Lexus ES: Terminals Of Ecu
TERMINALS OF ECU
TERMINALS OF ECU
| *a | Component without harness connected (Rack and Pinion Power Steering Gear Assembly) | - | - |
HINT:
- The rack and pinion power steering gear assembly uses waterproof connectors. Therefore, voltage or waveforms cannot be checked with the connectors connected to the vehicle.
-
Use the Data List and Active Test on the Techstream to check the operation of the rack and pinion power steering gear assembly and check that communication is established.
Click here
.gif)
| Terminal No. (Symbol) | Terminal Description |
|---|---|
| C37-4 (IG) | IG power source |
| C37-7 (PGND) | Power ground |
| C37-8 (PIG) | Power source |
| C37-10 (CANH) | CAN communication line |
| C37-11 (CANL) | CAN communication line |
CHECK WIRE HARNESS SIDE CONNECTOR
| *a | Front view of wire harness connector (to Rack and Pinion Power Steering Gear Assembly) | - | - |
(a) Disconnect the C37 rack and pinion power steering gear assembly.
(b) Measure the voltage and resistance according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| C37-4 (IG) - Body ground | W - Body ground | IG power source | Power switch on (IG) | 8 to 16 V |
| C37-7 (PGND) - Body ground | B - Body ground | Power ground | Always | Below 1 Ω |
| C37-8 (PIG) - Body ground | W - Body ground | Power source | Always | 9 to 16 V |
READ NEXT:
Diagnosis System
DIAGNOSIS SYSTEM CHECK DLC3 (a) Check the DLC3. Click here CHECK WARNING LIGHT (a) When a problem occurs in the power steering system, the EPS warning light in the combination meter assembly comes o
Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTCs (USING TECHSTREAM) (a) Turn the power switch off. (b) Connect the Techstream to the DLC3. (c) Turn the power switch on (IG). (d) Turn the Techstream on. (e) Enter the foll
Fail-safe Chart
FAIL-SAFE CHART If a problem occurs in the power steering system, the power steering assist will be stopped or the amount of power assist will be decreased to protect the system. Power Steering System
SEE MORE:
Removal
REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during brake pedal stroke sensor assembly removal/installation are shown below. Necessary Procedures After Parts
Communication Error From Clearance Sonar ECU to VSC (C164B)
DESCRIPTION The electronically controlled brake system receives parking support brake system information from the clearance warning ECU assembly via CAN communication. When it is determined that there is a communication error between the skid control ECU and clearance warning ECU assembly, DTC C164B
