DTC C1805 [ABS]
DTC C1805 POSSIBLE CAUSE TABLE
DIAGNOSTIC PROCEDURE
DTC C1805 DIAGNOSTIC PROCEDURE TABLE
output?
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.
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
CLEARING
DTCS
PROCEDURES
.)
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.
2007 Mazda MX-5 Miata Sport
2007 BRAKES On-Board Diagnostic (ABS) - MX-5 Miata
Microsoft
Thursday, July 09, 2009 3:17:55 PM
Page 36
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