Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Software Incompatibility with Body Control Module "B" (U1331)

Toyota Tacoma 2015-2018 Service Manual / Park Assist / Monitoring / Blind Spot Monitor System / Software Incompatibility with Body Control Module "B" (U1331)

DESCRIPTION

This DTC is stored when the destination information of the main body ECU (multiplex network body ECU) does not match that of the blind spot monitor sensors.

DTC Code

DTC Detection Condition

Trouble Area

U1331

Destination information of the main body ECU (driver side junction block assembly) and blind spot monitor sensor do not match.

  • Main body ECU (multiplex network body ECU)
  • Blind spot monitor sensor LH
  • Blind spot monitor sensor RH

CAUTION / NOTICE / HINT

NOTICE:

When checking for DTCs, make sure that the blind spot monitor main switch assembly (warning canceling switch assembly) is on.

PROCEDURE

1.

CONFIRM PART NUMBER (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))

(a) Check the main body ECU (multiplex network body ECU) part number.

(1) Check if the part number of the main body ECU (multiplex network body ECU) installed on the vehicle is correct.

OK:

The part number is correct.

NG

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

OK

2.

CHECK DTC

(a) Clear the DTCs (See page (b) Recheck for DTCs and check if the same DTC is output again. ).

(b) Recheck for DTCs and check if the same DTC is output again.

Result

Result

Proceed to

No DTC is output

A

DTC is output from the blind spot monitor sensor LH (master)

B

DTC is output from the blind spot monitor sensor RH (slave)

C

A

USE SIMULATION METHOD TO CHECK

B

REPLACE BLIND SPOT MONITOR SENSOR LH

C

REPLACE BLIND SPOT MONITOR SENSOR RH

Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Blind Spot Monitor System DTC Code Detection Item See page C1A45 Vehicle Speed Sensor ...

Lost Communication with Blind Spot Monitor Slave Module (U0232)
DESCRIPTION This DTC is stored when the blind spot monitor sensor LH judges that there is a communication problem with the blind spot monitor sensor RH. DTC Code DTC Detectio ...

Other materials:

Skid Control Buzzer Circuit (C1A4A)
DESCRIPTION Based on dynamic radar cruise control system operation, the forward recognition camera provides warnings to the driver by sounding the skid control buzzer. DTC C1A4A is stored when a malfunction is detected in the skid control buzzer circuit. DTC No. Detectio ...

Installation
INSTALLATION PROCEDURE 1. INSTALL FRONT DRIVE SHAFT (a) Coat the spline of the inboard joint shaft with gear oil. (b) Align the shaft splines and install the front drive shaft with a brass bar and hammer. NOTICE: Set the snap ring with the opening side facing downward. Be caref ...

Diagnosis System
DIAGNOSIS SYSTEM 1. DESCRIPTION (a) The certification ECU (smart key ECU assembly) and ECM control the vehicle engine immobiliser system functions. Engine immobiliser system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). In some cases, a ...

В© 2011-2022 Copyright www.ttguide.net