Toyota CH-R Service Manual: Relay

On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT DEFOGGER 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 - 4	Battery voltage applied to terminals 1 and 2	10 kΩ or higher
3 - 4	Battery voltage not applied between terminals	Below 1 Ω
3 - 5	Battery voltage applied to terminals 1 and 2	Below 1 Ω
3 - 5	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 defogger relay.

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Toyota C-HR (AX20) 2023-2026 Owner's Manual