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
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 | Engine 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 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 CHECK DTCs (USING TECHSTREAM) (a) Turn the engine switch off. (b) Connect the Techstream to the DLC3. (c) Turn the engine switch on (IG). (d) Turn the Techstream on. (e) Enter the fo
DTC CHECK / CLEAR CHECK DTCs (USING TECHSTREAM) (a) Turn the engine switch off. (b) Connect the Techstream to the DLC3. (c) Turn the engine switch on (IG). (d) Turn the Techstream on. (e) Enter the fo
SEE MORE:
PARTS LOCATION ILLUSTRATION *1 LUGGAGE DOOR OPENING CANCEL SWITCH ASSEMBLY *2 TRUNK AND FUEL SWITCH ASSEMBLY *3 LUGGAGE COMPARTMENT DOOR OPENING SWITCH *4 DLC3 *5 MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) *6 INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - ECU-DCC NO. 2 FUSE
DESCRIPTION While torque sensor system, motor system or ECU system malfunctions are detected, the fail-safe function suspends power assist. However, power assist continues with limited assistance amount if only C1533 or C1534 is output. DTC No. Detection Item DTC Detection Condition Trouble
© 2016-2025 Copyright www.lexguide.net