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2008 - MX-5 - Brakes

DTC C1805 [ABS]



DTC

C1805

Incorrect ABS HU/CM installed

DETECTION CONDITION

  • The programmed vehicle information and the data received from the CAN do not correspond.

POSSIBLE CAUSE

  • The correct ABS HU/CM is not installed.


Diagnostic procedure

STEP

INSPECTION

ACTION

1

VERIFY THAT THE CORRECT ABS HU/CM IS INSTALLED
  • Verify the part number of the ABS HU/CM.

  • Is the part number correct?

Yes

Go to the next step.

No

After replacing the ABS, go to Step 3.

(See ABS HU/CM REMOVAL/INSTALLATION.)

2

PERFORM CONFIGURATION
  • Was configuration performed normally?

Yes

Go to the next step.

No

Replace the ABS HU/CM, then go to the next step.

(See ABS HU/CM REMOVAL/INSTALLATION.)

3

VERIFY DTC TROUBLESHOOTING COMPLETED
  • Make sure to reconnect all disconnected connectors.

  • Clear the DTC from the memory.

    (See ON-BOARD DIAGNOSIS[ABS].)

  • Is the same DTC present?

Yes

Repeat the inspection from Step 1.

If the malfunction recurs, replace the ABS HU/CM, then go to the next step.

(See ABS HU/CM REMOVAL/INSTALLATION.)

No

Go to the next step.

4

VERIFY AFTER REPAIR PROCEDURE
  • Are any other DTCs present?

Yes

Go to the applicable DTC inspection.

(See ON-BOARD DIAGNOSIS[ABS].)

No

DTC troubleshooting completed.




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