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Home >> Acura >> 1993 >> Vigor LS, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Trouble Codes >> Code 10: Air Temperature (Ta) Sensor
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Code 10: Air Temperature (Ta) Sensor

  1. Turn ignition off. Remove BACK-UP fuse (10-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 connector, air temperature sensor and wiring harness. Test drive vehicle and retest.
  2. If Code 10 is present, turn ignition off. Disconnect 2-pin connector from sensor connector. Using an 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 White/Yellow wire terminal and body ground.
  3. If voltage is not about 5 volts, go to step 4. If voltage is about 5 volts, measure voltage between White/Yellow (+) and Green/White (-) wire terminals at sensor. If voltage is not about 5 volts, repair open in Green/White wire between ECM connector terminal D22 and air temperature sensor. If voltage is about 5 volts, 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 voltage is about 5 volts, repair open or short in White/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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