DTC B2900, C1805[L3]


id040232802700

DTC
B2900, C1805
PCM communication
DETECTION CONDITION
•  The programmed vehicle data and the data received from the CAN do not correspond.
POSSIBLE CAUSE
•  The correct ABS HU/CM is not installed
•  PCM CAN data is abnormal (VIN data abnormal)
•  Incorrect input of configuration data

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
If an incorrect ABS HU/CM is installed, replace the ABS HU/CM, then go to the next step.
2
VERIFY THE ABS HU/CM CONFIGURATION
•  Has the ABS HU/CM configuration been performed?
Yes
Go to the next step.
No
Perform configuration using the M-MDS.
Go to Step 5.
3
VERIFY THAT THE PCM HAS NOT BEEN REPLACED
•  Has the PCM been replaced?
Yes
Go to the next step.
No
Go to Step 5.
4
VERIFY PCM CONFIGURATION
Has the PCM been configured?
Yes
Go to the next step.
No
Perform configuration using the M-MDS.
Go to the next step.
5
VERIFY THAT THE SAME DTC IS NOT PRESENT
•  Clear the DTC from the memory.
•  Is the same DTC present?
Yes
Repeat the inspection from Step 1.
If the malfunction recurs, replace the ABS HU/CM.
No
Go to the next step.
6
VERIFY THAT NO OTHER DTCs ARE PRESENT
•  Are any other DTCs output?
Yes
Go to the applicable DTC inspection.
No
DTC inspection completed.