Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Relay

Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual / Vehicle Interior / Heating / Air Conditioning / Relay

On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT PTC HEATER RELAY

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

*a

Component without harness connected

(PTC HTR NO. 1)

*b

Component without harness connected

(PTC HTR NO. 2)

*c

Component without harness connected

(PTC HTR NO. 3)

-

-

Standard Resistance:

Tester Connection

Condition

Specified Condition

3 - 5

Battery voltage not applied between terminals 1 and 2

10 kΩ or higher

3 - 5

Battery voltage applied between terminals 1 and 2

Below 1 Ω
  • If the result is not as specified, replace the PTC heater relay.
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    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

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