Main Relay (Computer/Fuel System): Testing and Inspection

2AR-FE ENGINE CONTROL: RELAY: ON-VEHICLE INSPECTION

1. INSPECT INTEGRATION RELAY (IG2)

(a) Check the IG2 fuse.

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

Standard Resistance:





If the result is not as specified, replace the IG2 fuse.

(b) Check the IG2 relay.

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





Standard Resistance:





Text in Illustration





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

2. INSPECT INTEGRATION RELAY (EFI)

(a) Check the EFI No. 1 fuse.

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

Standard Resistance:





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

(b) Check the EFI No. 1 relay.

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





Standard Resistance:





Text in Illustration





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

3. INSPECT INTEGRATION RELAY (EFI NO. 2)

(a) Check the EFI No. 2 fuse.

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

Standard Resistance:





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

(b) Check the EFI No. 2 relay.

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





Standard Resistance:





Text in Illustration





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

4. INSPECT INSTRUMENT PANEL JUNCTION BLOCK (C/OPN)

NOTICE:
The circuit opening relay is built into the instrument panel junction block.

(a) Measure the resistance of the circuit opening relay circuit.





Text in Illustration





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

Standard Resistance:





If the result is not as specified, replace the instrument panel junction block.