Lexus NX: 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

B27A2

Open in Front Passenger Side Electrical Antenna Circuit

B27A3

Open in Rear Door Electrical Antenna Circuit, Drivers Side

B27A4

Open in Rear Door Electrical Antenna Circuit, Front Passengers Side

B27A5

Open in Front Floor Electrical Key Oscillator Circuit

B27A6

Open in Rear Floor Electrical Key Oscillator Circuit

B27A7

Open in Inside Luggage Compartment Electrical Key Oscillator Circuit

B27A8

Open in Outside Luggage Compartment Electrical Key Antenna Circuit

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 Operation History List

OPERATION HISTORY LIST NOTICE: The cause of a malfunction is stored in the RAM or EEPROM in the certification ECU (smart key ECU assembly). As the cause of a malfunction stored in the RAM will be c

 Open in Driver Side Electrical Antenna Circuit (B27A1)

DESCRIPTION The certification ECU (smart key ECU assembly) generates a request signal and transmits the signal to the front door outside handle assembly (for driver door) (electrical key antenna) at i

 Open in Front Passenger Side Electrical Antenna Circuit (B27A2)

DESCRIPTION The certification ECU (smart key ECU assembly) generates a request signal and transmits the signal to the front door outside handle assembly (for front passenger door) (electrical key ante

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 Lost Communication With TCM (U0101,U0122,U0124,U0126,U0293)

DESCRIPTION The absorber control ECU receives signals from the skid control ECU (brake booster with master cylinder assembly), steering sensor, airbag ECU assembly (built into acceleration sensor), ECM and hybrid vehicle control ECU via CAN communication. When DTCs indicating a CAN communication sys

 Dtc Check / Clear

DTC CHECK / CLEAR DTC CHECK USING TECHSTREAM (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 / Air Conditioner / Trouble Codes. (e) Check for DTCs. Click here Body Electrical > Air Conditioner &

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