Lexus NX: Brake System (P1578)
Lexus NX Service Manual / Engine & Hybrid System / Cruise Control / Dynamic Radar Cruise Control System / Brake System (P1578)
DESCRIPTION
When a malfunction in the electronically controlled brake system is detected, DTC P1578 is stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
|---|---|---|---|---|
| P1578 | Brake System | When the power switch is on (IG) and the dynamic radar cruise control system is operating, a malfunction in the electronically controlled brake system is detected for 0.2 seconds or more. | Electronically controlled brake system | Hybrid vehicle control ECU |
PROCEDURE
| 1. | CHECK ELECTRONICALLY CONTROLLED BRAKE SYSTEM |
(a) Check the electronically controlled brake system.
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HINT:
If DTC P1578 is output by the dynamic radar cruise control system, perform troubleshooting for the electronically controlled brake system.
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How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT PRECAUTIONS WHEN TROUBLESHOOTING NOTICE:
Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output.
If the CAN communication s
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