P2E80
Low Severity (Level 2)A/C Compressor Control Module InternalTemperature Sensor B Circuit Intermittent/Erratic
P2E80 usually means a/C Compressor Control Module InternalTemperature Sensor B Circuit Intermittent/Erratic.
Can you still drive with P2E80?
⚠️Short-distance driving is usually OK, but have this diagnosed within a week to prevent further damage.
Typical repair cost: $70 – $1000
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
- Climate control working fine one moment, failing the next — classic intermittent fault
- No pattern to failure — seems random
- A/C or heat output inconsistent — temperature won't adjust
- Poor electrical connection causing intermittent signal dropouts
Possible Causes
- Loose or corroded electrical connector in the climate control / HVAC system — vibration causes intermittent contact
- Internal failure in blower motor — works when cold, fails when hot (thermal expansion breaks internal connection)
- Wiring harness partially broken inside the insulation — flex point in the harness causing intermittent open circuit
- Moisture in the climate control / HVAC system electrical connector causing intermittent shorts — common after car wash or heavy rain
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 ($8-118 at shop, free at auto parts store for basic scan)
- Visually inspect the climate control / HVAC system wiring harness and connectors — look for chafed wires, melted insulation, green corrosion, loose pins, or rodent damage (often free to check yourself, $103 diagnostic fee at shop)
- Replace blower motor if testing confirms it has failed — use OEM quality, avoid the cheapest no-name aftermarket parts that fail in a year ($50-800)
- Check and replace any blown fuses in the climate control / HVAC system fuse circuit — if fuse blows again, there's still a short that needs to be found ($2-19 for fuses)
- Perform a wiggle test on the climate control / HVAC system wiring harness while monitoring live data — see if the fault returns when you move the harness at different points ($0-128 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 P2E80 mean?
P2E80 stands for "A/C Compressor Control Module InternalTemperature Sensor B Circuit Intermittent/Erratic". P2E80 usually means a/C Compressor Control Module InternalTemperature Sensor B Circuit Intermittent/Erratic.
Can you drive with P2E80?
Short-distance driving is usually OK, but have this diagnosed within a week to prevent further damage.
How much does it cost to fix P2E80?
Repair costs for P2E80 typically range from $70 to $1000, 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 ($8-118 at shop, free at auto parts store for basic scan); Visually inspect the climate control / HVAC system wiring harness and connectors — look for chafed wires, melted insulation, green corrosion, loose pins, or rodent damage (often free to check yourself, $103 diagnostic fee at shop); Replace blower motor if testing confirms it has failed — use OEM quality, avoid the cheapest no-name aftermarket parts that fail in a year ($50-800).
Will P2E80 clear itself?
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