Chevrolet P148C: Cooling Fan Signal Circuit High Voltage

Is your scanner showing Chevrolet P148C?
No worries. We'll show you what it means and how to deal with it.

Presented by
Randy Worner

Chevrolet P148C: Cooling Fan Signal Circuit High Voltage

OVERVIEW
Severity
:
Medium
DIY Difficulty Level
:
Intermediate
Repair Cost
:
$100-$300
Can I Still Drive?
:
Yes (Short-term only)

What Does The Chevrolet P148C Code Mean?

The 12 V battery voltage is greater than or equal to 9 V. The propulsion system is active. The cooling fans are enabled for more than 10 seconds. OR The 12 V battery voltage is greater than or equal to 9 V. The propulsion system is inactive. The energy storage system thermal condition request is ActiveCool. The cooling fans are enabled for more than 10 seconds.

The hybrid/EV powertrain control module 2 has detected a duty cycle of less than 3% from the engine control module.

Recommended Parts

Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:

>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Dorman 86689C 399 PC Automotive Electrical Repair Kit

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Reference Sources

Chevrolet Volt Hybrid DTC – OBDG01 HYBRID Diagnostics Document, page 439.

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