Code No.C1345: Low brake fluid level







OPERATION




DIAGNOSIS CODE SET CONDITIONS




PROBABLE CAUSES




DIAGNOSIS PROCEDURE


STEP 1. Check the brake fluid level.


Q. Is the check result normal?

Go to Step 2.
Check the brake fluid leaks and the brake pad thickness, and refill the brake fluid up to the specified level.

STEP 2. Check the brake fluid level sensor connector A-04 and ABS-ECU connector A-05.





Q. Is the check result normal?

Go to Step 3.

Repair it.

STEP 3. Check the brake fluid level sensor circuit at brake fluid level sensor connector A-04


note After inspection brake fluid level sensor connector A-04 and ABS-ECU connector A-05 inspect the wire. If any of these connectors is damaged, repair or replace it. Then go to Step 4.


(1)Disconnect brake fluid level sensor connector A-04.

(2)Disconnect ABS-ECU connector A-05, and connect special tool ABS Check Harness (MB991951) to the wiring harness-side connector.
note Do not connect special tool ABS Check Harness (MB991951) to the ABS-ECU.
(3)Measure the resistance between ABS-ECU connector A-05 terminal 3 and body earth.
OK: 1 kΩ or more

Q. Is the check result normal?

Go to Step 4.

Repair the wiring harness between ABS-ECU connector A-05 and brake fluid level sensor connector A-04.

STEP 4. Remove the brake fluid level sensor and check it.


Remove the brake fluid level sensor and check it (Refer to GROUP 35A, On-vehicle Service - Brake Fluid Level Sensor Check ).

Q. Is the check result satisfactory?

Go to Step 5.
Replace the brake fluid level sensor (Refer to GROUP 35A, Master Cylinder Assembly and Brake Booster ).

STEP 5. Check whether the diagnosis code is reset.



caution Before connecting or disconnecting the M.U.T.-III, turn the ignition switch to the "LOCK" (OFF) position.
(1)Turn the ignition switch to the "ON" position.
(2)Erase the diagnosis code.
(3)Turn the ignition switch to the "LOCK" (OFF) position.
(4)Turn the ignition switch to the "ON" position.
(5)Check if the diagnosis code is set.
(6)Turn the ignition switch to the "LOCK" (OFF) position.
(7)Disconnect M.U.T.-III.

Q. Is code No.C1345 set?

Replace the hydraulic unit (integrated with ABS-ECU) (Refer to ).

The malfunction is intermittent. Refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction .






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