What Does P0C52 Mean?
The motor position sensor circuit voltage is below the minimum threshold. This indicates a short to ground or open circuit condition.
Safety Warning
Vehicle will likely not move or enter limp mode with severely limited power. Do not attempt to drive on highways.
Common Causes
40%
Short to ground in motor position sensor wiring
30%
Failed motor position sensor with internal short
15%
Damaged connector pins or terminals causing poor contact
10%
Control module internal fault (sensor voltage supply)
5%
Open circuit or broken wire in sensor harness
Diagnostic Steps
1
Step 1: Disconnect motor position sensor and measure voltage supply from control module (typically 5V or 12V reference)
2
Step 2: Check sensor signal and ground circuits for continuity and resistance to ground
3
Step 3: Inspect sensor connector for pushed-out pins, corrosion, or damage
4
Step 4: Test motor position sensor resistance values when disconnected per specifications
5
Step 5: Check for chafed wiring along motor housing or where harness passes through chassis
Estimated Repair Cost
$300 - $1,800
Parts + labor, varies by vehicle and location
The motor position sensor circuit voltage is below the minimum threshold. This indicates a short to ground or open circuit condition.
The most common cause of P0C52 (Drive Motor "A" Position Sensor Circuit "A" Low) is: Short to ground in motor position sensor wiring
Typical repair costs for P0C52 range from $300 to $1,800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle will likely not move or enter limp mode with severely limited power. Do not attempt to drive on highways.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0C52 to identify the root cause.
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Quick Info
Category
Powertrain
System
Hybrid/Electric Drive System
Difficulty
Type
Generic (SAE)
Recommended Tools
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