Lexus NX: Vehicle Specifications have not been Stored (B2451)
DESCRIPTION
This DTC is output if the vehicle variation information is not written to the headlight ECU sub-assembly LH.
The headlight ECU sub-assembly LH outputs DTC B2451.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B2451 | Vehicle Specifications have not been Stored | Vehicle specification information not written | Headlight ECU sub-assembly LH |
CAUTION / NOTICE / HINT
NOTICE:
After the headlight ECU sub-assembly LH is replaced, vehicle information registration and initialization are necessary.
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PROCEDURE
| 1. | VEHICLE INFORMATION HEADLIGHT ECU SUB-ASSEMBLY LH |
(a) Register vehicle information for the headlight ECU sub-assembly LH.
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|
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| 2. | CHECK FOR DTC |
(a) Clear the DTCs.
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(b) Turn the power switch on (IG).
(c) Check for DTCs.
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OK:
DTC B2451 output does not occur.
| OK | .gif) | END (NORMAL AFTER VEHICLE INFORMATION REGISTERED) |
| NG | | REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH |
READ NEXT:
Right Headlight ECU Variation Error (B2455)
DESCRIPTION This DTC is output when a headlight ECU sub-assembly RH that is incompatible with the vehicle is installed. The headlight ECU sub-assembly LH outputs DTC B2455. DTC No. Detection Item
Left Headlight ECU Variation Error (B2456)
DESCRIPTION This DTC is output when a headlight ECU sub-assembly LH that is incompatible with the vehicle is installed. The headlight ECU sub-assembly LH outputs DTC B2456. DTC No. Detection Item
Control Module Communication Bus "A" Off (U0073,U0100,U0101,U0126,U0129,U0142,U0155,U0293)
DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area U0073 Control Module Communication Bus "A" Off Bus off condition is detected. CAN communication system U0
SEE MORE:
Parts Location
PARTS LOCATION ILLUSTRATION *1 MOBILE WIRELESS CHARGER CRADLE ASSEMBLY *2 CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) *3 INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - ACC FUSE - PANEL FUSE *4 NO. 2 ENGINE ROOM RELAY BLOCK - ECU-B NO.1 FUSE
Reassembly
REASSEMBLY CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH and LH sides.
The procedure listed below is for the LH side.
A bolt without a torque specification is shown in the standard bolt chart.
Click here PROCEDURE 1. REPAIR INSTRUCTION Click here 2. INSTALL NO. 3 BLAC
