DESCRIPTION
The ECM communicates with the generator assembly via LIN communication. If a LIN communication error is detected, the ECM stores this DTC.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Memory | Note |
---|---|---|---|---|---|---|
P161A87 | Lost Communication with Alternator Missing Message | Generator assembly or ECM communication stops for approximately 17 minutes or more with the engine switch on (IG). (1 trip detection logic) |
| Charge warning light comes on | DTC stored | SAE Code: P161A |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. | CHECK CHARGING SYSTEM |
(a) Check the charging system.
Click here
NG | REPAIR OR REPLACE CHARGING SYSTEM |
|
2. | CHECK HARNESS AND CONNECTOR (ECM - GENERATOR ASSEMBLY) |
(a) Disconnect the D2 ECM connector.
(b) Disconnect the D48 generator assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
D48-2 (LIN) - D2-135 (LIN) | Always | Below 1 Ω |
D48-2 (LIN) or D2-135 (LIN) - Body ground | Always | 10 kΩ or higher |
OK | REPLACE GENERATOR ASSEMBLY |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Power Back Door System (w/ Outside Door Control Switch): Power Back Door cannot be Operated Using Kick Sensor
DESCRIPTION The kick door control sensor turns the sensing circuit on or off based on the vehicle speed and IG and ACC signals sent from the main body ECU (multiplex network body ECU) via LIN communication. When the kick door control sensor detects a kick operation, it sends an operation signal to t ...
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Automatic Transaxle System: Precaution
PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL NOTICE: When disconnecting the cable from the negative (-) battery terminal, initialize the following system(s) after the cable is reconnected: System See Procedure Lane Control System Pre-collision System ...