Lexus NX manuals

Lexus NX: Deceleration Sensor (C1245)

Lexus NX Service Manual / Brake / Parking Brake / Electric Parking Brake System / Deceleration Sensor (C1245)

DESCRIPTION

The parking brake ECU assembly receives vehicle tilt information from the deceleration sensor (airbag ECU assembly) via CAN communication.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Memory

Note

C1245

Deceleration Sensor

One of the following conditions is met:

  • An error signal is sent from the deceleration sensor (airbag ECU assembly) for approx. 0.3 seconds.
  • While the deceleration sensor (airbag ECU assembly) signal is judged to be stuck, starting off and stopping the vehicle occurs 16 times.
  • Comparison error between deceleration sensor (airbag ECU assembly) 1 and deceleration sensor (airbag ECU assembly) 2 output values occurs for 60 seconds or more.

Deceleration sensor (Airbag ECU assembly)

Yes

An electric parking brake system malfunction is displayed on the multi-information display.

CAUTION / NOTICE / HINT

NOTICE:

When replacing the deceleration sensor (airbag ECU assembly), perform zero point calibration.

Click here

PROCEDURE

1.

CHECK DTC (ELECTRONICALLY CONTROLLED BRAKE SYSTEM)

(a) Check for DTC.

Click here

Chassis > ABS/VSC/TRAC > Trouble Codes
DTC is output

GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM

DTC is not output

2.

CHECK DTC (ELECTRIC PARKING BRAKE SYSTEM)

(a) Clear the DTC.

Click here

Chassis > Electric Parking Brake > Clear DTCs

(b) Turn the power switch off.

(c) Check for DTC.

Click here

Chassis > Electric Parking Brake > Trouble Codes
DTC is output

REPLACE AIRBAG ECU ASSEMBLY

DTC is not output

USE SIMULATION METHOD TO CHECK

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