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 > Using the air conditioning
system and defogger: Lexus Climate
Concierge
The climate control seats are automatically controlled according to the
set
temperature of the air conditioning system, outside temperature, cabin
temperature,
etc. Lexus Climate Concierge allows a comfortable condition to be
maintained without adjusting each system.
Front automatic air ...
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Panoramic Moon Roof System: Position Initialization Incomplete (B2343)
DESCRIPTION This DTC is stored when the sliding roof ECU (sliding roof drive gear assembly) or roof sunshade ECU (sliding roof drive gear assembly) has not been initialized. Sliding Roof DTC No. Detection Item DTC Detection Condition Trouble Area B2343 Position Initialization Incomple ...