Pinpoint Test A: The Power Seat Is Inoperative - Driver

WARNING: This page is about a different car, the 2004 Mercury Monterey and 2004 Ford Freestar. 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 seat mounted side air bag and/or a safety belt pretensioner (if equipped) system is being serviced, the supplemental restraint system (SRS) must be disabled. Refer to AIR BAG RESTRAINT SYSTEMS .

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.
- Key in OFF position.
- Disable the SRS. Refer to Supplemental Restraint System (SRS) Disabling and Activating in AIR BAG RESTRAINT SYSTEMS .
- Disconnect: Driver Safety Belt Buckle Pretensioner C323.
- Connect: Restraint System Diagnostic Tool 501-097 to the Driver Safety Belt Buckle Pretensioner C323.
- Disconnect: Driver Seat Side Air Bag C367 (Vehicles With Seat Side Air Bags Only).
- Connect: Restraint System Diagnostic Tool 418-133 to the Driver Seat Side Air Bag C367 (Vehicles With Seat Side Air Bags Only).
  WARNING: Be sure that nobody is in the vehicle and that there is nothing blocking or set in front of any air bag module when the battery ground cable is connected.
- Connect the battery ground cable.
- Disconnect: Driver Seat Control Switch C360.
- Measure the voltage between driver seat control switch C360-H, circuit 566 (DG), harness side and ground.
- Is the voltage greater than 10 volts?
Yes

GO to A2

No

REPAIR the circuit. TEST the system for normal operation.

DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from the driver safety belt buckle pretensioner C323. CONNECT driver safety belt buckle pretensioner C323.

For vehicles with seat side air bags, DISCONNECT the restraint system diagnostic tool from driver seat side air bag C367.

CONNECT driver seat side air bag C367.

REACTIVATE the supplemental restraint system (SRS). Refer to AIR BAG RESTRAINT SYSTEMS .

Fig 1: Checking Circuit 566 (DG) For Voltage
Courtesy of FORD MOTOR CO.
A2 CHECK CIRCUIT 1205 (BK) FOR AN OPEN
- Measure the resistance between driver seat control switch C360-E, circuit 1205 (BK), harness side and ground.
- Is the resistance less than 5 ohms?
Yes

INSTALL a new driver seat control switch. TEST the system for normal operation.

DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from the driver safety belt buckle pretensioner C323. CONNECT driver safety belt buckle pretensioner C323.

For vehicles with seat side air bags, DISCONNECT the restraint system diagnostic tool from driver seat side air bag C367.

CONNECT driver seat side air bag C367.

REACTIVATE the supplemental restraint system (SRS). Refer to AIR BAG RESTRAINT SYSTEMS .

No

REPAIR the circuit. TEST the system for normal operation.

DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from the driver safety belt buckle pretensioner C323. CONNECT driver safety belt buckle pretensioner C323.

For vehicles with seat side air bags, DISCONNECT the restraint system diagnostic tool from driver seat side air bag C367.

CONNECT driver seat side air bag C367.

REACTIVATE the supplemental restraint system (SRS). Refer to AIR BAG RESTRAINT SYSTEMS .

Fig 2: Checking Circuit 1205 (BK) For An Open
Courtesy of FORD MOTOR CO.