Pinpoint Test A : U0001:88, U1A14:55

WARNING: Do not handle, move or change the original horizontal mounting position of the Restraints Control Module (RCM) while the Restraints Control Module (RCM) is connected and the ignition switch is ON. Failure to follow this instruction may result in the accidental deployment of the Safety Canopy® and cause serious personal injury or death.

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 CHECK THE COMMUNICATION NETWORK
- REFER to: SAFETY BELT AND SUPPLEMENTAL RESTRAINT SYSTEM (SRS) HEALTH AND SAFETY PRECAUTIONS .
- Ignition ON.
- Using a diagnostic scan tool, perform a network test.
Do any modules other than the RCM fail the network test?
1. Yes: Refer to
  REFER to: Communications Network ( COMMUNICATIONS NETWORK ).
  
  to diagnose the High Speed Controller Area Network (HS-CAN) fault.
2. No: If only the RCM failed the network test, GO to A2 If all modules passed the network test, including the RCM, the fault has become intermittent. GO to A4

A2 CHECK THE HIGH SPEED CONTROLLER AREA NETWORK (HS-CAN) CIRCUIT AT THE RCM (RESTRAINTS CONTROL MODULE)

Ignition OFF.
Depower the SRS.
REFER to: Supplemental Restraint System (SRS) Depowering and Repowering .
Disconnect RCM C310A and C310B.
Measure:

Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C310A-19	Ω	C251-6
C310A-20	Ω	C251-14

Are the resistances less than 3 ohms?

Yes: GO to A3
No: REPAIR the circuit. GO to A5

A3 CONFIRM THE RCM (RESTRAINTS CONTROL MODULE) FAULT
NOTE: 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.
- 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.
    REFER to: Restraints Control Module (RCM) .
  - repair any concerns found.
    Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.
- Connect RCM C310A and C310B.
- Repower the SRS. Do not prove out the SRS at this time.
  REFER to: Supplemental Restraint System (SRS) Depowering and Repowering .
- Ignition ON.
- Using a diagnostic scan tool, perform RCM self-test.
Was the original DTC retrieved on-dem and 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 RCM.
  REFER to: Restraints Control Module (RCM) .
  
  GO to A5
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. Install SRS components only when directed to do so in the pinpoint test. GO to A4
A4 CHECK THE HARNESS AND CONNECTORS
- Ignition OFF.
- Depower the SRS.
  REFER to: Supplemental Restraint System (SRS) Depowering and Repowering .
- Disconnect RCM C310A and C310B.
- Inspect RCM C310A and C310B Connector Position Assurance (CPA) lever/lock for correct operation.
  REFER to: Restraints Control Module (RCM) .
- Inspect RCM C310A and C310B for pushed-out, loose or spread terminals and loose or frayed wire connections at terminals.
- Inspect wire harnesses for any damaged, pinched, cut or pierced wires.
Were any concerns found?
1. Yes: REPAIR as necessary.
  Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.
  
  GO to A5
2. 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 A5
A5 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.
- Reconnect all SRS components (if previously disconnected).
- 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.
- Using a diagnostic scan tool, perform Restraints self-test.
Are any RCM and/or OCSM Diagnostic Trouble Codes (DTCs) retrieved on-dem and during self-test?
1. Yes: Do not clear any Diagnostic Trouble Codes (DTCs) until all Diagnostic Trouble Codes (DTCs) have been resolved. Refer to RCM DTC CHART or Refer to OCSM DTC CHART for pinpoint test direction.
2. No: CLEAR all RCM and OCSM Continuous Memory Diagnostic Trouble Codes (CMDTCs). PROVE OUT the SRS. The repair is complete. RETURN the vehicle to the customer.