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Acura
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RDX Base
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Engine Performance
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Engine Control System - DTC Diagnostics (P0010 - P0299)
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DTC Troubleshooting
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DTC P0121
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Inspection
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PCM Inspection
PCM Inspection
Test Procedure
If the other inspection item (s) indicated a normal condition, then it is determined that the remaining PCM is the cause.
Results
There is a problem with the PCM.