Pinpoint Test Ag: DTC B19A6

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: The air bag warning indicator illuminates when the correct Restraints Control Module (RCM) fuse is removed and the ignition is ON.

NOTE: The Supplemental Restraint System (SRS) must be fully operational and free of faults before releasing the vehicle to the customer.

AG1 CHECK BACKREST TED BLOWER SPEED CONTROL CIRCUIT FOR A SHORT TO GROUND
- Ignition OFF.
- Depower the SRS. Refer to the General Procedures portion of SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING article .
- Disconnect: Passenger Seat Side Air Bag C3133.
- Disconnect: Passenger Safety Belt Buckle Pretensioner C3066.
- Disconnect: DCSM C3265c.
- Disconnect: Backrest TED C3039.
- Measure the resistance between DCSM C3265c-4, circuit VHS21 (BU/WH), harness side and ground.
  
  Fig 1: Measuring Resistance Between DCSM C3265c-4, Circuit VHS21 (BU/WH), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10, 000 ohms?
- Yes : GO to AG2.
- No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
  DISCONNECT the battery ground cable.
  
  CONNECT passenger safety belt buckle pretensioner C3066.
  
  CONNECT passenger seat side air bag module C3133. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.
AG2 CHECK BACKREST TED BLOWER SPEED CONTROL CIRCUIT AND BLOWER GROUND CIRCUIT FOR A SHORT TOGETHER
- Measure the resistance between DCSM C3265c-4, circuit VHS21 (BU/WH), harness side and C3265c-7, circuit RHS08 (VT/WH), harness side.
  
  Fig 2: Measuring Resistance Between DCSM C3265c-4, Circuit VHS21 (BU/WH) And C3265c-7, Circuit RHS08 (VT/WH)
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10, 000 ohms?
- Yes : INSTALL a new backrest TED. REFER to SEAT BACKREST THERMO-ELECTRIC DEVICE . CLEAR the DTCs. REPEAT the self-test.
  DISCONNECT the battery ground cable.
  
  CONNECT passenger safety belt buckle pretensioner C3066.
  
  CONNECT passenger seat side air bag module C3133. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.
- No : REPAIR the circuits. CLEAR the DTCs. REPEAT the self-test.
  DISCONNECT the battery ground cable.
  
  CONNECT passenger safety belt buckle pretensioner C3066.
  
  CONNECT passenger seat side air bag module C3133.
  
  REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.