Lexus ES: Steering Pad Switch Circuit
DESCRIPTION
The forward recognition camera receives LTA main switch signals from the steering pad switch assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
The vehicle is equipped with a Supplemental Restraint System (SRS) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the precaution for Supplemental Restraint System.
Click here .gif)
PROCEDURE
| 1. | INSPECT STEERING PAD SWITCH ASSEMBLY |
(a) Remove the steering pad switch assembly.
Click here
(b) Inspect the steering pad switch assembly.
Click here
| NG | .gif) | REPLACE STEERING PAD SWITCH ASSEMBLY |
|
.gif)
| 2. | INSPECT SPIRAL CABLE SUB-ASSEMBLY |
(a) Remove the spiral cable sub-assembly.
Click here
(b) Inspect the spiral cable sub-assembly.
Click here
| NG | | REPLACE SPIRAL CABLE SUB-ASSEMBLY |
|
| 3. | CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - FORWARD RECOGNITION CAMERA) |
(a) Disconnect the G20 spiral cable sub-assembly connector.
(b) Disconnect the P5 forward recognition camera connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G20-6 (DIST) - P5-3 (LKSW) | Always | Below 1 Ω |
| G20-6 (DIST) or P5-3 (LKSW) - Body ground | Always | 10 kΩ or higher |
(d) Connect the P5 forward recognition camera connector.
(e) Connect the G20 spiral cable sub-assembly connector.
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 4. | CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - BODY GROUND) |
(a) Disconnect the G20 spiral cable sub-assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G20-2 (ECC) - Body ground | Always | Below 1 Ω |
(c) Connect the G20 spiral cable sub-assembly connector.
| OK | | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
READ NEXT:
Indicator Circuit
DESCRIPTION The forward recognition camera sends indicator illumination request signals to the combination meter assembly via CAN communication. CAUTION / NOTICE / HINT NOTICE:
When replacing the f
Precaution
PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL NOTICE:
When disconnecting the cable from the negative (-) auxiliary battery terminal, initialize the followin
SEE MORE:
Parts Location
PARTS LOCATION ILLUSTRATION *1 TIRE PRESSURE WARNING ECU AND RECEIVER *2 TIRE PRESSURE WARNING VALVE AND TRANSMITTER ILLUSTRATION *1 STEERING PAD SWITCH ASSEMBLY *2 COMBINATION METER ASSEMBLY - TIRE PRESSURE WARNING LIGHT - MULTI-INFORMATION DISPLAY *3 MAIN BODY ECU (MUL
Removal
REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during telephone and GPS antenna assembly removal/installation are shown below. Necessary Procedure After Part
