AutoCodes – Cadillac – P1A92 Cadillac

P1A92 Cadillac Code - 14 Volt Power Module Temperature Sensor 1 Circuit High Voltage

Quick Answer

The 14V 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, 14 Volt Power Module harness is open or shorted, 14 Volt Power Module 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: P1A92 Cadillac indicates 14 Volt Power Module Temperature Sensor 1 Circuit High Voltage.
Common causes: Common causes include Faulty 14 Volt Power Module, 14 Volt Power Module harness is open or shorted, 14 Volt Power Module 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.

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Code Popularity 1,058

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Feb 24, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1A92 Cadillac Description

The 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.

OBDII Code P1A92 Cadillac - 14 Volt Power Module Temperature Sensor 1 Circuit High Voltage - AutoCodes.com — P1A92 Cadillac Code - 14 Volt Power Module Temperature Sensor 1 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1A92 Cadillac?

Faulty 14 Volt Power Module
14 Volt Power Module harness is open or shorted
14 Volt Power Module circuit poor electrical connection

How to Fix the DTC P1A92 Cadillac?

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 P1A92 Cadillac 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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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1A92 Cadillac Code

1. What does the OBDII code P1A92 mean on a Cadillac?

P1A92 indicates an issue with the 14 Volt Power Module Temperature Sensor 1 Circuit, specifically detecting high voltage.

2. What are the symptoms of the P1A92 code on a Cadillac?

Common symptoms include an illuminated check engine light, reduced charging system performance, or potential electrical system malfunctions.

3. What causes the P1A92 code to appear?

The code can be caused by a faulty temperature sensor, damaged wiring or connectors, a malfunctioning 14-volt power module, or a software issue in the powertrain control module (PCM).

4. Can I drive my Cadillac with a P1A92 code?

While the vehicle may still be drivable, itâ€™s best to address the issue promptly to avoid potential electrical system failures or reduced battery performance.

5. How do you diagnose the P1A92 code?

A technician will inspect the sensor and wiring, check for loose or corroded connectors, perform voltage tests, and use a scan tool to monitor the sensorâ€™s output.

6. How is the P1A92 code fixed on a Cadillac?

Repairs may include replacing the temperature sensor, repairing damaged wiring, cleaning or securing connections, or updating the PCM software.

7. What tools are needed to repair the P1A92 code?

Diagnosis typically requires a scan tool, multimeter for electrical testing, and basic hand tools for sensor or wiring repairs.

8. Can a dirty connector cause the P1A92 code?

Yes, a corroded or dirty connector can disrupt the circuit and trigger the P1A92 code.

9. How much does it cost to repair the P1A92 code on a Cadillac?

Repair costs can range from $100 to $500, depending on whether the issue is with the sensor, wiring, or power module.

10. Is the P1A92 code related to the battery or alternator?

While not directly related, the 14-volt power module and its temperature sensor play a role in the vehicleâ€™s charging system, which can indirectly affect the battery or alternator performance.