Toyota Tacoma (2015-2018) Service Manual: Accumulator Low Pressure (C1452)
DESCRIPTION
|
DTC Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
C1452 |
After braking, the fluid pressure inside the accumulator is below the threshold within 3.2 seconds. |
|
CAUTION / NOTICE / HINT
NOTICE:
When replacing the skid control ECU (master cylinder solenoid), perform calibration
(See page .gif)
).
PROCEDURE
|
1. |
CUSTOMER PROBLEM ANALYSIS |
(a) Check with the customer to determine if frequent braking has been performed.
|
.gif)
|
2. |
RECONFIRM DTC |
(a) Clear the DTC (See page
).
(b) Turn the ignition switch off.
(c) Depress the brake pedal more than 40 times.
(d) Turn the ignition switch to ON.
(e) Wait for 99 seconds.
(f) Check if the same DTC is output (See page
).
|
Result |
Proceed to |
|---|---|
|
DTC is output |
A |
|
Frequent braking was not performed and DTC is not output |
B |
|
Frequent braking was performed and DTC is not output |
C |
HINT:
Excessive brake pedal operation results in abnormal accumulator pressure consumption. This is normal.
| B | .gif) |
USE SIMULATION METHOD TO CHECK |
| C | |
END |
|
|
3. |
CHECK HYDRAULIC CIRCUIT |
(a) Check the hydraulic circuit (See page ).
OK:
Hydraulic circuit is normal (no leakage).
| NG | |
REPAIR HYDRAULIC CIRCUIT |
|
|
4. |
READ VALUE USING TECHSTREAM (ACCUMULATOR SENSOR) |
| NG | |
REPLACE MASTER CYLINDER SOLENOID |
|
|
5. |
RECONFIRM DTC |
(a) Clear the DTCs (See page
).
(b) Turn the ignition switch off.
(c) Check if the same DTC is output (See page
).
|
Result |
Proceed to |
|---|---|
|
DTC is output |
A |
|
DTC is not output |
B |
| A | |
REPLACE MASTER CYLINDER SOLENOID |
| B | |
USE SIMULATION METHOD TO CHECK |
Invalid Data Received from Deceleration Sensor (C1442,C1443)
DESCRIPTION
The skid control ECU (master cylinder solenoid) receives signals from the yaw
rate and acceleration sensor (airbag sensor assembly) via the CAN communication
system.
The airbag senso ...
Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC) (C1281,...,C1458)
DESCRIPTION
DTC Code
DTC Detection Condition
Trouble Area
C1281
Stored only during test mode.
Master cylinder pres ...
Other materials:
Speed Signal Malfunction (B15C2)
DESCRIPTION
The navigation receiver assembly receives a vehicle speed signal from the combination
meter assembly and information from the navigation antenna assembly, and then adjusts
the vehicle position.
The navigation receiver assembly stores this DTC when the difference between
the speed ...
If the engine will not start
If the engine still does not start after following the correct starting procedure
(→P. 141) or releasing the steering lock (→P. 142), confirm the following points.
■ The engine will not start even when the starter motor operates normally.
One of the following may be the cause o ...
Lost Communication with Blind Spot Monitor Slave Module (U0232)
DESCRIPTION
This DTC is stored when the blind spot monitor sensor LH judges that there is
a communication problem with the blind spot monitor sensor RH.
DTC Code
DTC Detection Condition
Trouble Area
U0232
The blind spot monitor sensor ...
