Lexus NX: Emergency Call Switch Illumination Circuit
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for safety connect system.
Click here
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- Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
| 1. | CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY POWER SOURCE) |
(a) Disconnect the I183 DCM (telematics transceiver) connector.
(b) Disconnect the T7 map light assembly connector.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
| T7-5 (RRID) - Body Ground | Power switch on (IG) | 11 to 14 V |
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| I183-3 (SIG-) - T7-9 (GND3) | Always | Below 1 Ω |
| I183-3 (SIG-) or T7-9 (GND3) - Body ground | Always | 10 kΩ or higher |
| NG | .gif) | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
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| 2. | INSPECT MAP LIGHT ASSEMBLY (MANUAL [SOS] SWITCH) |
| (a) Remove the map light assembly. Click here |
|
(b) Apply battery voltage to the connector and check that the manual (SOS) switch illumination comes on.
OK:
| Measurement Condition | Condition | Specified Condition |
|---|---|---|
| Battery positive (+) → T7-5 (RRID) Battery negative (-) → T7-9 (GND3) | Always | Manual (SOS) switch illumination comes on |
| NG | | REPLACE MAP LIGHT ASSEMBLY (MANUAL [SOS] SWITCH) |
|
| 3. | REPLACE DCM (TELEMATICS TRANSCEIVER) |
(a) Replace the DCM (telematics transceiver).
Click here
NOTICE:
- The power switch must be off.
- Do not exchange the DCM (telematics transceiver) with one from another vehicle.
| NEXT | | PERFORM DCM ACTIVATION |
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Telephone And Gps Antenna
ComponentsCOMPONENTS ILLUSTRATION *1 DECK FLOOR BOX LH *2 NO. 3 DECK BOARD SUB-ASSEMBLY *3 REAR DECK FLOOR BOX *4 NEGATIVE AUXILIARY BATTERY TERMINAL N*m (kgf*cm, ft.*lbf):
SEE MORE:
Replacement
REPLACEMENT CAUTION / NOTICE / HINT NOTICE:
When the brake pedal is first depressed after replacing the brake pads or pushing back the disc brake piston, DTC C1214 may be output. As there is no malfunction, clear the DTC.
While the auxiliary battery is connected, even if the power switch is off
Removal
REMOVAL PROCEDURE 1. REMOVE MAP LIGHT ASSEMBLY (PERSONAL LIGHT) (a) Using moulding remover D, detach the 4 clips. (b) Disconnect the connectors and remove the map light assembly (personal light).
