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Home >> Acura >> 1995 >> Legend SE >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Trouble Codes >> Code 7 - Throttle Position (TP) Sensor
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Code 7 - Throttle Position (TP) Sensor

  1. Turn ignition off. Remove ACG fuse (No. 15, 7.5-amp) from underdash fuse box for 10 seconds to reset ECM. Retrieve codes. If Code 7 does not appear, problem is intermittent. Inspect for poor or loose connections at throttle position sensor, right shock tower harness connector, and ECM connectors. Test-drive vehicle and retest.
  2. If Code 7 exists, turn ignition off. Unplug 3-pin connector from throttle position sensor. Turn ignition on. Measure voltage between Yellow/White (+) and Green/White (-) wire terminals. If voltage is not about 5 volts, go to step 5). If voltage is about 5 volts, turn ignition off. Reconnect sensor wiring. Connect ECM Test Harness (07LAJ-PT3010A) between ECM and ECM harness. See Figure .
  3. Turn ignition on. Measure voltage between test terminals D11 (+) and D22 (-). Voltage should be about 0.5 volt at closed throttle, and about 4.5 volts at wide open throttle. Transition from 0.5 to 4.5 volts as throttle is opened should be smooth.
  4. If voltage is as specified, temporarily substitute known good ECM, then retest system. On models with TCS, unplug 16-pin connector from TCS. Repeat step 3). If voltages are now as specified, replace TCS control unit. On all models, if voltages are not correct, replace throttle position sensor, or repair open or short in Red/Blue wire between ECM terminal D11 and throttle position sensor.
  5. If voltage between Yellow/White (+) and Green/White (-) wire terminals in step 2) was not about 5 volts, measure voltage between Yellow/White (+) wire terminal and body ground. If voltage is about 5 volts, repair open in Green/White wire between ECM terminal D22 and throttle position sensor. If voltage is not about 5 volts, turn ignition off.
  6. Connect ECM Test Harness (07LAJ-PT3010A) between ECM and ECM harness. Turn ignition on. Measure voltage between test terminals D20 (+) and D22 (-). If voltage is about 5 volts, repair open in Yellow/White wire terminal between ECM connector terminal D20 and throttle position sensor. If voltage is not about 5 volts, temporarily substitute known good ECM, then retest system.
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