DTC B1048-7B: Brake Fluid Level Switch Low Fluid Level [07/2015 - ]: Procedure

1. Clear the DTC for the main body ECU using the Techstream.

   Refer to DTC CHECK / CLEAR [07/2015 - ]

   Body Electrical > Body Control Module > Clear DTCs 

2. Retrieve the main body ECU DTCs using the Techstream.

   Refer to DTC CHECK / CLEAR [07/2015 - ]

   Body Electrical > Body Control Module > Trouble Codes 

3. Is the same DTC displayed?

   Result

   Result
   Yes
   No

Result:  2

No 

See step  8

Result:  1

Yes 

See step  2

1. Inspect the brake fluid level.

   Refer to INSPECTION [07/2015 - ]

2. Is the brake fluid level normal?

   Result

   Result
   Yes
   No

Result:  2

No 

See step  14

Result:  1

Yes 

See step  3

1. Switch the ignition off.
2. Disconnect the negative battery cable.

   Refer to REMOVAL [07/2015 - ]

3. Disconnect the brake fluid level sensor connector.
4. Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
5. Is the connector normal?

   Result

   Result
   Yes
   No

Result:  2

No 

See step  13

Result:  1

Yes 

See step  4

1. Disconnect the main body ECU connector
2. Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
3. Is the connector normal?

   Result

   Result
   Yes
   No

Result:  2

No 

See step  12

Result:  1

Yes 

See step  5

1. Verify that the brake fluid level sensor and main body ECU connectors are disconnected.
2. Inspect for continuity between main body ECU terminal A1-21 (wiring harness-side) and body ground.
3. Is there continuity?

   Result

   Result
   Yes
   No

Result:  2

Yes 

See step  11

Result:  1

No 

See step  6

1. Inspect the brake fluid level sensor.

   Refer to INSPECTION [07/2015 - ]

2. Is the brake fluid level sensor normal?

   Result

   Result
   Yes
   No

Result:  2

No 

See step  10

Result:  1

Yes 

See step  7

1. Always reconnect all disconnected connectors.
2. Connect the negative battery cable.

   Refer to INSTALLATION [07/2015 - ]

3. Clear the DTC for the main body ECU using the Techstream.

   Refer to DTC CHECK / CLEAR [07/2015 - ]

   Body Electrical > Body Control Module > Clear DTCs 

4. Retrieve the main body ECU DTCs using the Techstream.

   Refer to DTC CHECK / CLEAR [07/2015 - ]

   Body Electrical > Body Control Module > Trouble Codes 

5. Is the same DTC displayed?

   Result

   Result
   Yes
   No

Result:  2

Yes 

See step  9

Result:  1

No 

See step  8

1. Are any other DTCs displayed?

   Result

   Result
   Yes
   No

Result:  1

Yes 

REPAIR OR REPLACE THE MALFUNCTIONING PART ACCORDING TO THE APPLICABLE DTC TROUBLESHOOTING. 

1. Refer to DIAGNOSTIC TROUBLE CODE CHART [07/2015 - ]

Result:  2

No 

DTC TROUBLESHOOTING COMPLETED. 

1. If the malfunction recurs, replace the main body ECU.

   Refer to REMOVAL [07/2015 - ]

   Result

   Proceed to
   NEXT

Result:  1

NEXT 

See step  8

1. Refer to REMOVAL [07/2015 - ]

   Result

   Proceed to
   NEXT

Result:  1

NEXT 

See step  7

1. If there is a common connector:
   1. Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.
   2. Repair or replace the malfunctioning part.
2. If there is no common connector:

   Repair or replace the wiring harness which has a short to ground.

   Go to Step 7.

   Result

   Proceed to
   NEXT

Result:  1

NEXT 

See step  7

Result

Result:  1

NEXT 

See step  7

Result

Result:  1

NEXT 

See step  7

Result

Result:  1

NEXT 

See step  7