Lexus ES: On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT RAIN SENSOR
| (a) Disconnect the rain sensor connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| 4 (SIG) - 2 (ES) | Engine switch on (IG) | 11 to 14 V |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| 2 (ES) - Body ground | Always | Below 1 Ω |
HINT:
If the result is not as specified, replace the rain sensor.
| (d) Reconnect the rain sensor connector. |
|
(e) Connect an oscilloscope to terminal 3 (MPX) and 2 (ES) of the rain sensor connector.
(f) Check for pulses according to the value(s) in the table below.
OK:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| 3 (MPX) - 2 (ES) | Engine switch on (IG) Front wiper switch in auto | Pulse generation |
HINT:
If the result is not as specified, replace the rain sensor.
READ NEXT:
Removal
REMOVAL PROCEDURE 1. REMOVE RAIN SENSOR COVER *a Stopper Remove in this Direction (1) Remove in this Direction (2) (a) Release the stopper by pulling it out and disconnect the r
Installation
INSTALLATION PROCEDURE 1. INSTALL RAIN SENSOR TAPE HINT: The rain sensor tape is reusable. Only replace the tape if it is damaged or contaminated with foreign matter. (a) Clean the sensing portion of
Relay
On-vehicle InspectionON-VEHICLE INSPECTION PROCEDURE 1. INSPECT WIPER RELAY (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Co
SEE MORE:
Steering Pad Switch Circuit
DESCRIPTION
The steering pad switch assembly outputs the dynamic cruise control on/off signal and various control signals to the ECM.
The ECM controls the dynamic cruise control system according to the signals received from the steering pad switch assembly.
WIRING DIAGRAM CAUTION / NOTICE /
Components
COMPONENTS ILLUSTRATION *1 FRONT WHEEL OPENING EXTENSION PAD RH *2 FRONT WHEEL OPENING EXTENSION PAD LH *3 NO. 1 ENGINE UNDER COVER *4 NO. 2 ENGINE UNDER COVER ASSEMBLY *5 FILLER PLUG *6 DRAIN PLUG *7 GASKET - - N*m (kgf*cm, ft.*lbf): Specified torque
