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  section at the end of this article for coil terminal identification of solenoids and relays. Replace any solenoid or relay with less than 20 ohms resistance.

Fig 1: Test No. 2 - Airflow Sensor Connector (2.6L Passport)

Courtesy of ISUZU MOTOR CO.

Fig 2: Test No. 2 - Data Link Connector (2.6L Passport)

Courtesy of ISUZU MOTOR CO.

Fig 3: Test No. 2 - Diagnostic Flowchart (2.6L Passport)

Courtesy of ISUZU MOTOR CO.