Prelude L4-2.2L SOHC (1994)
PGM-FI ECM Connector Description And Wire Location
8. Measure voltage between D10 (+) terminal and A26 (-) terminal. While measuring, turn headlight switch to second position (low). Voltage should
drop when headlights turned on. If not, replace the ELD.
9. If voltage drops but DTC indication or symptom still exist substitute known good PGM-FI ECM.