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:
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. CUSTOMER PROBLEM ANALYSIS HINT:
In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in ord
Assist Map Number Un-Writing (C1581)
DESCRIPTION This DTC will be stored if the power steering ECU (rack and pinion power steering gear assembly) determines that the assist map is not written in the ECU. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition Note C1581
