Lexus NX: Inspection
INSPECTION
PROCEDURE
1. INSPECT INNER REAR VIEW MIRROR ASSEMBLY
(a) Inspect the operation of the electrochromic inner rear view mirror assembly.
(1) Connect a positive (+) lead from the battery to terminal 1 (IG) and a negative (-) lead to terminal 2 (E).
(2) Press the AUTO switch.
(3) Attach black colored tape to the forward sensor to prevent it from sensing.
(4) Light up the mirror with an electric light, and check that the mirror surface changes from bright to dark.
OK:
Mirror surface changes from bright to dark.
(5) Measure the voltage according to the value(s) in the table below.
| *1 | Black Colored Tape | *2 | Forward Sensor |
| *a | Bright | *b | Dark |
| *c | Battery | *d | Component without harness connected (Inner Rear View Mirror Assembly) |
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| 4 (EC+) - 5 (EC-) | Inner rear view mirror surface Bright → Dark | Below 1 V → 1.25 V |
If the result is not as specified, replace the inner rear view mirror assembly.
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