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:
Installation
INSTALLATION
PROCEDURE
1. INSTALL CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Intake Side of
Bank 1)
(a) Apply engine oil to a new O-ring and install it to the camshaft timing
oil control solenoid assembly in the locations shown in the illustration.
Text in Illustration ...
Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) When troubleshooting OBD II (On-Board Diagnostics) vehicles, an OBD II scan
tool (complying with SAE J1978) must be connected to the DLC3 (Data Link Connector
3) of the vehicle. Various data in the vehicle ECM (Engine Control Module) can be
then read.
(b) ...
Installation
INSTALLATION
PROCEDURE
1. INSTALL COOLER (ROOM TEMPERATURE SENSOR) THERMISTOR
(a) Connect the cooler air hose.
(b) Connect the connector.
(c) Engage the 2 claws to connect the cooler (room temperature sensor ) thermistor.
2. INSTALL INSTRUMENT PANEL LOWER FINISH PANEL SUB-ASSEMBLY RH
3. I ...
