Main Relay EFI Fuse (15A) Fusible Link Ignition Switch No. 2 Main Relay No. 1 Main Relay ECU +B ECU M-REL 4 2 1 3 IGNITION Fuse 7.5A Fusible Link Resistor No. 2 Main Relay No. 1 Main Relay F11023 INSPECTION OF MAIN RELAYS 1. CHECK MAIN RELAYS OPERATION (a) Turn on the ignition switch. (b) At this time an operation noise will occur from the relay. 2. MEASURE RESISTANCE OF MAIN RELAYS (a) Remove the No. 1 main relay from the relay block. Unplug the connector from the No. 2 main relay. (b) Measure the resistance between each terminal. No. 1 Main Relay 3 1 2 4 No. 2 Main Relay 3 1 2 4 Between terminals Resistance Ω No. 1 Main Relay 1 — 2 3 — 4 40 — 60 Infinity No. 2 Main Relay 1 — 2 3 — 4 60 — 120 Infinity