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 master cylinder solenoid, perform calibration (See page ).
PROCEDURE
1. |
CUSTOMER PROBLEM ANALYSIS |
(a) Check with the customer to determine if frequent braking has been performed.
|
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 |
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 |
REPLACE MASTER CYLINDER SOLENOID |
B |
USE SIMULATION METHOD TO CHECK |
Removal
REMOVAL
PROCEDURE
1. REMOVE INSTRUMENT PANEL SUB-ASSEMBLY
(a) Remove the instrument panel sub-assembly (See page
).
2. REMOVE NO. 2 INSTRUMENT PANEL WIRE
(a) Detach the clamp.
(b) Disconnect the 2 co ...
System Diagram
SYSTEM DIAGRAM
Transmitting ECU
(Transmitter)
Receiving ECU
Signal
Communication Method
Center Airbag Sensor
ECM
Crash detection signal
Fuel cut signa ...