Toyota CH-R Service Manual: ECU Malfunction (B1003)
DESCRIPTION
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Note |
|---|---|---|---|---|
|
B1003 |
ECU Malfunction |
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. |
RECONFIRM DTC OUTPUT |
(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.
Body Electrical > Central Gateway > Trouble Codes|
Result |
Proceed to |
|---|---|
|
DTC B1003 is not output from the central gateway ECU (network gateway ECU) |
A |
|
DTC B1003 is output from the central gateway ECU (network gateway ECU) |
B |
| A | .gif) |
USE SIMULATION METHOD TO CHECK
|
.gif)
| B | |
REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) |
Data List / Active Test
DATA LIST / ACTIVE TEST
NOTICE:
In the table below, the values listed under "Normal Condition" are reference
values. Do not depend solely on these reference values when deciding whether ...
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Diagnostic Trouble Code Chart
DTC No.
Detection Item
Trouble Area
Link
B1003
ECU Malfunction
...
Other materials:
Toyota CH-R Service Manual > Back Door Outside Garnish: Removal
REMOVAL
PROCEDURE
1. REMOVE PACKAGE TRAY TRIM PANEL ASSEMBLY (w/ Package Tray Trim)
Click here
2. REMOVE TONNEAU COVER ASSEMBLY (w/ Tonneau Cover)
Click here
3. REMOVE BACK DOOR TRIM UPPER PANEL ASSEMBLY
Click here
4. REMOVE BACK DOOR SIDE GARNISH LH
Click here
5. R ...
Toyota CH-R Service Manual > Brake Actuator: On-vehicle Inspection
ON-VEHICLE INSPECTION
CAUTION / NOTICE / HINT
PROCEDURE
1. CONNECT TECHSTREAM
(a) Connect the Techstream to the DLC3 with the ignition switch off.
(b) Start the engine and run it at idle.
(c) Turn the Techstream on.
(d) Enter the following menus: Chassis / ABS/VSC/TRC/EPB / Active Test.
HINT ...
Toyota C-HR (AX20) 2023-2026 Owner's Manual
Toyota CH-R Owners Manual
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