Lexus ES: Terminals Of Ecu
TERMINALS OF ECU
TERMINALS OF ECU
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| *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
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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
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| *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
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 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
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:
Removal
REMOVAL PROCEDURE 1. REMOVE FRONT WHEEL RH Click here 2. REMOVE FRONT FENDER APRON SEAL RH Click here 3. REMOVE V-BANK COVER SUB-ASSEMBLY Click here 4. REMOVE CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Intake Side of Bank 1) Click here 5. SET NO. 1 CYLINDER TO TDC/COMPRESSION
Inspection
INSPECTION PROCEDURE 1. INSPECT FUEL VAPOR CONTAINMENT VALVE (FUEL TANK SOLENOID MAIN VALVE ASSEMBLY) (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 25 to 30 Ω If th
