Lexus NX: Diagnosis System
DIAGNOSIS SYSTEM
DESCRIPTION
(a) The DCM (telematics transceiver) control the vehicle safety connect system functions. Safety connect system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). In some cases, a malfunction may be occurring in the safety connect system. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.
CHECK DLC3
(a) Check the DLC3.
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INSPECT AUXILIARY BATTERY VOLTAGE
(a) Measure the auxiliary battery voltage with the power switch off.
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the auxiliary battery.
CHECK INDICATOR
(a) When a malfunction is detected in the safety connect system, the manual (SOS) switch red indicator on the manual (SOS) switch illuminates to inform the driver of the malfunction.
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READ NEXT:
Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Telematics / Trouble
Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a pa
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Safety Connect System DTC No. Detection Item Link B153711 Telephone Sub Antenna Circuit Short to Ground B153713 Telephone Sub Antenna Circuit Open
SEE MORE:
Inspection
INSPECTION PROCEDURE 1. INSPECT SEPARATE TYPE REAR SEATBACK COVER RH (REAR SEATBACK HEATER ASSEMBLY RH) (for RH Side) (a) Check the separate type rear seatback cover RH (rear seatback heater assembly RH). (1) Measure the resistance according to the value(s) in the table below. Standard Resistance
Power Back Door cannot be Opened or Closed Using the Back Door Control Switch
DESCRIPTION When the power back door cannot be closed using the back door control switch, either of the following may be malfunctioning: 1) back door control switch circuit or 2) multiplex network door ECU. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: If the replacement, removal and installation
