EFI Relay

1UR-FE ENGINE CONTROL SYSTEM: EFI RELAY: ON-VEHICLE INSPECTION

1. REMOVE INTEGRATION RELAY Testing and Inspection

2. INSPECT INTEGRATION RELAY (EFI)

NOTICE:
* Some relays are built into the integration relay. The integration relay cannot be disassembled. If there is a malfunction in the circuit of the integration relay, replace the integration relay.
* The internal circuit of the integration relay is as shown in the illustration below. Inspect the integration relay using the following procedures.





(a) Measure the resistance of the EFI No. 1 fuse.

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





(2) If the result is not as specified, replace the EFI No. 1 fuse.

(b) Measure the resistance of the EFI relay.





(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





(2) If the result is not as specified, replace the integration relay.

3. INSTALL INTEGRATION RELAY Testing and Inspection