P1A91 SATURN - 14 Volt Power Module Temperature Sensor 1 Circuit Low Voltage
- Faulty 14 Volt Power Module
- 14 Volt Power Module harness is open or shorted
- 14 Volt Power Module circuit poor electrical connection
- Engine Light ON (or Service Engine Soon Warning Light)
P1a91 Saturn DescriptionThe 14V Power Module also called the accessory DC power control module, constantly monitors system temperature to protect against overheat conditions. The module also monitors the function of the temperature sensors. These sensors are internal to the 14 V power module and are not serviced separately from the control module.
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