Test No. 2 - Check Engine Light Inoperative

NOTE: Before replacing ECM, check resistance of ECM-controlled relay and solenoid coils. See appropriate wiring diagram in WIRING DIAGRAMS article for coil terminal identification of solenoids and relays. Replace any solenoid or relay with less than 20 ohms resistance.

Fig 1: Airflow Sensor Connector

Courtesy of ISUZU MOTOR CO.

Fig 2: Data Link Connector

Courtesy of ISUZU MOTOR CO.

Fig 3: Test No. 2 - Diagnostic Flowchart

Courtesy of ISUZU MOTOR CO.