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:
Removal
REMOVAL
PROCEDURE
1. DRAIN TRANSFER OIL
2. REMOVE FRONT PROPELLER SHAFT ASSEMBLY
3. REMOVE PROPELLER WITH CENTER BEARING SHAFT ASSEMBLY
4. SUPPORT TRANSMISSION ASSEMBLY
5. REMOVE NO. 3 FRAME CROSSMEMBER SUB-ASSEMBLY
6. REMOVE REAR NO. 1 ENGINE MOUNTING INSULATOR
7. SUPPO ...
Customize Parameters
CUSTOMIZE PARAMETERS
1. CUSTOMIZE FUNCTION WITH TECHSTREAM
NOTICE:
Be sure to record the current settings before customizing.
These buzzers should be ON for safe driving. Perform these procedure
only if it is necessary to turn the buzzer OFF (disabled).
HINT:
The following ...
Open in Turn Signal Circuit (B1507,B1508)
DESCRIPTION
This DTC is stored when the combination meter assembly detects an open in a turn
signal light circuit, a short in a turn signal light circuit, or a short in the
hazard warning light circuit.
DTC No.
DTC Detection Condition
Trouble Area
...
