P1A73 Code - 14 Volt Power Module Temperature Sensor 2 Circuit High Voltage
Quick Answer
The 14 V power module, also called the accessory DC power control module, constantly monitors system temperature to protect against overheat conditions. Common causes include Faulty 14 Volt Power Module Temperature Sensor 2, 14 Volt Power Module Temperature Sensor 2 harness is open or shorted, 14 Volt Power Module Temperature Sensor 2 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1A73 indicates 14 Volt Power Module Temperature Sensor 2 Circuit High Voltage.
- Common causes
- Common causes include Faulty 14 Volt Power Module Temperature Sensor 2, 14 Volt Power Module Temperature Sensor 2 harness is open or shorted, 14 Volt Power Module Temperature Sensor 2 circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1A73 Description
What are the Possible Causes of the DTC P1A73?
- Faulty 14 Volt Power Module Temperature Sensor 2
- 14 Volt Power Module Temperature Sensor 2 harness is open or shorted
- 14 Volt Power Module Temperature Sensor 2 circuit poor electrical connection
How to Fix the DTC P1A73?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1A73 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Makes
- P1A73 Buick — 14 Volt Power Module Temperature Sensor 2 Circuit High Voltage
- P1A73 Cadillac — 14 Volt Power Module Temperature Sensor 2 Circuit High Voltage
- P1A73 Chevrolet — 14 Volt Power Module Temperature Sensor 2 Circuit High Voltage
- P1A73 GMC — 14 Volt Power Module Temperature Sensor 2 Circuit High Voltage
- P1A73 Saturn — 14 Volt Power Module Temperature Sensor 2 Circuit High Voltage
Frequently Asked Questions about P1A73 Code
1. What does the OBDII code P1A73 mean?
P1A73 indicates a high voltage issue in the circuit of the second temperature sensor for the 14-volt power module, often used in hybrid or electric vehicles.
2. What are the symptoms of code P1A73?
Symptoms can include an illuminated check engine light, reduced fuel efficiency, limited power output, or the vehicle entering limp mode.
3. What causes the P1A73 code to appear?
Common causes include a faulty temperature sensor, damaged wiring or connectors in the sensor circuit, or issues with the 14-volt power module itself.
4. How can I diagnose the P1A73 trouble code?
Diagnosis involves using a scan tool to verify the code, inspecting the sensor wiring and connectors for damage, and testing the temperature sensor for proper operation.
5. Can I drive with the P1A73 code active?
Driving with this code is not recommended as it may lead to reduced performance or further damage to the power module system.
6. How do you fix the P1A73 code?
Repairs may involve replacing the temperature sensor, repairing damaged wiring, or addressing issues with the 14-volt power module.
7. How much does it cost to fix the P1A73 code?
Repair costs can vary widely, typically ranging from $100 to $500 or more, depending on whether the sensor, wiring, or power module needs replacement.
8. Can a P1A73 code cause long-term damage to my vehicle?
If left unresolved, the P1A73 code could lead to overheating or failure of the 14-volt power module, which may result in higher repair costs.
9. What tools are needed to troubleshoot the P1A73 code?
You'll need an OBDII scanner, a multimeter to check electrical circuits, and possibly a service manual for your specific vehicle.
10. Will clearing the code fix the P1A73 issue?
Clearing the code will turn off the check engine light temporarily, but the issue will reoccur unless the underlying problem is addressed.
Discuss the causes and fixes for P1A73 OBDII Code
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