Lexus NX: AUTO Power Retract Mirrors do not operate
DESCRIPTION
The outer mirror switch assembly (mirror retract switch) sends the auto retractable outer mirror switch signal to the main body ECU (multiplex network body ECU). The main body ECU (multiplex network body ECU) sends the auto retract/return signal to the outer rear view mirror assemblies, which then control the mirrors.
When the main body ECU (multiplex network body ECU) receives a door lock output signal while the outer mirror switch assembly (mirror retract switch) is in the auto retract position, the main body ECU (multiplex network body ECU) operates the retract motors built into the outer rear view mirror assemblies to retract or return the outer rear view mirror assemblies.
WIRING DIAGRAM
.png)
CAUTION / NOTICE / HINT
NOTICE:
-
If necessary, the function can be set to the default setting through the customize function.
Click here
.gif)
-
If the main body ECU (multiplex network body ECU) is replaced, refer to Registration.
Click here
PROCEDURE
| 1. | CHECK WIRELESS DOOR LOCK CONTROL SYSTEM |
(a) Check the wireless door lock control system.
Click here
OK:
Wireless door lock control system is normal.
| NG | .gif) | GO TO WIRELESS DOOR LOCK CONTROL SYSTEM |
|
.gif)
| 2. | CHECK SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function) |
(a) Check the smart access system with push-button start (for Entry Function).
Click here
OK:
Smart access system with push-button start (for Entry Function) is normal.
| NG | | GO TO SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function) |
|
| 3. | INSPECT OUTER MIRROR SWITCH ASSEMBLY (MIRROR RETRACT SWITCH) |
(a) Remove the outer mirror switch assembly.
Click here
(b) Inspect the outer mirror switch assembly.
Click here
| NG | | REPLACE OUTER MIRROR SWITCH ASSEMBLY |
|
| 4. | CHECK HARNESS AND CONNECTOR (MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU] - OUTER MIRROR SWITCH ASSEMBLY [MIRROR RETRACT SWITCH]) |
(a) Disconnect the I47 main body ECU (multiplex network body ECU) connector.
(b) Disconnect the M14 outer mirror switch assembly (mirror retract switch) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| I47-15 (RTR) - M14-12 (MR) | Always | Below 1 Ω |
| I47-15 (RTR) or M14-12 (MR) - Body ground | Always | 10 kΩ or higher |
| OK | | REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
READ NEXT:
Relay
On-vehicle InspectionON-VEHICLE INSPECTION PROCEDURE 1. INSPECT NO. 1 MIRROR RELAY (a) Remove the No. 1 mirror relay. (b) Measure the resistance according to the value(s) in the table below. Stand
SEE MORE:
Sleep Operation Failure of Occupant Classification ECU (B1796)
DESCRIPTION During sleep mode, the occupant detection ECU monitors the condition of each sensor while the power switch is off. In this mode, if the occupant detection ECU detects an internal malfunction, DTC B1796 is stored. DTC No. Detection Item DTC Detection Condition Trouble Area B1
Blower Motor Circuit
DESCRIPTION The blower with fan motor sub-assembly is operated by signals from the air conditioning amplifier assembly. Blower motor speed signals are transmitted in accordance with changes in the duty ratio. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
Inspect the fuses for circuits related t
