DESCRIPTION
This DTC is stored when a malfunction is detected in the vehicle stability control system. Check the vehicle stability control system when DTC P1578 is stored.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
P1578 |
Brake System |
While the vehicle speed is 36 km/h (22 mph) or more and the dynamic radar cruise control system is operating, a malfunction in the vehicle stability control system is detected for 0.2 seconds or more. |
|
CAUTION / NOTICE / HINT
NOTICE:
w/o Smart Key System: Click here
w/ Smart Key System: Click here
Click here
PROCEDURE
1. |
CHECK FOR DTCs (VEHICLE STABILITY CONTROL SYSTEM) |
(a) Check for DTCs.
Click here
Result |
Proceed to |
---|---|
DTCs are not output |
A |
Vehicle stability control system DTCs are output |
B |
B | ![]() |
GO TO VEHICLE STABILITY CONTROL SYSTEM |
|
2. |
CHECK FOR DTCs (RADAR CRUISE1) |
(a) Clear the DTCs.
Click here
(b) Perform the following to make sure that the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the malfunction cannot be detected.
(c) Check for DTCs.
Click here
Result |
Proceed to |
---|---|
DTC P1578 is not output |
A |
DTC P1578 is output |
B |
A | ![]() |
USE SIMULATION METHOD TO CHECK |
|
3. |
REPLACE ECM |
(a) Replace the ECM.
Click here
|
4. |
CHECK FOR DTCs (RADAR CRUISE1) |
(a) Clear the DTCs.
Click here
(b) Perform the following to make sure that the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the malfunction cannot be detected.
(c) Check for DTCs.
Click here
Result |
Proceed to |
---|---|
DTC P1578 is not output |
A |
DTC P1578 is output |
B |
A | ![]() |
END |
B | ![]() |
REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) |
Front Airbag Sensor RH Circuit Malfunction (B1610/13)
DESCRIPTION
The front airbag sensor RH consists of parts such as the diagnostic circuit and
the frontal detection sensor.
When the airbag sensor assembly receives signals from the frontal deceleration
sensor, it determines whether or not the SRS should be activated.
DTC B1610/13 is set when a ...
Fail-safe Chart
FAIL-SAFE CHART
1. FAIL SAFE OPERATION
If there is a problem with any sensor signals or hydraulic brake booster
systems, the skid control ECU prohibits the power supply to the actuator
in the hydraulic brake booster and informs the ECM of VSC system failure.
The hydraulic brake b ...
Hazard Warning Switch Circuit
DESCRIPTION
The combination meter assembly receives information signals from the telltale
light assembly (hazard warning signal switch).
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following
inspection procedur ...