Lexus NX: Switch Lights of Remote Touch do not Illuminate
DESCRIPTION
Power is supplied to the remote touch illumination when the light control switch is in the tail or head position.
WIRING DIAGRAM
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CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuse for circuits related to this system before performing the following procedure.
PROCEDURE
| 1. | CONFIRM SYMPTOMS |
| (a) Perform the following procedure and check the switch illumination again. (1) If the vehicle is in a bright area, move it to a dark area. HINT: When the vehicle is in a bright area, the switch illumination may not turn on due to the automatic dimmer function. (2) Set the rheostat to maximum brightness. HINT: If the brightness of the rheostat is set to low, switch illumination may not be recognized even when the switch illumination turns on. (3) If the light control switch is in the AUTO position, turn the switch to the tail or head position. HINT: If the light control switch is in the AUTO position, the switch illumination will not turn on unless the surrounding area is dark. OK: Switch illumination turns on. |
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| OK | .gif) | END |
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| 2. | REMOTE TOUCH SELF CHECK (SWITCH ILLUMINATION CHECK) |
(a) Enter self-diagnostic mode.
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| (b) Operate the remote touch screen diagonally from the upper left to the lower right and check that the brightness of the switch illumination changes. NOTICE: Since the remote touch screen may recognize a pinch in/out or flick operation if operated with 2 fingers, always use 1 finger to operate the remote touch in self-diagnostic mode. OK: Brightness changes according to touch screen operation. |
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| NG | | REPLACE REMOTE OPERATION CONTROLLER ASSEMBLY (REMOTE TOUCH) |
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| 3. | CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL CIRCUIT) |
| (a) Disconnect the remote operation controller assembly (remote touch) connector. |
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(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
| I71-2 (ILL+) - Body ground | Power switch oo (IG) Light control switch in tail or head position | 11 to 14 V |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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| 4. | CHECK HARNESS AND CONNECTOR (REMOTE OPERATION CONTROLLER ASSEMBLY [REMOTE TOUCH] - COMBINATION METER ASSEMBLY) |
(a) Disconnect the I71 remote operation controller assembly (remote touch) connector.
(b) Disconnect the I10 combination meter assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| I71-5 (ILL-) - I10-39 (ILL-) | Always | Below 1 Ω |
| OK | | REPLACE REMOTE OPERATION CONTROLLER ASSEMBLY (REMOTE TOUCH) |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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