Lexus NX: Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

Power Tilt and Power Telescopic Steering Column System

DTC No.

Detection Item

DTC Detection Condition

Link

B2603

Tilt and Telescopic Manual Switch Circuit Malfunction

When operating the tilt and telescopic switch, an abnormal voltage value is sent to the multiplex tilt and telescopic ECU.

B2610

Tilt Position Sensor or Tilt Motor Circuit Malfunction

Tilt operation stops within the operation range while operating.

B2611

Telescopic Position Sensor or Telescopic Motor Circuit Malfunction

Telescopic operation stops within the operation range while operating.

B2620

ECU Power Source Circuit Malfunction

The voltage of the ECU power source drops to 8 V or less and this condition continues for 10 seconds or more.

B2624

Vehicles Speed Malfunction

  • The auto away function is disabled with the last vehicle speed signal (If the power switch is turned off immediately after the vehicle comes to a sudden stop, the last vehicle speed signal may not be 0 km/h (0 mph).) of 10 km/h (6 mph) or more.
  • The vehicle speed signal is lost for 5 seconds or more and the auto away/return function is disabled.

U0142

Lost Communication with Main Body ECU

Lost communication with main body ECU (multiplex network body ECU)

U0208

Lost Communication with "Seat Control Module A"

Lost communication with front power seat switch

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 Tilt and Telescopic Manual Switch Circuit Malfunction (B2603)

DESCRIPTION Different voltage values are sent to the multiplex tilt and telescopic ECU by operating the tilt and telescopic switch. The multiplex tilt and telescopic ECU then judges which motor and in

 Tilt Position Sensor or Tilt Motor Circuit Malfunction (B2610)

DESCRIPTION The tilt motor is operated by the power source voltage supplied from the multiplex tilt and telescopic ECU and tilts the steering column up and down. The tilt position sensor (Hall IC) in

 Telescopic Position Sensor or Telescopic Motor Circuit Malfunction (B2611)

DESCRIPTION The telescopic motor is operated by the power source voltage supplied from the multiplex tilt and telescopic ECU and slides the steering column forward and backward. The telescopic positio

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 On-vehicle Inspection

ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT COOLING FAN MOTOR (a) Disconnect the cooling fan motor connector. (b) Check that the fan rotates smoothly by hand. (c) Check that the cooling fan motor turns smoothly when the battery is connected to the cooling fan motor connector. Click here

 Freeze Frame Data

FREEZE FRAME DATA FREEZE FRAME DATA (a) Whenever a DTC is detected, the headlight ECU sub-assembly or front recognition camera stores the current vehicle (sensor) state as freeze frame data. CHECK FREEZE FRAME DATA (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn t

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