Lexus ES: Terminals Of Ecm
TERMINALS OF ECM
HINT:
The standard normal voltage and resistance between each pair of ECM terminals is shown in the table below. The appropriate conditions for checking each pair of terminals are also indicated. The result of checks should be compared with the standard normal voltage and resistance for that pair of terminals, displayed in the Specified Condition column. The illustration above can be used as a reference to identify the ECM terminal locations.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| A28-10 (E1) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
| A28-1 (BATT) - A28-10 (E1) | G - W-B | Battery (for measuring battery voltage and for ECM memory) | Always | 11 to 14 V |
| C77-62 (LIN) - Body ground | B - Body ground | LIN communication line | Engine switch off (while LIN communication stopped) | 10 kΩ or higher |
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Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. CUSTOMER PROBLEM ANALYSIS HINT:
In troubleshooting, confirm
System Diagram
SYSTEM DIAGRAM
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Adjustment
ADJUSTMENT CAUTION / NOTICE / HINT *a Centering Bolt *b Standard Bolt HINT:
Centering bolts are used to install the hood hinges and hood lock. The hood and hood lock cannot be adjusted with the centering bolts installed. Substitute the centering bolts with standard bolts with washe
Display Disconnected (B15D6)
DESCRIPTION The multi-display assembly and radio receiver assembly are connected by AVC-LAN communication lines. This DTC is stored when an AVC-LAN communication error occurs between the multi-display assembly and radio receiver assembly. DTC No. Detection Item DTC Detection Condition Troub
