2007 Acura RLFACTORY OEM SERVICE PROCEDURE

Electrical Compass Unit Input Test

WARNING: This page is about a different car, the 2008 Acura TL and 2007 Acura TL. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the rear shelf (see TRIM REMOVAL/INSTALLATION - REAR SHELF AREA ).
  2. Disconnect the 6P connector (A) from the electrical compass unit (B).
    Fig 1: Identifying Electrical Compass Unit 6P Connector
    G05463256Courtesy 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 electrical compass unit, and perform the following input tests at the connectors.
    • If any test indicates a problem, find and correct the cause, then recheck the system.
    • If all input tests prove OK, the electrical compass unit must be faulty; replace it, and do the compass calibration (see ELECTRICAL COMPASS CALIBRATION  ).
      TEST CONDITION

      Cavity Wire Test Condition Test: Desired result Possible cause if result is not obtained
      2 BLK Under all conditions Measure the voltage to ground:
      There should be less than 0.5 V.
      • Poor ground (G604)
      • An open in the wire
      1 YEL/GRN Ignition switch ON (II) Measure the voltage to ground:
      There should be battery voltage.
      • Blown No. 20 (15 A) fuse in the under-dash fuse/relay box
      • An open in the wire
      3 BRN Ignition switch ON (II) Measure the voltage to ground:
      There should be about 4 V.
      • Faulty display unit
      • An open in the wire
      • A short to ground in the wire
      4 PUR Ignition switch ON (II) Measure the voltage to ground:
      There should be about 4 V.
      • Faulty display unit
      • An open in the wire
      • A short to ground in the wire
      5 LT GRN Ignition switch ON (II) Measure the voltage to ground:
      There should be about 4 V.
      • Faulty display unit
      • An open in the wire
      • A short to ground in the wire
      6 GRY Ignition switch ON (II) Measure the voltage to ground:
      There should be about 4 V.
      • Faulty display unit
      • An open in the wire
      • A short to ground in the wire
Factory Service Tools

Use the Manual With the Right Hardware

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

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote 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.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.