Pinpoint Test

WARNING: Do not handle, move or change the original horizontal mounting position of the RCM while the 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.

WARNING: Never disassemble or tamper with seat belt deployable components, including pretensioners, load limiters and inflators. Never backprobe deployable device electrical connectors. Tampering or backprobing may cause an accidental deployment and result in personalinjury 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: 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: 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, DTCs may set.

NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.

RETRIEVE RCM DTCs
1. Ignition ON.
2. Using a scan tool, perform RCM self-test to retrieve DTCs .
Was DTC B13B3:11, B13B3:12, B13B3:13 or B13B3:1A 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 self-test.
  - For DTC B13B3:13 or B13B3:1A, GO to 2 .
  - For DTC B13B3:11, GO to 8.
  - For DTC B13B3:12, GO to 10.
2. No
  - This is an intermittent fault when present as a CMDTC only.
  - For DTC B13B3:13 or B13B3:1A, GO to 13.
  - For DTC B13B3:11, GO to 14.
  - For DTC B13B3:12, GO to 15.
CHECK THE SECOND ROW LEFT INFLATABLE SEATBELT DEPLOYMENT CONTROL RESISTANCE (DEPLOY_27_R) PID
1. Using a scan tool, view RCM PIDs .
2. Measure and record the resistance value displayed by the DEPLOY_27_R PID.
Does the PID value read between 1.7 and 2.78 ohms?
1. Yes:
  - GO to 12.
2. No
  - GO to 3 .
CHECK THE SECOND ROW LEFT INFLATABLE SEATBELT DEPLOYMENT CONTROL RESISTANCE (DEPLOY_27_R) PID WHILE CARRYING OUT THE HARNESS TEST
1. While monitoring the DEPLOY_27_R PID, carry out the harness test of the second row left inflatable safety belt circuits and accessible connectors (including any inline connectors), by wiggling connectors and flexing the wire harness frequently.
Does the PID value read between 1.7 and 2.78 ohms while carrying out the harness test?
1. Yes:
  - DEPOWER the SRS and REPAIR the connector, terminals or wire harness as needed.
  - Refer to OEM CONNECTOR REPAIR PROCEDURES for connector information.
  - GO to 17.
2. No
  - For PID value less than 1.7 ohms, GO to 4 .
  - For PID value greater than 2.78 ohms, GO to 6.
CHECK THE SECOND ROW LEFT INFLATABLE SEATBELT DEPLOYMENT CONTROL DTC FOR A FAULT STATUS CHANGE (LOW RESISTANCE INDICATED)
NOTE: This pinpoint test step will attempt to change the fault reported by the RCM by inducing a different fault condition. If the fault reported changes, this indicates the RCM is functioning correctly and is not the source of the fault.
1. Ignition OFF.
2. Depower the SRS. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
3. Vehicles equipped with a 40 percent second row left seat: Disconnect Second Row Left Safety Belt Inflator C3644.
  - Remove 5 screws and the seat track inboard inner and outer covers.
  - Detach the cushion cover front and inboard retainers.
  - Lift the cushion cover and foam pad.
4. Vehicles equipped with a 60 percent second row left seat: Disconnect Second Row Left Safety Belt Inflator C3644.
  - Detach the cushion cover retainers and position the cushion cover aside.
5. Repower the SRS. Do not prove out the SRS at this time. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
6. Ignition ON.
7. Using a scan tool, perform RCM self-test to retrieve DTCs .
8. DIAGNOSTIC TIP: When viewing DTCs with the second row left safety belt inflator disconnected, an open circuit fault is normally retrieved.
Did the on-demand DTC change from B13B3:1A to B13B3:13?
1. Yes:
  - GO to 11.
2. No
  - GO to 5 .

CHECK FOR A SHORT BETWEEN SECOND ROW LEFT SAFETY BELT INFLATOR CIRCUITS

Ignition OFF.
Depower the SRS. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
Disconnect RCM C310A and C310B.

Measure:

Second Row Left Safety Belt Inflator			Second Row Left Safety Belt Inflator

C3644			C3644
Pin	Circuit	Measurement	Pin	Circuit
1	CR123 (GN/VT)		2	RR123 (GY)

Is the resistance greater than 10, 000 ohms?

Yes:
- GO to 12.
No
- REPAIR the circuits.
  Refer to OEM CONNECTOR REPAIR PROCEDURES for connector information.
  
  GO to 17.

CHECK THE SECOND ROW LEFT SAFETY BELT INFLATOR CIRCUITS FOR AN OPEN

Ignition OFF.
Depower the SRS. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
Vehicles equipped with a 40 percent second row left seat: Disconnect Second Row Left Safety Belt Inflator C3644.
- Remove 5 screws and the seat track inboard inner and outer covers.
- Detach the cushion cover front and inboard retainers.
- Lift the cushion cover and foam pad.
Vehicles equipped with a 60 percent second row left seat: Disconnect Second Row Left Safety Belt Inflator C3644.
- Detach the cushion cover retainers and position the cushion cover aside.
Disconnect RCM C310A and C310B.

Measure:

RCM			Second Row Left Safety Belt Inflator

C310A			C3644
Pin	Circuit	Measurement	Pin	Circuit
2	CR123 (GN/VT)		1	CR123 (GN/VT)
1	RR123 (GY)		2	RR123 (GY)

Are the resistances less than 0.5 ohm?

Yes:
- GO to 7 .
No
- REPAIR the circuit(s).
  Refer to OEM CONNECTOR REPAIR PROCEDURES for connector information.
  
  GO to 17.

CHECK THE SECOND ROW LEFT INFLATABLE SEATBELT DEPLOYMENT CONTROL DTC 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 fault reported changes, this indicates the RCM is functioning correctly and is not the source of the fault.

Connect RCM C310A and C310B.

Connect a fused jumper wire:

Second Row Left Safety Belt Inflator			Second Row Left Safety Belt Inflator

C3644			C3644
Pin	Circuit	Measurement	Pin	Circuit
1	CR123 (GN/VT)		2	RR123 (GY)

Repower the SRS. Do not prove out the SRS at this time. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
Ignition ON.
Using a scan tool, perform RCM self-test to retrieve DTCs .
DIAGNOSTIC TIP: When viewing DTCs with the second row left safety belt inflator circuits shorted together, a low resistance fault is normally retrieved.

Did the on-demand DTC change from B13B3:13 to B13B3:1A?

Yes:
- REMOVE the fused jumper wire and GO to 11.
No
- REMOVE the fused jumper wire and GO to 12.

CHECK THE SECOND ROW LEFT INFLATABLE SEATBELT DEPLOYMENT CONTROL DTC FOR A FAULT STATUS CHANGE (SHORT TO GROUND INDICATED)
NOTE: This pinpoint test step attempts to change the fault reported by the RCM by inducing a different fault condition. If the fault reported changes, this indicates the RCM is functioning correctly and is not the source of the fault.
1. Ignition OFF.
2. Depower the SRS. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
3. Vehicles equipped with a 40 percent second row left seat: Disconnect Second Row Left Safety Belt Inflator C3644.
  - Remove 5 screws and the seat track inboard inner and outer covers.
  - Detach the cushion cover front and inboard retainers.
  - Lift the cushion cover and foam pad.
4. Vehicles equipped with a 60 percent second row left seat: Disconnect Second Row Left Safety Belt Inflator C3644.
  - Detach the cushion cover retainers and position the cushion cover aside.
5. Repower the SRS. Do not prove out the SRS at this time. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
6. Ignition ON.
7. Using a scan tool, perform RCM self-test to retrieve DTCs .
8. DIAGNOSTIC TIP: When viewing DTCs with the second row left safety belt inflator disconnected, an open circuit fault is normally retrieved.
Did the on-demand DTC change from B13B3:11 to B13B3:13?
1. Yes:
  - GO to 11.
2. No
  - GO to 9 .

CHECK THE SECOND ROW LEFT SAFETY BELT INFLATOR CIRCUITS FOR A SHORT TO GROUND

Ignition OFF.
Depower the SRS. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
Disconnect RCM C310A and C310B.

Measure:

Second Row Left Safety Belt Inflator			Ground

C3644			Ground
Pin	Circuit	Measurement	Pin	Circuit
1	CR123 (GN/VT)		-	Ground
2	RR123 (GY)		-	Ground

Are the resistances greater than 10, 000 ohms?

Yes:
- GO to 12.
No
- REPAIR the circuit(s).
  Refer to OEM CONNECTOR REPAIR PROCEDURES for connector information.
  
  GO to 17.

CHECK THE SECOND ROW LEFT SAFETY BELT INFLATOR CIRCUITS FOR A SHORT TO VOLTAGE

Ignition OFF.
Depower the SRS. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
Vehicles equipped with a 40 percent second row left seat: Disconnect Second Row Left Safety Belt Inflator C3644.
- Remove 5 screws and the seat track inboard inner and outer covers.
- Detach the cushion cover front and inboard retainers.
- Lift the cushion cover and foam pad.
Vehicles equipped with a 60 percent second row left seat: Disconnect Second Row Left Safety Belt Inflator C3644.
- Detach the cushion cover retainers and position the cushion cover aside.
Disconnect 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 - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
Ignition ON.

Measure:

Second Row Left Safety Belt Inflator			Ground

C3644			Ground
Pin	Circuit	Measurement	Pin	Circuit
1	CR123 (GN/VT)		-	Ground
2	RR123 (GY)		-	Ground

Is any voltage present?

Yes:
- REPAIR the circuit(s).
  Refer to OEM CONNECTOR REPAIR PROCEDURES for connector information.
  
  GO to 17.
No
- GO to 12.

CONFIRM THE SECOND ROW LEFT SAFETY BELT INFLATOR FAULT
NOTE: Make sure all SRS components and the RCM electrical connectors are connected before carrying out the self-test. If not, DTCs will be recorded.
1. Ignition OFF.
2. Depower the SRS. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
3. 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.
  - inspect RCM C310A and C310B CPA lever/lock for correct operation. REFER to Restraints Control Module (RCM) .
  - repair any concerns found.
    Refer to OEM CONNECTOR REPAIR PROCEDURES for connector information.
4. Connect Second Row Left Safety Belt Inflator C3644.
5. Connect RCM C310A and C310B.
6. Repower the SRS. Do not prove out the SRS at this time. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
7. Ignition ON.
8. Using a scan tool, perform RCM self-test to retrieve DTCs .
Was the original DTC retrieved on-demand during self-test?
1. Yes:
  - INSTALL a new second row left safety belt inflator. REFER to SAFETY BELT INFLATOR - 2ND ROW, 40 PERCENT SEAT or REFER to SAFETY BELT BUCKLE AND INFLATOR - 2ND ROW, 60 PERCENT SEAT . GO to 17.
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 .
  - For DTC B13B3:13 or B13B3:1A, GO to 13.
  - For DTC B13B3:11, GO to 14.
  - For DTC B13B3:12, GO to 15.
CONFIRM THE RCM FAULT
NOTE: Make sure all SRS components and the RCM electrical connectors are connected before carrying out the self-test. If not, DTCs will be recorded.
1. Ignition OFF.
2. Depower the SRS. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
3. 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.
  - inspect RCM C310A and C310B CPA lever/lock for correct operation. REFER to Restraints Control Module (RCM) .
  - repair any concerns found.
    Refer to OEM CONNECTOR REPAIR PROCEDURES for connector information.
4. Connect Second Row Left Safety Belt Inflator C3644 (if previously disconnected).
5. Connect RCM C310A and C310B (if previously disconnected).
6. Repower the SRS. Do not prove out the SRS at this time. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
7. Ignition ON.
8. Using a scan tool, perform RCM self-test to retrieve DTCs .
Was the original DTC retrieved on-demand during self-test?
1. Yes:
  - CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, discontinue this test and follow TSB instructions. If no TSBs address this concern, INSTALL a new RCM. REFER to Restraints Control Module (RCM) . GO to 17.
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 .
  - For DTC B13B3:13 or B13B3:1A, GO to 13 .
  - For DTC B13B3:11, GO to 14.
  - For DTC B13B3:12, GO to 15.
CHECK THE SECOND ROW LEFT INFLATABLE SEATBELT DEPLOYMENT CONTROL RESISTANCE (DEPLOY_27_R) PID FOR AN INTERMITTENT LOW RESISTANCE OR OPEN CIRCUIT FAULT
1. Using a scan tool, view RCM PIDs .
2. While monitoring the DEPLOY_27_R PID, attempt to recreate the fault by wiggling connectors (including any inline connectors) and flexing the wire harness frequently.
Does the PID value read between 1.7 and 2.78 ohms?
1. Yes:
  - The fault is not present and cannot be recreated at this time. 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 16.
2. No
  - DEPOWER the SRS and REPAIR as necessary.
  - Refer to OEM CONNECTOR REPAIR PROCEDURES for connector information.
  - GO to 17.
CHECK THE SECOND ROW LEFT INFLATABLE SEATBELT DEPLOYMENT CONTROL CIRCUITS FOR AN INTERMITTENT SHORT TO GROUND FAULT
1. Attempt to recreate the fault by wiggling connectors (including any inline connectors) and flexing the wire harness frequently.
2. Using a scan tool, perform RCM self-test to retrieve DTCs .
Was DTC B13B3:11 retrieved on-demand during self-test?
1. Yes:
  - DEPOWER the SRS and REPAIR as necessary.
  - Refer to OEM CONNECTOR REPAIR PROCEDURES for connector information.
  - GO to 17.
2. No
  - The fault is not present and cannot be recreated at this time. 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 16.
CHECK THE SECOND ROW LEFT INFLATABLE SEATBELT DEPLOYMENT CONTROL CIRCUITS FOR AN INTERMITTENT SHORT TO VOLTAGE FAULT
1. Ignition OFF.
2. Depower the SRS. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
3. Vehicles equipped with a 40 percent second row left seat: Disconnect Second Row Left Safety Belt Inflator C3644.
  - Remove 5 screws and the seat track inboard inner and outer covers.
  - Detach the cushion cover front and inboard retainers.
  - Lift the cushion cover and foam pad.
4. Vehicles equipped with a 60 percent second row left seat: Disconnect Second Row Left Safety Belt Inflator C3644.
  - Detach the cushion cover retainers and position the cushion cover aside.
5. Repower the SRS. Do not prove out the SRS at this time. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
6. Ignition ON.
7. Attempt to recreate the fault by wiggling connectors (including any inline connectors) and flexing the wire harness frequently.
8. Using a scan tool, perform RCM self-test to retrieve DTCs .
Was DTC B13B3:12 retrieved on-demand during self-test?
1. Yes:
  - DEPOWER the SRS and REPAIR as necessary.
  - Refer to OEM CONNECTOR REPAIR PROCEDURES for connector information.
  - GO to 17.
2. No
  - The fault is not present and cannot be recreated at this time. 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 16 .
CHECK THE HARNESS AND CONNECTORS
1. Ignition OFF.
2. Depower the SRS. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
3. Vehicles equipped with a 40 percent second row left seat: Disconnect Second Row Left Safety Belt Inflator C3644.
  - Remove 5 screws and the seat track inboard inner and outer covers.
  - Detach the cushion cover front and inboard retainers.
  - Lift the cushion cover and foam pad.
  - 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.
4. Vehicles equipped with a 60 percent second row left seat: Disconnect Second Row Left Safety Belt Inflator C3644.
  - Detach the cushion cover retainers and position the cushion cover aside.
  - 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.
5. Inspect RCM C310A and C310B CPA lever/lock for correct operation. REFER to Restraints Control Module (RCM) .
Were any concerns found?
1. Yes:
  - REPAIR as necessary.
  - Refer to OEM CONNECTOR REPAIR PROCEDURES for connector information.
  - GO to 17 .
2. No
  - The fault is not present and cannot be recreated at this time. 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 17 .
CHECK FOR ADDITIONAL SRS DTCs
1. Ignition OFF.
  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.
2. Reconnect all SRS components (if previously disconnected).
3. 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 - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
4. Ignition ON.
5. Using a scan tool, perform Restraints self-test to retrieve DTCs .
  NOTE: When selecting Restraints from the Self Test menu, DTCs are retrieved from the RCM and OCSM.
Are any RCM and/or OCSM DTCs retrieved on-demand during self-test?
1. Yes:
  - Do not clear any DTCs until all DTCs have been resolved. REFER to DTC Chart: Restraint Control Module (RCM) or REFER to DTC Chart: Occupant Classification System Module (OCSM) for pinpoint test direction.
2. No
  - CLEAR all RCM and OCSM CMDTCs . PROVE OUT the SRS. The repair is complete. RETURN the vehicle to the customer.