Toyota Avalon (XX50): Relay

On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT DEF RELAY

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
3 - 4	Auxiliary battery voltage applied between terminals 1 and 2	10 kΩ or higher
3 - 4	Auxiliary battery voltage not applied between terminals	Below 1 Ω
3 - 5	Auxiliary battery voltage applied between terminals 1 and 2	Below 1 Ω
3 - 5	Auxiliary battery voltage not applied between terminals	10 kΩ or higher
4 - 5	Always	10 kΩ or higher

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

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Can Communication System(for Hv Model): Clearance Warning ECU Communication Stop Mode. Combination Meter ECU Communication Stop Mode. Data List / Active Test
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