DESCRIPTION
Detection Item | Symptom | Trouble Area |
---|---|---|
Combination Meter Mirror ECU Communication Stop Mode | Either condition is met:
|
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
Click here
Click here
HINT:
PROCEDURE
1. | CHECK FOR OPEN IN CAN BUS LINES (COMBINATION METER MIRROR ECU (HEADUP DISPLAY) BRANCH LINE) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the K1 combination meter mirror ECU (headup display) connector. |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
K1-4 (MPX1) - K1-5 (MPX2) | Cable disconnected from negative (-) battery terminal | 54 to 69 Ω |
NG | REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (COMBINATION METER MIRROR ECU (HEADUP DISPLAY)) |
|
2. | CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
(b) Reconnect the cable to the negative (-) battery terminal.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
---|---|---|
K1-1 (B) - Body ground | Always | 11 to 14 V |
K1-2 (IG) - Body ground | Engine switch on (IG) | 11 to 14 V |
OK | REPLACE COMBINATION METER MIRROR ECU (HEADUP DISPLAY) |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Can Communication System: Lost Communication with Rear Gate Module (U0230)
DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area Note U0230 Lost Communication with Rear Gate Module No communication from the multiplex network door ECU continues.
Multiplex network door ECU branch line or connector
Power source circuit of multiplex ...
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Power Tilt And Power Telescopic Steering Column System: Vehicles Speed Malfunction (B2624)
DESCRIPTION The multiplex tilt and telescopic ECU forms a network with the ECUs of other systems via CAN communication. Each ECU informs the other ECUs that it is connected to the network by sending a specified signal (periodic signal) onto the communication bus on a regular basis. The multiplex til ...