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

READ NEXT:

 Open Circuit in Power Source Circuit (C13A0,C13A5,C13B0)

DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note C13A0 Open Circuit in Power Source Circuit Both of following conditions are met: Power switc

 Short Circuit in Power Source Circuit (C13A1)

DESCRIPTION The following DTCs are stored when a malfunction occurs in the parking brake ECU assembly. DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note C13A1

 Engine Switch/Power Switch Malfunction (C13A2)

DESCRIPTION When the power switch is turned on (IG), power is supplied to the parking brake ECU assembly. This DTC is stored if the IG power source is not input to the parking brake ECU assembly when

SEE MORE:

 Installation

INSTALLATION CAUTION / NOTICE / HINT CAUTION: Wear protective gloves. Sharp areas on the parts may injure your hands. HINT: Use the same procedure for the RH and LH sides. The procedure listed below is for the LH side. PROCEDURE 1. INSTALL FRONT SEAT ASSEMBLY LH (a) Place the front seat asse

 Components

COMPONENTS ILLUSTRATION *1 COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY *2 FRONT FENDER TO COWL SIDE SEAL LH *3 FRONT FENDER TO COWL SIDE SEAL RH *4 FRONT WIPER ARM HEAD CAP *5 FRONT WIPER ARM LH *6 FRONT WIPER ARM RH *7 NO. 1 WINDSHIELD OUTSIDE MOULDING CLIP *8 WI

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