DTC U2121:00 [PCM (SKYACTIV-X)]
id0102u9011400
Outline
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System malfunction location |
CAN communication: communication error to vehicle control module (VCM) |
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Detection condition
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• Communication error between the PCM and vehicle control module (VCM) continues for 5 s or more.
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Fail-safe
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• Inhibits engine-stop by operating the i-stop function.
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Possible cause
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• CAN communication line malfunction between PCM and vehicle control module (VCM)
• Vehicle control module (VCM) malfunction (built-into body control module (BCM))
• PCM malfunction
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System wiring diagram
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• Not applicable
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Connector diagram
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• Not applicable
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Diagnostic Procedure