Lexus NX: Destination Information Undefined (C1AB8)
DESCRIPTION
This DTC is stored when correct destination information is not sent from the main body ECU (multiplex network body ECU) and destination information cannot be confirmed after a blind spot monitor sensor has been replaced.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
C1AB8 | Destination Information Undefined | The blind spot monitor sensor cannot communicate with the main body ECU (multiplex network body ECU). | -
CAN communication system
-
Main body ECU (multiplex network body ECU)
-
Blind spot monitor sensor LH
-
Blind spot monitor sensor RH
| - |
CAUTION / NOTICE / HINT
NOTICE:
-
When checking for DTCs, make sure that the blind spot monitor main switch (combination switch assembly) is on.
-
Recognition code registration is necessary when replacing the main body ECU (multiplex network body ECU).
-
If the main body ECU (multiplex network body ECU) is replaced, refer to Registration.
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PROCEDURE
1. | CHECK DTC (CAN COMMUNICATION SYSTEM) |
(a) Check for CAN communication system DTCs.
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OK:
CAN communication system DTCs are not output.
OK | | |
2. | REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
(a) Replace the main body ECU (multiplex network body ECU).
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NEXT | | |
(a) Clear the DTCs.
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Body Electrical > Blind Spot Monitor Master > Clear DTCs Body Electrical > Blind Spot Monitor Slave > Clear DTCs
(b) Recheck for DTCs and check if the same DTC is output again.
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Body Electrical > Blind Spot Monitor Master > Trouble Codes Body Electrical > Blind Spot Monitor Slave > Trouble Codes
Result | Proceed to |
DTC C1AB8 is not output | A |
DTC C1AB8 is output from the blind spot monitor sensor LH (master) | B |
DTC C1AB8 is output from the blind spot monitor sensor RH (slave) | C |
A | | END (MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU] WAS DEFECTIVE) |
READ NEXT:
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DESCRIPTION This DTC is stored when a beam axis inspection has not been performed for the blind spot monitor sensor RH. HINT: This DTC is always stored after replacing a blind spot monitor sensor. The
DESCRIPTION This DTC is stored when the blind spot monitor sensor RH detects a ground short or open in the RCTA buzzer (blind spot monitor buzzer) circuit. DTC No. Detection Item DTC Detection
SEE MORE:
COMPONENTS ILLUSTRATION *1 ELECTRICAL KEY ANTENNA *2 QUARTER OUTSIDE MOULDING SUB-ASSEMBLY LH *3 QUARTER OUTSIDE MOULDING SUB-ASSEMBLY RH *4 REAR BUMPER COVER *5 REAR FLOOR SIDE MEMBER COVER - - N*m (kgf*cm, ft.*lbf): Specified torque - -
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