DTC P1578 Brake System Malfunction
DESCRIPTION
This DTC is output when the VSC system has a problem. Check the VSC system when this DTC is output
DTC No. |
DTC Detection Condition |
Trouble Area |
P1578 |
The ECM receives a brake system error signal for 0.2 sec. or more while the dynamic laser cruise control is in operation | VSC system |
INSPECTION PROCEDURE
HINT: This circuit uses CAN communication. Therefore, if there are any malfunctions in the communication circuit, one or more DTCs in the CAN communication system are output.
1 CHECK BRAKE CONTROL SYSTEM
Refer to HOW TO PROCEED WITH TROUBLESHOOTING
END
Diagnosis system
1. CHECK DLC3
The ECU uses ISO 15765-4 for communication.
The terminal arrangement of the DLC3 complies
with SAE J1962 and matches the ISO 15765-4
format.
NOTICE:
*: Before measuring the resistance, leave the
vehicle as is for at least 1 minute and do not
operate the igniti ...
Removal
1. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
2. REMOVE FRONT DOOR SCUFF PLATE LH
3. REMOVE COWL SIDE TRIM SUB-ASSEMBLY LH
4. REMOVE LOWER INSTRUMENT PANEL FINISH
PANEL SUB-ASSEMBLY LH (See page IP-6)
5. REMOVE TIRE PRESSURE WARNING RESET SWITCH
(a) Disengage the 2 claws and remove t ...
Reassembly
1. INSTALL FRONT AXLE HUB LH BEARING
(a) Using SST(s) and a press, install a new front axle
hub LH bearing to the steering knuckle LH.
SST 09950-60020 (09951-00810), 09950-70010
(09951-07100)
2. INSTALL DISC BRAKE DUST COVER FRONT LH
(a) Place the disc brake dust cover front LH and using ...