PINPOINT TEST AA: DTCs B1113 AND B111B

WARNING: This page is about a different car, the 2013 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: When taking measurements at Dual Climate Controlled Seat Module (DCSM) harness connectors, do not insert the electrical probes into the female connector pins. Inserting the probes into connector pins can cause intermittent or open electrical connections after reassembly resulting in Diagnostic Trouble Codes (DTCs) and system failure. Touching the tip of these connector pins is recommended instead.

NOTE: If a seat equipped with a seat mounted side air bag is being repaired, the Supplemental Restraint System (SRS) must be depowered. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .

NOTE: The air bag warning lamp illuminates when the Restraints Control Module (RCM) fuse is removed and the ignition switch is ON. This is normal operation and does not indicate an SRS fault.

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

AA1 CHECK THE TED CIRCUITS FOR A SHORT TO GROUND

Ignition OFF.
Depower the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
Disconnect: Passenger Seat Side Air Bag Module C339.
Disconnect: DCSM C3265A.

Measure the resistance between DCSM C3265A, harness side and ground using the following chart:

DCSM Connector	Circuit
C3265A-A	CHS07 (GY/BU)
C3265A-B	RHS07 (BU)
C3265A-C	CHS06 (BU/BN)
C3265A-D	RHS06 (WH)

Fig 1: Measuring Resistance Between DCSM C3265A Pins, Harness Side And Ground

Courtesy of FORD MOTOR CO.

Are the resistances greater than 10, 000 ohms?

Yes : GO to AA2.
No : If the resistance between C3265A-A and/or C3265A-B to ground is not greater than 10, 000 ohms, GO to AA6. If the resistance between C3265A-C and/or C3265A-D to ground is not greater than 10, 000 ohms, GO to AA7.

AA2 CHECK THE TED CIRCUITS FOR A SHORT TO VOLTAGE

WARNING: Make sure no one is in the vehicle and there is nothing blocking or placed in front of any airbag when the battery is connected. Failure to follow these instructions may result in serious personal injury in the event of an accidental deployment.

Connect the battery ground cable. Refer to BATTERY, BATTERY MOUNTING & BATTERY CABLES .
Ignition ON.

Measure the voltage between DCSM C3265A, harness side and ground using the following chart:

DCSM Connector	Circuit
C3265A-A	CHS07 (GY/BU)
C3265A-B	RHS07 (BU)
C3265A-C	CHS06 (BU/BN)
C3265A-D	RHS06 (WH)

Fig 2: Measuring Voltage Between DCSM C3265A Pins And Ground

Courtesy of FORD MOTOR CO.

Is any voltage present on either circuit?

Yes : If voltage is present at C3265A-A and/or C3265A-B, GO to AA8.
If voltage is present at C3265A-C and/or C3265A-D, GO to AA9.
No : GO to AA3.

AA3 CHECK THE TED AND WIRING RESISTANCE
- Ignition OFF.
- Measure the resistance between:
  - DCSM C3265A-A, circuit CHS07 (GY/BU), harness side and DCSM C3265A-B, circuit RHS07 (BU), harness side.
  - DCSM C3265A-C, circuit CHS06 (BU/BN), harness side and C3265A-D, circuit RHS06 (WH), harness side.
    
    Fig 3: Checking TED And Wiring Resistance
    Courtesy of FORD MOTOR CO.
- Are the resistances between 0.9 and 10 ohms?
- Yes : INSTALL a new DCSM. REFER to DUAL CLIMATE CONTROLLED SEAT MODULE (DCSM) in this information. CLEAR the DTCs. REPEAT the self-test.
  DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C339. REPOWER the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- No : If the resistance is between DCSM C3265A-A and C3265A-B is not between 0.9 and 10 ohms, GO to AA5.
  If the resistance is between DCSM C3265A-C and C3265A-D is not between 0.9 and 10 ohms, GO to AA4.
AA4 CHECK THE BACKREST TED RESISTANCE
- Disconnect: Backrest TED C3039.
- Measure the resistance between backrest TED C3039 pins 1 and 3, component side.
  
  Fig 4: Checking The Seat's Backrest And/Or Cushion TED Resistances
  Courtesy of FORD MOTOR CO.
- Is the resistance between 0.9 and 10 ohms?
- Yes : REPAIR the circuit(s). CLEAR the DTCs. REPEAT the self-test.
  DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C339. REPOWER the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- No : INSTALL a new backrest TED. REFER to SEAT BACKREST THERMO-ELECTRIC DEVICE in this information. CLEAR the DTCs. REPEAT the self-test.
  DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C339. REPOWER the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
AA5 CHECK THE CUSHION TED RESISTANCE
- Disconnect: Cushion TED C3040.
- Measure the resistance between cushion TED C3040 pins 1 and 3, component side.
  
  Fig 5: Checking The Seat's Backrest And/Or Cushion TED Resistances
  Courtesy of FORD MOTOR CO.
- Is the resistance between 0.9 and 10 ohms?
- Yes : REPAIR the circuit(s). CLEAR the DTCs. REPEAT the self-test.
  DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C339. REPOWER the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- No : INSTALL a new cushion TED. REFER to SEAT CUSHION THERMO-ELECTRIC DEVICE in this information. CLEAR the DTCs. REPEAT the self-test.
  DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C339. REPOWER the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
AA6 CHECK THE CUSHION TED CIRCUITS FOR A SHORT TO GROUND
- Disconnect: Cushion TED C3040.
- Measure the resistance between:
  - DCSM C3265A-A, circuit CHS07 (GY/BU), harness side and ground.
  - DCSM C3265A-B, circuit RHS07 (BU), harness side and ground.
    
    Fig 6: Checking Cushion TED Circuits For Short To Ground
    Courtesy of FORD MOTOR CO.
- Are the resistances greater than 10, 000 ohms?
- Yes : INSTALL a new cushion TED. REFER to SEAT CUSHION THERMO-ELECTRIC DEVICE in this information. CLEAR the DTCs. REPEAT the self-test.
  DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C339. REPOWER the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- No : REPAIR the circuit(s). CLEAR the DTCs. REPEAT the self-test.
  DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C339. REPOWER the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
AA7 CHECK THE BACKREST TED CIRCUITS FOR A SHORT TO GROUND
- Disconnect: Backrest TED C3039.
- Measure the resistance between:
  - DCSM C3265A-C, circuit CHS06 (BU/BN), harness side and ground.
  - DCSM C3265A-D, circuit RHS06 (WH), harness side and ground.
    
    Fig 7: Checking Backrest TED Circuits For Short To Ground
    Courtesy of FORD MOTOR CO.
- Are the resistances greater than 10, 000 ohms?
- Yes : INSTALL a new backrest TED. REFER to SEAT BACKREST THERMO-ELECTRIC DEVICE in this information. CLEAR the DTCs. REPEAT the self-test.
  DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C339. REPOWER the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- No : REPAIR the circuit(s). CLEAR the DTCs. REPEAT the self-test.
  DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C339. REPOWER the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
AA8 CHECK THE CUSHION TED CIRCUITS FOR A SHORT TO VOLTAGE
- Disconnect: Cushion TED C3040.
- Ignition ON.
- Measure the voltage between:
  - DCSM C3265A-A, circuit CHS07 (GY/BU), harness side and ground.
  - DCSM C3265A-B, circuit RHS07 (BU), harness side and ground.
    
    Fig 8: Checking Cushion TED Circuits For Short To Voltage
    Courtesy of FORD MOTOR CO.
- Is any voltage present on either circuit?
- Yes : REPAIR the circuit(s). CLEAR the DTCs. REPEAT the self-test.
  DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C339. REPOWER the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- No : INSTALL a new cushion TED. REFER to SEAT CUSHION THERMO-ELECTRIC DEVICE in this information. CLEAR the DTCs. REPEAT the self-test.
  DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C339. REPOWER the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
AA9 CHECK THE BACKREST TED CIRCUITS FOR A SHORT TO VOLTAGE
- Disconnect: Backrest TED C3039.
- Ignition ON.
- Measure the voltage between:
  - DCSM C3265A-C, circuit CHS06 (BU/BN), harness side and ground.
  - DCSM C3265A-D, circuit RHS06 (WH), harness side and ground.
    
    Fig 9: Checking Backrest TED Circuits For Short To Voltage
    Courtesy of FORD MOTOR CO.
- Is any voltage present on either circuit?
- Yes : REPAIR the circuit(s). CLEAR the DTCs. REPEAT the self-test.
  DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C339. REPOWER the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- No : INSTALL a new backrest TED. REFER to SEAT BACKREST THERMO-ELECTRIC DEVICE in this information. CLEAR the DTCs. REPEAT the self-test.
  DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C339. REPOWER the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .