the SRS. Do not prove out the SRS at this time. REFER to: Supplemental Restraint System (SRS) Repowering .

Ignition ON.

Using a diagnostic scan tool, carry out RCM self-test.

Are any RCM, OCSM and/or BECMB Diagnostic Trouble Codes (DTCs) retrieved on-demand during self-test?

Yes	Do not clear any Diagnostic Trouble Codes (DTCs) until all Diagnostic Trouble Codes (DTCs) have been resolved. DIAGNOSE and REPAIR the Diagnostic Trouble Codes (DTCs). REFER to the RCM DTC chart In this article.

No	The repair is complete. RETURN the vehicle to the customer.