DTC B2900, C1805 [L3]


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


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.
1		No	If an incorrect ABS HU/CM is installed, replace the ABS HU/CM, then go to the next step. (See ABS HU REMOVAL/INSTALLATION.)
2	VERIFY THE ABS HU/CM CONFIGURATION • Has the ABS HU/CM configuration been performed?	Yes	Go to the next step.
2		No	Perform configuration using the WDS or equivalent. Go to Step 5.
3	VERIFY THAT THE PCM HAS NOT BEEN REPLACED • Has the PCM been replaced?	Yes	Go to the next step.
3		No	Go to Step 5.
4	VERIFY PCM CONFIGURATION Has the PCM been configured?	Yes	Go to the next step.
4	VERIFY PCM CONFIGURATION Has the PCM been configured?	No	Perform configuration using the WDS or equivalent. Go to the next step.
5	VERIFY THAT THE SAME DTC IS NOT PRESENT • 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. (See ABS HU REMOVAL/INSTALLATION.)
5		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. (See DTC Table.)
6		No	DTC inspection completed.