2012 Acura TL BaseFACTORY OEM SERVICE PROCEDURE

Ignition Switch Test

NOTE: SRS components are located in this area. Review the SRS component locations (see COMPONENT LOCATION INDEX ), and precautions and procedures (see PRECAUTIONS AND PROCEDURES ) before doing repairs or servicing.
  1. Do the battery terminal disconnection procedure (see BATTERY TERMINAL DISCONNECTION AND RECONNECTION ).
  2. Remove the steering column covers (see SIDE DEFOGGER VENT TRIM REMOVAL/INSTALLATION ).
  3. Disconnect the 5P connector (A) from the ignition switch (B).
    Fig 1: Identifying Ignition Switch & 5P Connector End View
    G08067475Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Check for continuity between the terminals in each switch position according to the table.
    Fig 2: Continuity Reference Chart
    G08067476Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. If the continuity is not as specified, replace the ignition switch (see IGNITION SWITCH REPLACEMENT ).
  6. Do the battery terminal reconnection procedure (see BATTERY TERMINAL DISCONNECTION AND RECONNECTION ).
Factory Service Tools

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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.

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