Pinpoint Test S: B00B5:11, B00B5:12, B00B5:13, B00B5:1D
- Refer to Wiring Diagrams SUPPLEMENTAL RESTRAINT SYSTEM
for schematic and connector information.
Normal Operation and Fault Conditions
The RCM continuously monitors the driver seat position sensor circuits for the following faults:
- Open circuit
- Short to voltage
- Short to ground
- Current out of range
- Faulted driver seat position sensor
If a fault is detected, the RCM stores DTC B00B5:11, B00B5:12, B00B5:13 or B00B5:1D in memory and sends a message to the IPC to illuminate the airbag warning indicator.
DTC Fault Trigger Conditions
DTC Description Fault Trigger Condition RCM B00B5:11 Driver Seat Track Position Restraints Sensor: Circuit Short To Ground A fault is indicated when the RCM senses a short to ground on the driver seat position sensor circuit for more than 6 seconds. RCM B00B5:12 Driver Seat Track Position Restraints Sensor: Circuit Short To Battery A fault is indicated when the RCM senses a short to voltage on the driver seat position sensor circuit for more than 6 seconds. RCM B00B5:13 Driver Seat Track Position Restraints Sensor: Circuit Open A fault is indicated when the RCM senses an open on either driver seat position sensor circuit for more than 6 seconds. RCM B00B5:1D Driver Seat Track Position Restraints Sensor: Circuit Current Out Of Range A fault is indicated when the RCM measures current outside of an acceptable range on the driver seat position sensor circuit for more than 6 seconds. Possible Sources
- Wiring, terminals or connectors
- Driver seat position sensor
- RCM
Visual Inspection and Pre-checks
- Inspect for damaged wiring harness(es)
- Inspect for loose or damaged connectors
- 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.
- S1 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 RCM self-test.
Was DTC B00B5:11, B00B5:12, B00B5:13 and B00B5:1D 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 self-test. For DTC B00B5:11 or B00B5:1D, GO to S2 For DTC B00B5:12, GO to S4 For DTC B00B5:13, GO to S5 No This is an intermittent fault when present as a CMDTC only. GO to S10 -
- S2 CHECK THE DRIVER SEAT POSITION SENSOR DTC (DIAGNOSTIC TROUBLE CODE) FOR A FAULT STATUS CHANGE (SHORT TO GROUND OR CURRENT OUT OF RANGE INDICATED)NOTE: This pinpoint test step attempts to change the fault reported by the RCM by inducing a different fault condition. If the reported fault changes, this indicates the RCM is functioning correctly and is not the source of the fault.
- Ignition OFF.
- Disconnect Driver Seat Position Sensor C356.
- Ignition ON.
- Using a diagnostic scan tool, perform RCM self-test.
- DIAGNOSTIC TIP: When viewing Diagnostic Trouble Codes (DTCs) with the driver seat position sensor disconnected, an open circuit fault is normally retrieved.
Did the on-demand DTC change from B00B5:11 or B00B5:1D to B00B5:13?
Yes GO to S8 No For DTC B00B5:11, GO to S3 For DTC B00B5:1D, GO to S9 - S3 CHECK THE DRIVER SEAT POSITION SENSOR CIRCUIT FOR A SHORT TO GROUND
- Ignition OFF.
- Depower the SRS. REFER to: Supplemental Restraint System (SRS) Depowering .
- Disconnect RCM C310A and C310B.
- Measure:
Positive Lead Measurement / Action Negative Lead C356-2 Ground
Is the resistance greater than 10, 000 ohms?
Yes GO to S9 No REPAIR the circuit. Refer to Wiring Diagrams OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information. GO to S11 - S4 CHECK THE DRIVER SEAT POSITION SENSOR CIRCUIT FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Depower the SRS. REFER to: Supplemental Restraint System (SRS) Depowering .
- Disconnect RCM C310A and C310B.
- Disconnect Driver Side Airbag (Inline) C3051.
- Disconnect Driver Seat Position Sensor C356.
- 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 C356-2 Ground
Is any voltage present?
Yes REPAIR the circuit. Refer to Wiring Diagrams OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information. GO to S11 No GO to S9 - S5 CHECK THE DRIVER SEAT POSITION SENSOR DTC (DIAGNOSTIC TROUBLE CODE) FOR A FAULT STATUS CHANGE (OPEN INDICATED)NOTE: This pinpoint test step attempts to change the fault reported by the RCM by inducing a different fault condition. If the reported fault changes, this indicates the RCM is functioning correctly and is not the source of the fault.
- Ignition OFF.
- Depower the SRS. REFER to: Supplemental Restraint System (SRS) Depowering .
- Disconnect Driver Side Airbag (Inline) C3051.
- Disconnect Driver Seat Position Sensor C356.
- 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 RCM self-test.
- DIAGNOSTIC TIP: When viewing Diagnostic Trouble Codes (DTCs) with the driver seat position sensor circuits shorted together, a short to ground fault is normally retrieved.
Did the on-demand DTC change from B00B5:13 to B00B5:11?
Yes REMOVE the fused jumper wire and GO to S8 No REMOVE the fused jumper wire and GO to S6 - S6 CHECK THE DRIVER SEAT POSITION SENSOR CIRCUIT FOR AN OPEN
- Ignition OFF.
- Depower the SRS. REFER to: Supplemental Restraint System (SRS) Depowering .
- Disconnect RCM C310A and C310B.
Is the resistance less than 0.5 ohm?
Yes GO to S7 No REPAIR the circuit. Refer to Wiring Diagrams OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information. GO to S11 - S7 CHECK THE DRIVER SEAT POSITION SENSOR RETURN CIRCUIT FOR AN OPEN
- Measure:
Positive Lead Measurement / Action Negative Lead C356-1 Ground
Is the resistance less than 3 ohms?
Yes GO to S9 No REPAIR the circuit. Refer to Wiring Diagrams OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information. GO to S11 - Measure:
- S8 CONFIRM THE DRIVER SEAT POSITION SENSOR FAULTNOTE: Make sure all SRS components and the RCM electrical connectors 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 SRS 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 damaged, pinched, cut or pierced wires.
- inspect RCM C310A and C310B Connector Position Assurance (CPA) lever/lock for correct operation.
- repair any concerns found. Refer to Wiring Diagrams OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.
- Connect. Driver Side Airbag (Inline) C3051 (if previously disconnected)
- Connect. Driver Seat Position Sensor C356
- 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 RCM self-test.
Was the original DTC retrieved on-demand during self-test?
Yes INSTALL a new driver seat position sensor. REFER to: Seat Position Sensor . GO to S11 No In the process of diagnosing the fault, the fault condition has become intermittent. Do not install any new SRS components at this time. Install SRS components only when directed to do so in the pinpoint test. GO to S10 - S9 CONFIRM THE RCM (RESTRAINTS CONTROL MODULE) FAULTNOTE: Make sure all SRS components and the RCM electrical connectors 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 SRS 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 damaged, pinched, cut or pierced wires.
- inspect RCM C310A and C310B Connector Position Assurance (CPA) lever/lock for correct operation.
- repair any concerns found. Refer to Wiring Diagrams OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.
- Connect RCM C310A and C310B (if previously disconnected).
- Connect Driver Side Airbag (Inline) C3051 (if previously disconnected).
- Connect Driver Seat Position Sensor C356.
- 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 RCM self-test.
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 S11 No In the process of diagnosing the fault, the fault condition has become intermittent. Do not install any new SRS components at this time. Install SRS components only when directed to do so in the pinpoint test. GO to S10 - S10 CHECK FOR AN INTERMITTENT FAULT
- Ignition OFF.
- Depower the SRS. REFER to: Supplemental Restraint System (SRS) Depowering .
- Disconnect Driver Seat Position Sensor C356.
- Inspect connector(s) (including any inline connectors) for corrosion, loose or spread terminals and loose or frayed wire connections at terminals.
- Inspect wire harness for any damage, pinched, cut or pierced wires.
- Inspect RCM C310A and C310B Connector Position Assurance (CPA) lever/lock for correct operation.
- Repair any concerns found. Refer to Wiring Diagrams OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.
- Connect all previously disconnected components and connectors.
- 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 RCM self-test.
Was DTC B00B5:11, B00B5:12, B00B5:13 and B00B5:1D 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 self-test. For DTC B00B5:11 or B00B5:1D, GO to S2 For DTC B00B5:12, GO to S4 For DTC B00B5:13, GO to S5 No The fault is not present and cannot be recreated at this time. Do not install any new SRS components at this time. Install SRS components only when directed to do so in the pinpoint test. GO to S11 - S11 CHECK FOR ADDITIONAL SRS (SUPPLEMENTAL RESTRAINT SYSTEM) DIAGNOSTIC TROUBLE CODES (DTCS)
- Ignition OFF.
- Depower the SRS. REFER to: Supplemental Restraint System (SRS) Depowering .
- Connect all previously disconnected components and connectors.
- Repower the SRS.
Do not prove out the SRS at this time. REFER to: Supplemental Restraint System (SRS) Repowering .
- Ignition ON.
-
NOTE: When selecting Restraints from the Self Test menu, DTCs are retrieved from the RCM and OCSM.
Using a diagnostic scan tool, perform
Restraints self-test.
Are any RCM or OCSM 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 SRS Diagnostic Trouble Codes (DTCs). REFER to the DTC Chart In this article. No The repair is complete. RETURN the vehicle to the customer.