Toyota Tacoma 2015-2018 Service Manual: Brake System (P1578)
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:
- Before replacing the ECM, refer to Registration.
w/o Smart Key System: Click here
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w/ Smart Key System: Click here
- First check the CAN communication system by following How to Proceed
with Troubleshooting. After checking that there are no malfunctions in the
CAN communication system, proceed with troubleshooting
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 | .gif) |
GO TO VEHICLE STABILITY CONTROL SYSTEM |
|
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|
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.
- Drive the vehicle at a speed for which dynamic radar cruise control operation is possible.
- Turn the cruise control system on using the cruise control main switch (ON-OFF button).
- Drive the vehicle at 36 km/h (22 mph) or more for 0.2 seconds or more.
(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.
- Drive the vehicle at a speed for which dynamic radar cruise control operation is possible.
- Turn the cruise control system on using the cruise control main switch (ON-OFF button).
- Drive the vehicle at 36 km/h (22 mph) or more for 0.2 seconds or more.
(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) |
Cruise Control Input Circuit (P0575)
DESCRIPTION
This DTC is stored when there is a malfunction in the ECM.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
P0575
...
Communication Error from ECM to VSC (P1631)
DESCRIPTION
The ECM sends signals such as A/T information signals, dynamic radar cruise control
operation signals, brake operation demand signals, and buzzer operation demand signals
to the skid ...
Other materials:
System Diagram
SYSTEM DIAGRAM
Communication Table
Sender
Receiver
Signal
Communication Method
Power window regulator master switch assembly*1
Main Body ECU (Multiplex Network Body ECU)
Door control switch signal
...
List of storage features
Glove box
Overhead console (Access Cab and
Double Cab models)
Bottle holders
Auxiliary boxes
Front console box (separated type
front seat only)
Cup holders
CAUTION
■Items that should not be left in the storage spaces
Do not leave glasses, lighters or spray cans in the stora ...
Precaution
PRECAUTION
1. IGNITION SWITCH EXPRESSIONS
(a) The type of ignition switch used on this model differs according to the specifications
of the vehicle. The expressions listed in the table below are used in this section.
Expression
Ignition Switch (Position)
Engine ...
