Lexus NX: 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 Condition | Trouble Area | Note |
|---|---|---|---|---|
| C1ABE | Short to GND or Open in Buzzer | Both of the following conditions are met:
|
| - |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- When checking for DTCs, make sure that the blind spot main switch (combination switch assembly) is on.
- Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
| 1. | CHECK DTC |
(a) Clear the DTCs.
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(b) Recheck for DTCs and check if the same DTC is output again.
Body Electrical > Blind Spot Monitor Slave > Trouble CodesOK:
No DTCs are not output.
| OK | .gif) | USE SIMULATION METHOD TO CHECK |
|
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| 2. | CHECK HARNESS AND CONNECTOR (RCTA BUZZER [BLIND SPOT MONITOR BUZZER] - BLIND SPOT MONITOR SENSOR RH AND BATTERY) |
(a) Disconnect the P42 RCTA buzzer (blind spot monitor buzzer) connector.
(b) Disconnect the X1 blind spot monitor sensor RH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| P42-2 (BZN) - X1-3 (BUZ) | Always | Below 1 Ω |
| P42-2 (BZN) - Body ground | Always | 10 kΩ or higher |
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
| P42-1 (BZP) - Body ground | Power switch on (IG) | 11 to 14 V |
| P42-1 (BZP) - Body ground | Power switch off | Below 1 V |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 3. | CHECK RCTA BUZZER (BLIND SPOT MONITOR BUZZER) |
(a) Replace the RCTA buzzer (blind spot monitor buzzer).
Click here
(b) Clear the DTCs.
Click here
(c) Recheck for DTCs and check if the same DTC is output again.
Body Electrical > Blind Spot Monitor Slave > Trouble CodesOK:
No DTCs are not output.
| OK | | END (RCTA BUZZER [BLIND SPOT MONITOR BUZZER] WAS DEFECTIVE) |
| NG | | REPLACE BLIND SPOT MONITOR SENSOR RH |
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Inspection
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