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Home >> Acura >> 2005 >> TL Automatic >> Repair and Diagnosis >> Body & Frame >> Seats >> Driving Position Memory Systems (DPMS) >> Power Seat Control Unit Input Test
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Power Seat Control Unit Input Test

NOTE: Before troubleshooting the DPMS, troubleshoot the multiplex integrated control system first using B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).
  1. Turn the ignition switch OFF.
  2. Remove the driver's power seat (see FRONT SEAT REMOVAL/INSTALLATION ).
    NOTE: Be careful not to scratch the interior trim.
  3. Disconnect the connectors from the power seat control unit (A).
    NOTE: All connectors view are from wire side of female terminals.
    Fig 1: Disconnecting Connectors From Power Seat Control Unit
    G03662318Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Inspect the connector and socket terminals to be sure they are all making good contact.
    • If the terminals are bent, loose or corroded, repair them as necessary and recheck the system.
    • If the terminals look OK, go to step  5.
  5. With the power seat control unit still disconnected, make these input tests at the connectors.
    • If any test indicates a problem, find and correct the cause, then recheck the system.
    • If all the input tests prove OK, the control unit must be faulty; replace it.
    SYSTEM INPUT TEST AND FUNCTION TEST

    Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained
    A8 (1) BLU/BLK Under all conditions Check for continuity to ground: There should be continuity.
    • Poor ground (G501, G503, G601)
    • An open in the wire
    A20
    B7
    D1    		 BLK
    A9 YEL/GRN Ignition switch ON (II) Check for voltage to ground: There should be battery voltage.
    • Blown No. 20 (7.5 A or 15 A) fuse in the under-dash fuse/relay box
    • An open in the wire
    A10 GRY/BLU Under all conditions Check for voltage to ground: There should be battery voltage.
    • Blown No. 15 (40 A) fuse in the under-hood fuse/relay box
    • Blown No. 6 (7.5 A) fuse in the under-dash fuse/relay box
    • An open in the wire
    B3 WHT/BLU Under all conditions Check for voltage to ground: There should be battery voltage.
    • Blown No. 20 (40 A) fuse in the under-hood fuse/relay box
    • Blown No. 14 (20 A) fuse in the under-dash fuse/relay box
    • An open in the wire
    D4 WHT/RED Under all conditions Check for voltage to ground: There should be battery voltage.
    • Blown No. 20 (40 A) fuse in the under-hood fuse/relay box
    • Blown No. 16 (20 A) fuse in the under-dash fuse/relay box
    • An open in the wire
    A14 PNK Under all conditions Check for continuity between the B4 terminal and under-dash fuse/relay box connector G (6P) No. 1 terminal:
    There should be continuity.    		 An open in the wire
    Under-dash fuse/relay box connector G (6P)
    disconnected    		 Check for continuity between the A14 terminal and body ground:
    There should be no continuity.    		 A short to ground in the wire
    C4 PUR Under all conditions Check for continuity between the C4 terminal and power mirror control unit connector No. 23 terminal:
    There should be continuity end.    		 An open in the wire
    Power mirror control unit connector (26P)
    disconnected    		 Check for continuity between the C4 terminal and body ground:
    There should be no continuity.    		 A short to ground in the wire
    (1) M/T model
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