LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Acura >> 1993 >> Legend Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Trouble Codes >> Code 7: Throttle Position Sensor
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Code 7: Throttle Position Sensor

  1. Turn ignition off. Remove ACG fuse (No. 15, 7.5-amp) from underdash fuse box for 10 seconds to reset ECM. Check ECM for fault codes. If Code 7 is not present, problem is intermittent. Check for poor and loose connections at throttle position sensor, right shock tower harness connector and ECM connectors. Test drive vehicle and retest.
  2. If Code 7 is present, turn ignition off. Disconnect 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 about 5 volts are present, turn ignition off. Reconnect sensor connector. Connect ECM Test Harness (07LAJ-PT3010A ) between ECM and ECM connectors. 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 correct, replace ECM and retest. 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 connectors. See Figure . 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, replace ECM and retest.
scientia non olet · About LEMON Manuals