Toyota Camry (XV70): ECU Malfunction (B1003)
Toyota Camry Repair Manual XV70 (2018-2024) / Power Source, Network / Networking / Can Communication System / 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
|
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| B |
| REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)
|
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DESCRIPTION
Detection Item Symptom
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Any of the following conditions are met:
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DESCRIPTION
Detection Item Symptom
Trouble Area Clearance Warning ECU Communication Stop Mode
Any of the following conditions are met:
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DESCRIPTION
Detection Item Symptom
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SEE MORE:
Components
COMPONENTS ILLUSTRATION
*1 LUGGAGE COMPARTMENT DOOR EMBLEM
*2 NO. 2 LUGGAGE COMPARTMENT DOOR NAME PLATE
● Non-reusable part
- - ILLUSTRATION
*1 NO. 3 LUGGAGE COMPARTMENT DOOR PLATE
- -
● Non-reusable part
On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE
1. INSPECT STOP LIGHT SWITCH ASSEMBLY (a) Disconnect the A81 stop light switch assembly connector.
(b) Measure the voltage and resistance on the wire harness side connector according to the value(s) in the table below.
Standard Voltage:
Tester C
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