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). |
| - |
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.
| NG | .gif) | GO TO CAN COMMUNICATION SYSTEM |
|
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| 2. | REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
(a) Replace the main body ECU (multiplex network body ECU).
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|
| 3. | CHECK DTC |
(a) Clear the DTCs.
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(b) Recheck for DTCs and check if the same DTC is output again.
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| 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) |
| B | | REPLACE BLIND SPOT MONITOR SENSOR LH |
| C | | REPLACE BLIND SPOT MONITOR SENSOR RH |
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Short to GND or Open in Buzzer (C1ABE)
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