Lexus NX manuals

Lexus NX: Diagnosis System

Lexus NX Service Manual / Vehicle Interior / Theft Deterrent / Keyless Entry / Smart Access System With Push-button Start (for Entry Function) / Diagnosis System

DIAGNOSIS SYSTEM

DESCRIPTION

(a) Smart access system with push-button start (for Entry Function) 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 smart access system with push-button start. 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.

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 Dtc Check / Clear

DTC CHECK / CLEAR CHECK FOR DTC NOTICE: When using the Techstream with the power switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds

 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

 Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART Smart Access System with Push-button Start (for Entry Function) DTC No. Detection Item Link B27A1 Open in Driver Side Electrical Antenna Circuit B27

SEE MORE:

 Rear Door RH Entry Lock Function does not Operate

DESCRIPTION If the entry lock function does not operate for the rear door RH only, but the entry unlock function operates, the request code is being transmitted properly from the for rear door RH. In this case, there may be a problem related to the lock sensor (connection between the certification E

 Accumulator Low Pressure (C1256)

DESCRIPTION The accumulator pressure sensor is built into the brake actuator (brake booster with master cylinder assembly) and detects the accumulator pressure. The skid control ECU (brake booster with master cylinder assembly) turns on the brake warning light / red (malfunction) and brake warning l

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