Toyota Avalon (XX50): Relay

Inspection

INSPECTION

PROCEDURE

1. INSPECT ST RELAY

(a) Check the resistance.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
3 - 5	Battery voltage not applied to terminals 1 and 2	10 kΩ or higher
3 - 5	Battery voltage applied to terminals 1 and 2	Below 1 Ω

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

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Hybrid Control System: System Diagram. Terminals Of Ecu. Transmission Control Switch Circuit
System Diagram SYSTEM DIAGRAM Terminals Of Ecu TERMINALS OF ECU HYBRID VEHICLE CONTROL ECU Terminal No. (Symbol) Wiring Color Terminal Description Input/Output Condition Specified Condition A23-1 (+B2) - G46-6 (E1) W - W-B Power source Input Power switch on (IG) 11 to 14 V A23-3 (IG2) - G46-6 (E1) B ...