Pinpoint Test TT: B00C2:11 And B00C2:12

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: SRS components should only be disconnected or reconnected when instructed to do so within a pinpoint test step. Failure to follow this instruction may result in incorrect diagnosis of the SRS .

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 Catalog Advantage™ or equivalent 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.

A1 RETRIEVE OCSM (OCCUPANT CLASSIFICATION SYSTEM MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
- WARNING: Before beginning any service procedure in this service information, refer to Safety Warnings in GENERAL INFORMATION . Failure to follow this instruction may result in serious personal injury.
  
  REFER to: SAFETY BELT AND SUPPLEMENTAL RESTRAINT SYSTEM (SRS) HEALTH AND SAFETY PRECAUTIONS .
- Ignition ON.
- Enter the following diagnostic mode: Self Test - OCSM .
Was DTC B00C2:11 or B00C2:12 retrieved on-demand during self-test?
1. 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 B00C2:11, GO to A2 For DTC B00C2:12, GO to A4
2. No : This is an intermittent fault when present as a Continuous Memory Diagnostic Trouble Code (CMDTC) only. GO to A6
A2 CHECK THE BELT TENSION SENSOR (BTS)
WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.

NOTE: This pinpoint test step attempts to change the fault reported by the OCSM by inducing a different fault condition. If the fault reported changes, this indicates the OCSM is functioning correctly and is not the source of the fault.
- Ignition OFF.
- Disconnect Passenger Safety Belt Tension Sensor (BTS) C3238 .
  - Fold the RH rear seat cushion forward to access the Passenger Safety Belt Tension Sensor (BTS) connector.
- Enter the following diagnostic mode: Self Test - OCSM .
- DIAGNOSTIC TIP: When viewing Diagnostic Trouble Codes (DTCs) with the Belt Tension Sensor (BTS) disconnected, an open circuit fault is normally retrieved.
Was DTC B00C2:11 retrieved on-demand during self-test?
1. Yes : GO to A3
2. No : INSTALL a new passenger safety belt retractor pretensioner assembly.
  REFER to: SAFETY BELT RETRACTOR AND PRETENSIONER - VEHICLES WITH: FIRST AND SECOND ROW SUPPLEMENTAL RESTRAINT SYSTEM (SRS) WITH DRIVER KNEE AIRBAG .
  
  GO to A7

A3 CHECK THE BELT TENSION SENSOR (BTS) VREF CIRCUIT FOR A SHORT TO GROUND

WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.

Ignition OFF.
Disconnect OCSM C3159 .

Measure:

Positive Lead	Measurement/Action	Negative Lead
C3238-1		Ground

Is the resistance greater than 10, 000 ohms?

Yes : GO to A5
No : REPAIR the circuit.
Refer to OEM CONNECTOR REPAIR PROCEDURES EXCEPT ELECTRIC--> for schematic and connector information.

GO to A7

A4 CHECK THE BELT TENSION SENSOR (BTS) VREF CIRCUIT FOR A SHORT TO VOLTAGE

Ignition OFF.
Depower the SRS .
REFER to: SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
Disconnect Passenger Seat Side Air Bag Module (Inline) C3007B .
Disconnect Passenger Safety Belt Tension Sensor (BTS) C3238 .
- Fold the RH rear seat cushion forward to access the Passenger Safety Belt Tension Sensor (BTS) connector.
Disconnect OCSM C3159 .
Repower the SRS . Do not prove out the SRS at this time.
REFER to: SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
Ignition ON.

Measure:

Positive Lead	Measurement/Action	Negative Lead
C3238-1		Ground

Is any voltage present?

Yes : REPAIR the circuit.
Refer to OEM CONNECTOR REPAIR PROCEDURES EXCEPT ELECTRIC--> for schematic and connector information.

GO to A7
No : GO to A5

A5 CONFIRM THE OCSM (OCCUPANT CLASSIFICATION SYSTEM MODULE) FAULT
WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.

NOTE: Make sure all OCS system components, restraint system sensor electrical connectors and the RCM electrical connectors are connected before carrying out the self-test. If not, Diagnostic Trouble Codes (DTCs) will be recorded.
- Ignition OFF.
- 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 damage, pinched, cut or pierced wires.
  - repair any concerns found.
    Refer to OEM CONNECTOR REPAIR PROCEDURES EXCEPT ELECTRIC--> for schematic and connector information.
- Connect OCSM C3159 (if previously disconnected).
- Connect Passenger Safety Belt Tension Sensor (BTS) C3238 .
- If previously directed to disconnect Passenger Seat Side Air Bag Module (Inline) C3007B , depower the SRS .
  REFER to: SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Connect Passenger Seat Side Air Bag Module (Inline) C3007B (if previously disconnected).
  - Tighten to 1 Nm (9 lb-in).
- 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) DEPOWERING AND REPOWERING .
- Ignition ON.
- Enter the following diagnostic mode: Self Test - OCSM .
Was the original DTC retrieved on-demand during self-test?
1. 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 OCS sensor.
  REFER to: OCCUPANT CLASSIFICATION SYSTEM (OCS) SENSOR - VEHICLES WITH: FIRST AND SECOND ROW SUPPLEMENTAL RESTRAINT SYSTEM (SRS) .
  
  GO to A7
2. 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 A6
A6 CHECK FOR AN INTERMITTENT FAULT
WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.
- Ignition OFF.
- Disconnect Passenger Safety Belt Tension Sensor (BTS) C3238 .
  - fold the RH rear seat cushion forward to access the Passenger Safety Belt Tension Sensor (BTS) connector.
  - 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 OEM CONNECTOR REPAIR PROCEDURES EXCEPT ELECTRIC--> for schematic and connector information.
- Connect Passenger Safety Belt Tension Sensor (BTS) C3238 .
- Ignition ON.
- Using a scan tool, perform OCSM self-test to retrieve Diagnostic Trouble Codes (DTCs).
Was DTC B00C2:11 or B00C2:12 retrieved on-demand during self-test?
1. 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 B00C2:11, GO to A2 For DTC B00C2:12, GO to A4
2. No : 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 system 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 A7
A7 CHECK FOR ADDITIONAL SRS (SUPPLEMENTAL RESTRAINT SYSTEM) DIAGNOSTIC TROUBLE CODES (DTCS)
WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.
- Ignition OFF.
- If previously directed to disconnect Passenger Seat Side Air Bag Module (Inline) C3007B , depower the SRS .
  REFER to: SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Reconnect all SRS components (if previously disconnected).
  - For Passenger Seat Side Air Bag Module (Inline) C3007B , tighten to 1 Nm (9 lb-in).
- 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) DEPOWERING AND REPOWERING .
- Ignition ON.
- Enter the following diagnostic mode: Self Test - Restraints.
  NOTE: When selecting Restraints from the Self Test menu, Diagnostic Trouble Codes (DTCs) are retrieved from the RCM and OCSM .
Are any RCM and/or OCSM Diagnostic Trouble Codes (DTCs) retrieved?
1. Yes : Do not clear any Diagnostic Trouble Codes (DTCs) until all Diagnostic Trouble Codes (DTCs) have been resolved. Refer to DTC CHART: RCM or Refer to DTC CHART: OCSM for pinpoint test direction.
2. No : CLEAR all RCM and OCSM Diagnostic Trouble Codes (DTCs). PROVE OUT the SRS . The repair is complete. RETURN the vehicle to the customer.