DESCRIPTION
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| B1003 | ECU Malfunction | The network gateway ECU detects an internal malfunction. | Network gateway ECU | - |
PROCEDURE
| 1. | RECONFIRM DTC OUTPUT |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(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 network gateway ECU (Techstream display: Central Gateway) | A |
| DTC B1003 is output from the network gateway ECU (Techstream display: Central Gateway) | B |
| A | | USE SIMULATION METHOD TO CHECK |
| B | | REPLACE NETWORK GATEWAY ECU |
Diagnostic Trouble Code Chart
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