DTC C1365: Accumulator Pressure Sensor [02/2019 - 12/2021]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Select the Data List on the Techstream.

   Refer to DATA LIST / ACTIVE TEST [02/2019 - 12/2021]

   Chassis > ABS/VSC/TRAC > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Accumulator Sensor	Accumulator pressure sensor	Min.: 0.00 V, Max.: 5.00 V	Specified value: 2.90 to 4.20 V	When brake fluid is stored in the accumulator: Accumulator pressure changes in accordance with volume of fluid stored in the accumulator

   Chassis > ABS/VSC/TRAC > Data List 

   Tester Display
   Accumulator Sensor

4. Depress the brake pedal 4 or 5 times to operate the pump motor.
5. Wait for 30 seconds without depressing the brake pedal.
6. Check that the accumulator pressure sensor output value change is within the specified range.

   OK

   Accumulator pressure sensor output value change is less than 0.55 V.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY. Refer to  REMOVAL [02/2019 - 10/2019]  , or refer to  REMOVAL [10/2019 - 08/2020]  , or refer to  REMOVAL [08/2020 - 12/2021] 

Result: 

OK 

See step  2

1. Turn the ignition switch off.
2. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [02/2019 - 12/2021]

   Chassis > ABS/VSC/TRAC > Clear DTCs 

3. Turn the ignition switch off.
4. Perform a road test.
5. Check if the same DTC is output.

   Refer to DTC CHECK / CLEAR [02/2019 - 12/2021]

   Chassis > ABS/VSC/TRAC > Trouble Codes 

   Result

   Result	Proceed to
   DTC C1365 is not output.	A
   DTC C1365 is output.	B

Result: 

A 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ] 

Result: 

B 

REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY. Refer to  REMOVAL [02/2019 - 10/2019]  , or refer to  REMOVAL [10/2019 - 08/2020]  , or refer to  REMOVAL [08/2020 - 12/2021]