Lexus ES manuals

Lexus ES: 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.

2. INSPECT DEICER RELAY

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

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

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

3. INSPECT HWD RELAY

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

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

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

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 Window Defogger System (for Gasoline Model)

 Precaution

PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL NOTICE: When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cab

 Parts Location

PARTS LOCATION ILLUSTRATION *1 DEF RELAY *2 REAR WINDOW DEFOGGER WIRE *3 NO. 1 ENGINE ROOM RELAY BLOCK AND NO. 1 JUNCTION BLOCK ASSEMBLY - DEF FUSE *4 BACK WINDOW GLASS ILLUSTRA

SEE MORE:

 On-vehicle Inspection

ON-VEHICLE INSPECTION PROCEDURE 1. SECURE VEHICLE (a) Fully apply the parking brake and chock a wheel. CAUTION: Make sure to apply the parking brake and chock a wheel before performing this procedure. If the vehicle is not secure and the shift lever is moved to N, the vehicle may suddenly move,

 System Description

SYSTEM DESCRIPTION GENERAL The windshield deicer system uses thin heater wires attached to the inside of the windshield glass to help deice the window surface more quickly. An indicator light illuminates while the system is operating. This system automatically turns off after approximately 15 minute

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