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.
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| 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 |
