SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSACURA2008RDXREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTINFOTAINMENTHANDSFREELINK SYSTEMCONTROL UNIT INPUT TEST/REPLACEMENT
2008 Acura RDX

Control Unit Input Test/Replacement

2008 Acura RDXSECTION Control Unit Input Test/Replacement
  1. Remove the passenger's console cover (see CENTER CONSOLE REMOVAL/INSTALLATION ).
  2. Disconnect the 22P connector (A) then remove the bolts (B) from the HandsFreeLink control unit (C).
    Fig 1: Identifying 22P Connector, Bolts And Handsfreelink Control Unit
    G06223206Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. Inspect the connector and socket terminals for a good pin fit 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, 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, go to step 5.
      TEST CONDITION CHART

      Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained
      13 BLK Under all conditions Measure the voltage to ground: There should be less than 0.1 V.
      • Poor ground (G503)
      • An open in the wire
      11 GRN Under all conditions Measure the voltage to ground: There should be battery voltage.
      • Blown No. 23 (10 A) fuse in the under-hood fuse/relay box
      • An open in the wire
      1 PUR Ignition switch ACC (I) or ON (II) Measure the voltage to ground: There should be battery voltage.
      • Blown No. 35 (7.5 A) fuse in the under-dash fuse/relay box
      • An open in the wire
  5. Disconnect the 22P connector again, and make this input test at the connector.
    • If the test indicates a problem, find and correct the cause, then recheck the system.
    • If the input test proves OK, the HandsFreeLink control unit must be faulty, replace it.
      TEST CONDITION CHART

      Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained
      14 PNK Under all conditions Check for continuity between No. 14 terminal and the gauge control module 36P connector No. 30 terminal: There should be continuity. An open in the wire
      Gauge control module 36P connector disconnected Check for continuity to ground: There should be no continuity. Short to ground
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.