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:
Lost Communication With Multi-axis Acceleration Sensor Module Missing Message (U012587,U012687,U012987,U013187,U015587,U029387)
DESCRIPTION When a malfunction is detected between various ECUs and sensors, these DTCs are stored. DTC No. Detection Item DTC Detection Condition Trouble Area U012587 Lost Communication With Multi-axis Acceleration Sensor Module Missing Message 3 seconds after the power switch is t
Control Module Communication Bus Off (U0073,U0100,U0126,U0129,U0140,U0163,U0233,U0265-U0268,U1110)
DESCRIPTION These DTCs are stored if there is a malfunction in the CAN communication system connected to the parking assist ECU. HINT: If CAN communication system DTCs are stored, they may also be stored in other systems. DTC No. Detection Item DTC Detection Condition Trouble Area U0073
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