DTC U2023 [ABS]
id0402a7878000
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DTC
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U2023
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Abnormal message from PCM
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DETECTION CONDITION
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• Correct data cannot be received from PCM
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POSSIBLE CAUSE
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• PCM malfunction
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Diagnostic procedure
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STEP |
INSPECTION |
ACTION |
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1
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INSPECT FOR PCM MALFUNCTION
• Turn the ignition switch to the LOCK position.
• Using the M-MDS, perform the DTC inspection for the PCM.
• Are any DTCs detected?
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Yes
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Go to applicable DTC inspection.
(See DTC TABLE [L8, LF].)
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No
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Go to the next step.
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2
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VERIFY THAT THE SAME DTC IS NOT PRESENT
• Clear the DTCs from the memory.
(See ON-BOARD DIAGNOSIS [ABS].)
• Are the same DTCs present?
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Yes
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Repeat the inspection from Step 1.
If the malfunction recurs, replace the PCM, then go to the next step.
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No
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Go to the next step.
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3
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VERIFY THAT NO OTHER DTCS ARE PRESENT
• Are any other DTCs output?
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Yes
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Go to the applicable DTC inspection.
(See ON-BOARD DIAGNOSIS [ABS].)
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No
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DTC troubleshooting completed.
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