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Home >> Acura >> 2003 >> MDX Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 108 (Driver Position Memory System (DPMS)) >> Power Tilt/Telescopic Steering Control Unit Input Test
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Power Tilt/Telescopic Steering Control Unit Input Test

WARNING: This page is about a different car, the 2009 Acura MDX, 2008 Acura MDX, and 2007 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Before testing the power till/telescopic steering control unit, troubleshoot the multiplex integrated control unit first, using B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).
  1. Turn the ignition switch to LOCK (0).
  2. Remove the steering column cover (see COLUMN COVER REMOVAL/INSTALLATION ).
  3. Disconnected the 16P connector (A) and 8P connector (B) from the power till/telescopic steering control unit (C).
    Fig 1: Identifying 16P Connector, 8P Connector And Power Till/Telescopic Steering Control Unit
    G05488321Courtesy 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. Reconnect the connectors to the power tilt/telescopic steering control unit, and 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.
      WIRE CAVITY CHART

      Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained
      A8 BLK Under all conditions Measure the voltage to ground:
      There should be less than 0.5 V.
      • Poor ground (G503, G506)
      • An open in the wire
      B1
      A1 WHT Under all conditions Measure the voltage to ground:
      There should be battery voltage.
      • No. 4 (40 A) fuse in the main under-hood fuse box
      • Blown No. 7 (10 A) fuse in the under-dash fuse/relay box
      • An open in the wire
      A9 YEL Ignition switch ON (II) Measure the voltage to ground:
      There should be battery voltage.
      • Blown No. 21 (7.5 A) fuse in the under-dash fuse/relay box
      • An open in the wire
      B3 WHT Under all conditions Measure the voltage to ground:
      There should be battery voltage.
      • Blown No. 2 (OP2) (40 A) fuse in the main under-hood fuse box
      • Blown No. 28 (20 A) fuse in the under-dash fuse/relay box
      • An open in the wire
      B5 GRN Under all conditions Measure the voltage to ground:
      There should be battery voltage.
      • Blown No. 3 (P/W) (50 A) fuse in the main under-hood fuse box
      • Blown No. 15 (20 A) fuse in the under-dash fuse/relay box
      • An open in the wire
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