toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Oxygen Sensor Relay > < Main Relay (Computer/Fuel System)|Locations
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Main Relay (Computer/Fuel System): Testing and Inspection

INSPECT E.F.I. CIRCUIT OPENING RELAY ASSEMBLY 

a. Check the resistance.

1. Using an ohmmeter, measure the resistance between the terminals.

If the result is not as specified, replace the E.F.I. circuit opening relay assembly.

INSPECT EFI RELAY 

a. Check the resistance.

1. Using an ohmmeter, measure the resistance between the terminals.

If the result is not as specified, replace the E.F.I. ECU relay.

Oxygen Sensor Relay > < Main Relay (Computer/Fuel System)|Locations