C1452

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: C1452: Accumulator Low Pressure
C1452 - Accumulator Low Pressure

DESCRIPTION





INSPECTION PROCEDURE

NOTICE:
When replacing the master cylinder solenoid, perform calibration Programming and Relearning.

PROCEDURE

1. CUSTOMER PROBLEM ANALYSIS

(a) Check with the customer to determine if frequent braking has been performed.

NEXT -- Continue to next step.

2. RECONFIRM DTC

(a) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.

(b) Turn the engine switch off.

(c) Depress the brake pedal more than 40 times.

(d) Turn the engine switch on (IG).

(e) Wait for 99 seconds.

(f) Check if the same DTC is output Reading and Clearing Diagnostic Trouble Codes.

Result





HINT
Excessive brake pedal operation results in abnormal accumulator pressure consumption. This is normal.

C -- END

B -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting
A -- Continue to next step.

3. CHECK HYDRAULIC CIRCUIT C1256

NG -- REPAIR HYDRAULIC CIRCUIT
OK -- Continue to next step.

4. READ VALUE USING TECHSTREAM (ACCUMULATOR SENSOR) C1256

NG -- REPLACE MASTER CYLINDER SOLENOID Disassembly
OK -- Continue to next step.

5. RECONFIRM DTC C1256

B -- REPLACE MASTER CYLINDER SOLENOID Disassembly

A -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting