Lexus NX: ECU Malfunction (B1003)
DESCRIPTION
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
|---|---|---|---|---|
| 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) | Central gateway ECU (network gateway ECU) |
PROCEDURE
| 1. | RECONFIRM DTC OUTPUT |
(a) Connect the Techstream to the DLC3.
(b) Turn the power 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 central gateway ECU (network gateway ECU) (Techstream display: Central Gateway) | A |
| DTC B1003 is output from the central gateway ECU (network gateway ECU) (Techstream display: Central Gateway) | B |
| A | .gif) | USE SIMULATION METHOD TO CHECK |
| B | | REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) |
READ NEXT:
Lost Communication with "Door Control Module A" (U0199)
DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from U0199 Lost Communication with "Door Control Module A" There is no communication from the oute
Lost Communication with "Door Control Module B" (U0200)
DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from U0200 Lost Communication with "Door Control Module B" There is no communication from the oute
Lost Communication with "Seat Control Module A" (U0208)
DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from U0208 Lost Communication with "Seat Control Module A" There is no communication from the fron
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Refueling
Opening the fuel tank cap
Before refueling the vehicle
Turn the power switch off and
ensure that all the doors and windows
are closed.
Confirm the type of fuel.
■Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your vehicle
has a fuel tank opening that onl
Removal
REMOVAL CAUTION / NOTICE / HINT CAUTION: Wear protective gloves. Sharp areas on the parts may injure your hands. PROCEDURE 1. REMOVE REAR SEAT CUSHION ASSEMBLY Click here 2. REMOVE BENCH TYPE REAR SEAT CUSHION COVER (REAR SEAT CUSHION HEATER) (a) Remove the 6 hog rings. (b) Remov
