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HOMESERVICE MANUALSACURA2008RLREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEWINDOWSPOWER REAR WINDOW SUNSHADECONTROL UNIT INPUT TEST
2008 Acura RL

Control Unit Input Test

2008 Acura RLSECTION Control Unit Input Test
  1. Remove the rear shelf undercover (see TRIM REMOVAL/INSTALLATION - REAR SHELF AREA ).
  2. Disconnect the 5P connector (A) from the power rear window sunshade control unit (B).
    Fig 1: Identifying Power Rear Window Sunshade Control Unit And 5P Connector
    G05497216Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. 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 4.
  4. Reconnect the connector to the control unit, and make these input tests at the connector.
    • 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 the power rear window sunshade.
    WIRE CAVITY REFERENCE CHART

    Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained
    1 BLK Under all conditions Measure the voltage to ground:
    There should be less than 0.5 V.
    • Poor ground (G602)
    • An open in the wire
    5 GRN Ignition switch ON (II) Measure the voltage to ground:
    There should be battery voltage.
    • Blown No. 11 (7.5 A) fuse in the driver's under-dash fuse/relay box
    • An open in the wire
    4 BRN Ignition switch ON (II), transmission range switch in R position Measure the voltage to ground:
    There should be battery voltage.
    • Blown No. 21 (10 A) fuse in the driver's under-dash fuse/relay box
    • Faulty driver's under-dash fuse/relay box
    • Faulty transmission range switch
    • An open in the wire
    3 BLU Ignition switch ON (II), sunshade switch ON Measure the voltage to ground:
    There should be less than 1 V.
    • Poor ground (G601)
    • Faulty sunshade switch
    • An open in the wire
    Ignition switch ON (II), sunshade switch OFF Measure the voltage to ground: There should be 5V or more.
    • Faulty sunshade switch
    • A short to ground in the wire
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.