P0CDC: Drive Motor A Position Sensor Circuit C Low
What to do
If channel A and channel B faults are stored alongside this one, this is the likely cause of all three rather than a third failure — it is what drives the sensor, so losing it silences the other two. Worth saying, because three codes look like a dead sensor and this may be one connector.
What this code means
The third position sensor circuit on drive motor A is reading below its valid range. Why a third circuit exists, and why it is the one to suspect when channels A and B complain together, are at P0CDA.
Likely causes
Start here
- Faulty motor position sensor · specialist
- Corroded or loose connector · easy
Less common
- Chafed harness between transaxle and inverter · specialist
- Failed sensor reference voltage supply · moderate
Symptoms
Components involved
Information, not instruction
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Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Community experience
Be the first to write this up
Nothing posted about this yet. Whatever you found is worth writing down — even a dead end saves someone the same afternoon.
What makes one worth reading:
- The car — make, model, year and engine. The same fault behaves differently on each.
- What you measured, not only what you replaced.
- What actually fixed it — or that nothing did, which is worth knowing too.
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