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 | .gif) |
USE SIMULATION METHOD TO CHECK |
| NG | |
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:
Back-up Light Switch
Components
COMPONENTS
ILLUSTRATION
Inspection
INSPECTION
PROCEDURE
1. INSPECT BACK-UP LIGHT SWITCH ASSEMBLY
(a) Measure the resistance according to the value(s) in the table below.
Text in Illustration
*a
Pushed
...
Inspection
INSPECTION
PROCEDURE
1. INSPECT FUEL INJECTOR ASSEMBLY
NOTICE:
This inspection aims at inspecting the fuel injectors for opens or shorts, because
the fuel injectors of this vehicle are a high-pressure type and cannot be inspected
for fuel injection volume.
(a) Measure the resistance accordi ...
Refueling
Opening the fuel tank cap
Perform the following steps to open the fuel tank cap.
■ Before refueling the vehicle
Turn the engine switch off and ensure that all the doors and windows are closed.
■ Opening the fuel tank cap
Open the fuel filler door.
Turn the fuel tank cap slowly ...
