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 |
READ NEXT:
Blind Spot Monitor Master Module Beam Axis Inspection Incomplete (C1ABB)
DESCRIPTION This DTC is stored when a beam axis inspection has not been performed for the blind spot monitor sensor LH. HINT: This DTC is always stored after replacing a blind spot monitor sensor. The
Blind Spot Monitor Slave Module Beam Axis Inspection Incomplete (C1ABC)
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
Short to GND or Open in Buzzer (C1ABE)
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:
Dtc Check / Clear
DTC CHECK / CLEAR CHECK FOR DTC (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 (e) Read the DTCs. CLEAR DT
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Before performing troubleshooting for the front radar sensor system, perform troubleshooting for the pre-collision system.
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*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. CUSTOMER PROBLEM ANALY
