TERMINALS OF ECU
HINT:
Check from the rear of the connector while it is connected to the components.
DCM (TELEMATICS TRANSCEIVER)
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| J157-1 (+B) - J157-20 (E) | Y - W-B | Power source (+B) | Always | 11 to 14 V |
| J157-20 (E) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
| J157-19 (IG2) - J157-20 (E) | B - W-B | Power source (IG) | Engine switch on (IG) | 11 to 14 V |
| Engine switch off | Below 1 V | |||
| J157-25 (CANP) | R | CAN communication signal | - | - |
| J157-26 (CANN) | W | CAN communication signal | - | - |
| J157-30 (SLPD) - J157-20 (E) | B - W-B | Steering lock bar position signal | Steering locked | 11 to 14 V |
| Steering unlocked | Below 1.5 V |
CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
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Problem Symptoms Table
Dtc Check / ClearLexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Can Communication System: Certification ECU Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area Certification ECU Communication Stop Mode Either condition is met:
"Certification (Smart)" is not displayed on the CAN Bus Check screen of the Techstream.
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Communication system DTCs (DTCs that start with U) that corresp ...
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Intelligent Clearance Sonar System: 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 probability in the "Suspected Area" column of the table. Check each symptom by checking the suspect ...