P2D08
Low Severity (Level 2)Motor Electronics Coolant Pump B Supply Voltage Circuit
P2D08 usually means motor Electronics Coolant Pump B Supply Voltage Circuit.
Can you still drive with P2D08?
⚠️Short-distance driving is usually OK, but have this diagnosed within a week to prevent further damage.
Typical repair cost: $80 – $400
Severity Level 2 — Low
This code indicates a minor issue that is unlikely to cause immediate driveability problems. You can typically continue driving but should have the vehicle inspected at your earliest convenience.
Common Symptoms
- The system voltage supply is not operating as designed
- Warning light or malfunction indicator related to the system voltage supply is illuminated
- Diagnostic trouble code (DTC) stored in module memory
- Fault may be intermittent — code may clear itself and reappear
- Reduced vehicle functionality related to the system voltage supply
Possible Causes
- Faulty voltage regulator — most common cause, test before replacing
- Damaged or corroded wiring/connector in the system voltage supply circuit
- Blown fuse or faulty relay for the system voltage supply
- Poor ground connection — check and clean all related ground points
- Control module fault — rare but possible, only consider after ruling out simpler causes
Common Fixes
- Scan vehicle with a professional-grade OBD2 scanner to read all stored codes and freeze frame data — note the conditions when the code set ($14-83 at shop, free at auto parts store for basic scan)
- Visually inspect the system voltage supply wiring harness and connectors — look for chafed wires, melted insulation, green corrosion, loose pins, or rodent damage (often free to check yourself, $141 diagnostic fee at shop)
- Replace voltage regulator if testing confirms it has failed — use OEM quality, avoid the cheapest no-name aftermarket parts that fail in a year ($80-400)
- Check and replace any blown fuses in the system voltage supply fuse circuit — if fuse blows again, there's still a short that needs to be found ($1-11 for fuses)
- Perform a wiggle test on the system voltage supply wiring harness while monitoring live data — see if the fault returns when you move the harness at different points ($0-137 diagnostic labor)
Estimated Repair Cost
These are estimated costs based on generic repair data. Actual costs may vary depending on your vehicle, location, and labor rates.
Frequently Asked Questions
What does P2D08 mean?
P2D08 stands for "Motor Electronics Coolant Pump B Supply Voltage Circuit". P2D08 usually means motor Electronics Coolant Pump B Supply Voltage Circuit.
Can you drive with P2D08?
Short-distance driving is usually OK, but have this diagnosed within a week to prevent further damage.
How much does it cost to fix P2D08?
Repair costs for P2D08 typically range from $80 to $400, depending on your vehicle make, model, and local labor rates. Common fixes include: Scan vehicle with a professional-grade OBD2 scanner to read all stored codes and freeze frame data — note the conditions when the code set ($14-83 at shop, free at auto parts store for basic scan); Visually inspect the system voltage supply wiring harness and connectors — look for chafed wires, melted insulation, green corrosion, loose pins, or rodent damage (often free to check yourself, $141 diagnostic fee at shop); Replace voltage regulator if testing confirms it has failed — use OEM quality, avoid the cheapest no-name aftermarket parts that fail in a year ($80-400).
Will P2D08 clear itself?
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