1993 Acura Integra GS-RFACTORY OEM SERVICE PROCEDURE

Code 10: Air Temperature (Ta) Sensor

  1. Turn ignition off. Remove BACK-UP fuse (7.5-amp) from underhood fuse/relay box for 10 seconds to reset ECM. Check ECM for fault codes. If Code 10 is not present, problem is intermittent. Check for poor connections at ECM, air temperature sensor and wiring harness connectors.
  2. Test drive vehicle and retest. If Code 10 is present, turn ignition off. Disconnect 2-pin connector from sensor connector. Using ohmmeter, measure resistance at sensor terminals. If resistance is not 400-4000 ohms, replace air temperature sensor. If resistance is 400-4000 ohms, turn ignition on. Measure voltage between Red/Yellow wire terminal and body ground.
  3. If voltage is not about 5 volts, go to step 4. If about 5 volts are present, measure voltage between Red/Yellow (+) and Green/White (-) wire terminals at sensor. If voltage is not about 5 volts, repair open in Green/White wire between ECM terminal D22 and air temperature sensor. If about 5 volts are present, replace ECM and retest.
  4. Turn ignition off. Connect ECM Test Harness (07LAJ-PT3010A ) connector "D" to ECM, leaving wiring harness disconnected. See Figure . Turn ignition on. Measure voltage between test terminals D15 (+) and D22 (-). If about 5 volts are present, repair open or short in Red/Yellow wire between ECM connector terminal D15 and air temperature sensor. If voltage is not about 5 volts, replace ECM and retest.
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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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