Toyota Tacoma 2015-2018 Service Manual: Brake System (P157800)
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 |
MIL |
Note |
|---|---|---|---|---|
|
P157800 |
|
|
Does not come on |
SAE: P1578 |
CAUTION / NOTICE / HINT
HINT:
When this DTC is output, confirm that the vehicle stability control system is normal since it may be malfunctioning.
for Hydraulic Brake Booster: See page .gif)
for Vacuum Brake Booster: See page
PROCEDURE
|
1. |
CHECK FOR DTC (ABS/VSC/TRAC) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch on.
(c) Turn the Techstream on.
(d) Enter the following menus: Chassis / ABS/VSC/TRAC / Trouble Codes.
(e) Check for DTCs (See page ).
OK:
Vehicle stability control system DTCs are not output
Result|
Result |
Proceed to |
|---|---|
|
OK |
A |
|
NG (for Hydraulic Brake Booster) |
B |
|
NG (for Vacuum Brake Booster) |
C |
| B | .gif) |
GO TO VEHICLE STABILITY CONTROL SYSTEM |
| C | |
GO TO VEHICLE STABILITY CONTROL SYSTEM |
|
.gif)
|
2. |
CHECK FOR DTC (DTC P157800) |
(a) Clear the DTCs (See page ).
(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.
(1) Drive the vehicle at a speed for which cruise control operation is possible.
(2) Turn the cruise control system on using the cruise control main switch (ON/OFF).
(3) Push the cruise control main switch to -SET to begin control of vehicle speed using the cruise control system.
(c) Turn the Techstream on.
(d) 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.
(1) Drive the vehicle at a speed for which cruise control operation is possible.
(2) Turn the cruise control system on using the cruise control main switch (ON/OFF).
(3) Push the cruise control main switch to -/SET to begin control of vehicle speed by the cruise control system.
(e) Check the DTCs (See page ).
OK:
DTC P157800 is not output
| OK | |
USE SIMULATION METHOD TO CHECK |
| NG | |
REPLACE ECM |
Brake Switch "A" Circuit Open (P057113)
DESCRIPTION
DTC No.
DTC Detection Condition
Trouble Area
MIL
Note
P057113
Vehicle Condition:
Cruise ...
Clutch Switch Circuit
DESCRIPTION
Clutch switch circuit inspection is necessary for manual transmission vehicles.
When the clutch pedal is released, the ECM receives the positive (+) battery
voltage through the ECU-IG ...
Other materials:
ECU Power Source Circuit
DESCRIPTION
The IG circuit is the power source for the tire pressure warning ECU and receiver.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
When replacing the tire pressure warning ECU and receiver, read the
transmitter IDs stored in the old ECU using the Techstream and write th ...
Dtc Check / Clear
DTC CHECK / CLEAR
1. CHECK DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the blind spot monitor main switch assembly (warning canceling switch
assembly) on.
(d) Turn the Techstream on.
(e) Enter the following menus: Body Electrical / Blind Spot Moni ...
Removal
REMOVAL
CAUTION / NOTICE / HINT
Text in Illustration
*a
Object Exceeding Weight Limit of Transmission Jack
Be sure to perform this procedure with several people as the rear differential
carrier assembly is very heavy.
Be sure to follow the procedure ...