Notes On Intermittents

1993 Cadillac DeVille Base, 4D SedanSECTION Notes On Intermittents

If intermittent Code F13 is being set, wiggle related wiring while observing BCM data parameter P.2.5. If failure appears, reading will jump from its normal value to reading outside the range of -29Β°F to 205Β°F (-34Β°C to 96Β°C). If value displayed by data parameter P.2.5 is not reasonably close to actual air temperature at sensor, check for poor terminal contact or replace sensor. To obtain accurate reading of in-car temperature, aspirator must draw in-car air past sensor.

Fig 1: BCM Code F13, In-Car Temperature Sensor, Schematic
G91E07739Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

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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.
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  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.