TERMINALS OF ECM
CHECK ECM
HINT:
The standard normal voltage 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 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 |
|---|---|---|---|---|
| D2-53 (E1) - Body ground | BR - Body ground | Ground | Always | Below 1 Ω |
| A37-1 (BATT) - D2-53 (E1) | G - BR | Battery (for measuring battery voltage and for ECM memory) | Always | 11 to 14 V |
| D2-135 (LIN) - Body ground | B - Body ground | LIN communication line | Engine switch off (while LIN communication stopped) | 10 kΩ or higher |
Problem Symptoms Table
Diagnosis SystemLexus RX (RX 350L, RX450h) 2016-2026 Owners Manual > Steps to take in
an emergency: If a warning light turns on
or a warning buzzer
sounds
Calmly perform the following actions if any of the warning lights comes
on or
flashes. If a light comes on or flashes, but then goes off, this does not
necessarily
indicate a malfunction in the system. However, if this continues to occur,
have the vehicle inspected by your Lexus dealer.
Warn ...
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Power Steering System: 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 Malfunction Fail-safe Operation EPS warning light Buzzer
Torque sensor (electric po ...