In-Car Temperature Sensor Testing

1998 Acura 3.5RL Special EditionSECTION In-Car Temperature Sensor Testing
CAUTION: To avoid damage to sensor, use an ohmmeter with a measuring current of one milliamp or less.

Remove climate control unit. Remove sensor from dashboard. Measure resistance across sensor connector terminals at specified temperatures. See IN-CAR TEMPERATURE SENSOR RESISTANCEΒ  table. If resistance is not as specified, replace sensor.

IN-CAR TEMPERATURE SENSOR RESISTANCE

Temperature Β°F (Β°C) Ohms
32 (0) 6600
50 (10) 4100
68 (20) 2500
86 (30) 1700
104 (40) 1100
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

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

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