Lexus NX: Diagnosis System
DIAGNOSIS SYSTEM
DESCRIPTION
(a) Smart access system with push-button start (for Start Function) data and Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. 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 (IG OFF)
If the voltage is below 11 V, recharge or replace the auxiliary battery.
READ NEXT:
Dtc Check / Clear
DTC CHECK / CLEAR 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 or less until
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Smart Access System with Push-button Start (for Start Function) DTC No. Detection Item Link B2271 Ignition Hold Monitor Malfunction B2274 ACC Moni
Ignition Hold Monitor Malfunction (B2271)
DESCRIPTION This DTC is stored when a malfunction in the IG circuit and IG hold circuit in the certification ECU (smart key ECU assembly) is detected. DTC No. Detection Item DTC Detection Condi
SEE MORE:
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE: When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored. HINT:
Installation
INSTALLATION PROCEDURE 1. INSTALL TIMING CHAIN COVER ASSEMBLY (a) Apply a light coat of engine oil to the 3 new gaskets. (b) Install the 3 gaskets to the stiffening crankcase assembly. (c) Align the positions of the drive rotor spline and crankshaft timing sprocket as shown in the illustration.
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