Toyota Tacoma (2015-2018) Service Manual: ECU Malfunction (B1003)

Toyota Tacoma (2015-2018) Service Manual / Can Communication / Can Communication System / ECU Malfunction (B1003)

DESCRIPTION

DTC No.	DTC Detection Condition	Trouble Area
B1003	A malfunction in the non-volatile storage of the central gateway ECU (network gateway ECU) is detected.	Central gateway ECU (network gateway ECU)

PROCEDURE

CHECK DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Enter the following menus: Body Electrical / Central Gateway / Trouble Codes.

OK:

DTC B1003 is not output.

USE SIMULATION METHOD TO CHECK

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

Fail-safe Chart

FAIL-SAFE CHART 1. FAIL-SAFE FUNCTION (a) When communication fails in any of the CAN bus lines (communication lines), a fail-safe function(s) will operate. The fail-safe function that is specified ...

Clearance Warning ECU Communication Stop Mode

DESCRIPTION Detection Item Symptom Trouble Area Clearance Warning ECU Communication Stop Mode Either Condition is met: Commu ...

Other materials:

Removal
REMOVAL PROCEDURE 1. REMOVE FUEL DELIVERY PIPE ASSEMBLY LH (FUEL PRESSURE SENSOR) (See page ) NOTICE: Do not remove the fuel pressure sensor from the fuel delivery pipe sub-assembly LH. If a fuel pressure sensor is removed, replace the fuel delivery pipe sub-assembly LH (fu ...

How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: Perform the following procedure to troubleshoot the dynamic radar cruise control system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT ...

Front Speed Sensor RH Output Malfunction (C1413,C1414)
DESCRIPTION Refer to DTCs C1401 and C1402 (See page ). DTC No. Detection Item DTC Detection Condition Trouble Area C1413 Front Speed Sensor RH Output Malfunction Any of the following is detected: An o ...