Pinpoint Test A: The Driver Power Seat Is Inoperative (With Power Recliner): Testing

WARNING: This page is about a different car, the 2005 Mercury Montego, 2005 Ford Freestyle, and 2005 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.

A1 CHECK CIRCUIT 566 (DG) FOR VOLTAGE
WARNING: The restraint system diagnostic tool is for restraint system service only. Remove from vehicle prior to road use. Failure to remove could result in injury and possible violation of vehicle safety standards.

NOTE: If a seat equipped with a supplemental restraint system (SRS) component is being serviced, the SRS must be depowered. Refer to SUPPLEMENTAL RESTRAINT SYSTEM .

NOTE: The air bag warning lamp illuminates when the RCM fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a supplemental restraint system (SRS) fault.

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

NOTE: The memory seat track motor electrical connectors will connect to a seat track without the memory option. When installing a new seat track, make sure the correct memory or non-memory seat track is being installed.
- Key in OFF position.
- For vehicles equipped with seat side air bags, carry out the following:
  - Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering in the General Procedures portion of SUPPLEMENTAL RESTRAINT SYSTEM .
  - Disconnect driver seat side air bag C3226.
  - Connect restraint system diagnostic tool 418-133 to driver seat side air bag C3226.
  - Connect the battery ground cable.
- Disconnect: Driver Seat Control Switch C369.
- Measure the voltage between driver seat control switch C369 pin 5, circuit 566 (DG), harness side and ground.
  
  Fig 1: Measuring Voltage Between Driver Seat Control Switch C369 Pin 5 Circuit 566 (DG)
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
Result/ Action to Take
- Yes : GO to A2.
- No : REPAIR the circuit. TEST the system for normal operation.
  For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C3226. CONNECT driver seat side air bag module C3226. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .
A2 CHECK CIRCUIT 1205 (BK) FOR AN OPEN
- Measure the resistance between driver seat control switch C369 pin 3, circuit 1205 (BK), harness side and ground.
  
  Fig 2: Measuring Resistance Between Driver Seat Control Switch C369 Pin 3 Circuit 1205 (BK)
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
- Yes : INSTALL a new driver seat control switch. TEST the system for normal operation.
  For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C3226. CONNECT driver seat side air bag module C3226. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .
- No : REPAIR the circuit. TEST the system for normal operation.
  For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C3226. CONNECT driver seat side air bag module C3226. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .