Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual: Relay

On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT INJECTOR RELAY (INJ)

(a) 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 between terminals 1 and 2

10 kΩ or higher

Battery voltage applied between terminals 1 and 2

Below 1 Ω

If the result is not as specified, replace the injector relay (INJ).

2. INSPECT FUEL PUMP RELAY (FUEL PMP)

(a) 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 between terminals 1 and 2

10 kΩ or higher

Battery voltage applied between terminals 1 and 2

Below 1 Ω

If the result is not as specified, replace the fuel pump relay (FUEL PMP).

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