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:
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:
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:
If the result is not as specified, replace the HWD relay. |
|
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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
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Terminals Of Ecu
TERMINALS OF ECU CHECK WINDSHIELD WIPER MOTOR ASSEMBLY (a) Disconnect the A38 windshield wiper motor assembly connector. (b) Measure the voltage and resistance on the wire harness side connector according to the value(s) in the table below. Terminal No. (Symbol) Wiring Color Terminal Descrip
Operation Check
OPERATION CHECK CHECK DOOR OPEN LINKED WIPER SUSPEND FUNCTION (w/ Auto Wiper System) (a) Continuously apply water to the windshield glass in front of the rain sensor. (b) Turn the power switch on (IG). (c) Move the windshield wiper switch assembly to the AUTO position and check that the front wipers
