Remote Up / Down Function does not Operate
When the ignition switch is ON and the window lock switch is off, the multiplex network master switch sends remote up/down signals to each power window regulator motor via the LIN communication line.
PROCEDURECHECK LIN COMMUNICATION SYSTEM
(a) Check for LIN communication system DTCs related to the power window control system (See page
).
OK:
LIN communication system DTCs are not output.
| NG | ![]() | GO TO LIN COMMUNICATION SYSTEM |
|
CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY (WINDOW LOCK SWITCH)
(a) Turn the window lock switch off and operate the switches on the multiplex network master switch. Check that the remote up/down function operates (See page OK: Remote up/down function operates. |
![]() |
| OK | ![]() | END |
| NG | ![]() | REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY |
Test yourself
A quick Toyota 4Runner quiz: every answer comes with an explanation and a link to the manual page.
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