LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Acura >> 2005 >> RL >> Repair and Diagnosis >> External Pages >> Different car >> Section 15 (Automatic HVAC System) >> Sunlight Sensor Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Sunlight Sensor 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 sunlight sensor (A) from the dashboard (see SUNLIGHT SENSOR REPLACEMENT  ).
    Fig 1: Identifying Sunlight Sensor
    G05462481Courtesy of AMERICAN HONDA MOTOR CO., INC.
  2. Turn the ignition switch to ON (II). Measure the voltage between the terminals with the (+) probe on the No. 2 terminal and the (-) probe on the No. 1 terminal with the 2P connector connected.
    NOTE: The voltage readings will not change under the light of a flashlight or a fluorescent lamp. Voltage should be:
    • 3.6-3.7 V or more with the sensor out of direct sunlight.
    • 3.3-3.5 V or less with the sensor in direct sunlight.
  3. If the voltage is not as specified, replace the sunlight sensor (see SUNLIGHT SENSOR REPLACEMENT  ).