Lexus NX: EPB System Malfunction (C13AF)
Lexus NX Service Manual / Brake / Brake Control / Dynamic Control Systems / Electronically Controlled Brake System / EPB System Malfunction (C13AF)
DESCRIPTION
The skid control ECU (brake booster with master cylinder assembly) is connected to the parking brake ECU assembly via CAN communication. If an electric parking brake system malfunction occurs, this code is output.
| DTC No. | Detection Item | INF Code | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|---|
| C13AF | EPB System Malfunction | 420 | Electric parking brake system malfunction signal continues for 1.5 seconds. | Parking brake ECU assembly | EPB: Electric parking brake system |
PROCEDURE
| 1. | CHECK FOR DTC (ELECTRIC PARKING BRAKE SYSTEM) |
(a) Check for electric parking brake system DTCs and record any codes that are output.
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| NEXT | .gif) | INSPECT ELECTRIC PARKING BRAKE SYSTEM |
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Terminals Of Ecu
TERMINALS OF ECU CHECK VEHICLE APPROACHING SPEAKER CONTROLLER (a) Disconnect the A80 vehicle approaching speaker controller connector. (b) Measure the voltage and resistance according to the value(s) in the table below. Terminal No. (Symbol) Wiring Color Terminal Description Condition Sp
Precaution
PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL NOTICE:
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable
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