Toyota Tacoma (2015-2018) Service Manual: Brake System (P157800)
DESCRIPTION
This DTC is stored when a malfunction is detected in the vehicle stability control system.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
|---|---|---|---|---|
|
P157800 |
Brake System |
While the ignition switch is ON 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. |
|
Does not come on |
CAUTION / NOTICE / HINT
NOTICE:
- 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
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Click here
- Before replacing the ECM, refer to Registration.
w/o Smart Key System: Click here
w/ Smart Key System: Click here
PROCEDURE
|
1. |
CHECK FOR DTCs (VEHICLE STABILITY CONTROL SYSTEM) |
(a) Check for DTCs.
- for Hydraulic Brake Booster: Click here
- for Vacuum Brake Booster: Click here
|
Result |
Proceed to |
|---|---|
|
DTCs are not output |
A |
|
DTCs are output (for Hydraulic Brake Booster) |
B |
|
DTCs are output (for Vacuum Brake Booster) |
C |
| B | .gif) |
GO TO VEHICLE STABILITY CONTROL SYSTEM |
| C | |
GO TO VEHICLE STABILITY CONTROL SYSTEM |
|
.gif)
|
2. |
CHECK FOR DTCs (CRUISE CONTROL SYSTEM) |
(a) Clear the DTCs.
Click here
(b) Perform the following procedure.
HINT:
If the following procedure is not performed, the previously output DTC cannot be detected.
- Turn the ignition switch to ON.
- Turn the dynamic radar cruise control system on using the cruise control main switch.
- Wait for 1 second or more.
(c) Check for DTCs.
Click here
|
Result |
Proceed to |
|---|---|
|
DTC P157800 is not output |
A |
|
DTC P157800 is output |
B |
| A | |
USE SIMULATION METHOD TO CHECK |
| B | |
REPLACE ECM |
Lost Communication With ECM/PCM "A" Missing Message (U010087,U010487,U012287)
DESCRIPTION
The ECM communicates with each sensor and ECU via CAN communication.
If any malfunction is detected in a CAN communication circuit, one or more CAN
communication system DTCs are stored ...
Cruise Control Input Processor (P160700)
DESCRIPTION
The ECM continuously monitors its main and sub CPUs. This self-check ensures
that the ECM is functioning properly. If outputs from the CPUs are different and
deviate from the standard ...
Other materials:
Short in Curtain Shield Squib RH Circuit (B1830/57-B1833/57)
DESCRIPTION
The front passenger side curtain shield squib circuit consists of the airbag
sensor assembly and the curtain shield airbag assembly RH.
The circuit signals the SRS to deploy when airbag deployment conditions are met.
These DTCs are set when a malfunction is detected in the front pas ...
Definition Of Terms
DEFINITION OF TERMS
Term
Definition
Monitor description
Description of what the ECM monitors and how it detects malfunctions
(monitoring purpose and details).
Related DTCs
Group of diagnostic trouble codes that are ou ...
Inspection
INSPECTION
PROCEDURE
1. INSPECT FUEL INJECTOR ASSEMBLY
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
Specified Condition
1 - 2
20°C (68°F)
11.6 ...
