Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: 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

1.

CHECK DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

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

OK:

DTC B1003 is not output.

OK

USE SIMULATION METHOD TO CHECK

NG

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

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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:

Inspection
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Pattern Select Switch Power Mode Circuit
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Low Pitched Horn
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