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Home >> Ford >> 2006 >> Focus ZX5 SE, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1426 (Seat System - Seats) >> Diagnostic Tests >> Seats >> Pinpoint Tests >> Pinpoint Test B: The Power Seat is Inoperative - Driver >> Pinpoint Test B: The Power Seat Is Inoperative - Driver

Pinpoint Test B: The Power Seat Is Inoperative - Driver

WARNING: This page is about a different car, the 2010 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
WARNING: Remove restraint system diagnostic tools from the vehicle prior to road testing. If tools are not removed, the supplemental restraint system (SRS) device may not deploy in a crash. Failure to follow this instruction may result in serious personal injury or death in a crash and possibly violate vehicle safety standards.
NOTE: The air bag warning indicator illuminates when the correct Restraints Control Module (RCM) fuse is removed and the ignition switch is ON.
NOTE: The Supplemental Restraint System (SRS) must be fully operational and free of faults before releasing the vehicle to the customer.
  1. B1 CHECK VOLTAGE TO DRIVER SEAT CONTROL SWITCH CIRCUIT 490 (RD) 
    • Key in OFF position.
    • Depower the SRS. Refer to GENERAL PROCEDURES article.
    • Disconnect: Driver Seat Side Air Bag C315
    • Connect: Restraint System Diagnostic Tool 418-133 to Driver Seat Side Air Bag C315
    • Disconnect: Driver Seat Control Switch C519
      • WARNING: Make sure no one is in the vehicle and there is nothing blocking or placed in front of any air bag module 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, MOUNTING AND CABLES article.
      • Fig 1: Checking Voltage To Driver Seat Control Switch Circuit 490 (RD)
      GF0046600Courtesy of FORD MOTOR CO.
    • Measure voltage between driver seat control switch C519-10, circuit 490 (RD), harness side and ground.
    • Is voltage greater than 10 volts? 
    1. YES  : Go to  B2.
    2. NO  : VERIFY Battery Junction Box (BJB) circuit breaker 601 (20A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the appropriate SYSTEM WIRING DIAGRAM ARTICLE to identify the possible causes of the circuit short. TEST the system for normal operation. DISCONNECT the battery ground cable.

      DISCONNECT the restraint system diagnostic tool from driver seat side air bag C315. CONNECT driver seat side air bag C315. REPOWER the SRS. REFER to GENERAL PROCEDURES article.

  2. B2 CHECK DRIVER SEAT CONTROL SWITCH GROUND CIRCUIT 57 (BK) FOR AN OPEN 
      Fig 2: Checking Driver Seat Control Switch Ground Circuit 57 (BK) For An Open
      GF0046601Courtesy of FORD MOTOR CO.
    • Measure resistance between driver seat control switch C519-6, circuit 57 (BK), harness side and ground.
    • Is resistance less than 5 ohms? 
    1. YES  : INSTALL a new seat control switch. REFER to Seat Control Switch . TEST the system for normal operation.

      DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag C315. CONNECT driver seat side air bag C315. REPOWER the SRS. REFER to GENERAL PROCEDURES article.

    2. NO  : REPAIR the circuit. TEST the system for normal operation.

      DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag C315. CONNECT driver seat side air bag C315. REPOWER the SRS. REFER to GENERAL PROCEDURES article.

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