cardiagn.com NG REPLACE RELAY NG REPLACE RELAY OK 2. CHECK WIRE HARNESS (ENGINE ROOM JUNCTION BLOCK - ECM, BATTERY AND BODY GROUND) (a) Remove the EFI OR ECD relay from the engine room relay block. (b) Disconnect the E5 and E9 ECM connectors. (c) Measure the voltage of the wire harness side connector. Standard voltage: TESTER CONNECTION SPECIFIED CONDITION R/B EFI OR ECD relay terminal 3- Body ground 10 to 14 V (d) Measure the resistance of the wire harness side connectors. Standard resistance:
TESTER CONNECTION SPECIFIED CONDITION R/B EFI OR ECD relay terminal 4 - E9-8 (MREL) Below 1 Ω R/B EFI OR ECD relay terminal 2- Body ground Below 1 Ω R/B EFI OR ECD relay terminal 1- E9-1 (+B) Below 1 Ω R/B EFI OR ECD relay terminal 1- E9-2 (+B2) Below 1 Ω E5-7 (E01) - Body ground Below 1 Ω REPAIR OR REPLACE HARNESS AND NG CONNECTOR OK REPLACE ECM NG REPAIR OR REPLACE HARNESS AND CONNECTOR OK REPLACE ECM