AutoCodes – Generic – P0A08

P0A08 Code - DC/DC Converter Status Circuit

Quick Answer

The Powertrain Control Module (PCM) controls the DC/DC enable hardwired signal to switch the DC/DC converter on and off. Common causes include Faulty DC/DC Converter, DC/DC Converter harness is open or shorted, DC/DC Converter 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: P0A08 indicates DC/DC Converter Status Circuit.
Common causes: Common causes include Faulty DC/DC Converter, DC/DC Converter harness is open or shorted, DC/DC Converter 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 18,703

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 Aug 26, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P0A08 Description

The Powertrain Control Module (PCM) controls the DC/DC enable hardwired signal to switch the DC/DC converter on and off. The DC/DC converter provides feedback to the PCM using the hardwired DC/DC fault signal. The DC/DC fault signal indicates to the PCM when the converter is non-operational or when a fault has occurred.

OBDII Code P0A08 - DC/DC Converter Status Circuit - AutoCodes.com — P0A08 Code - DC/DC Converter Status Circuit

What does this mean?

What are the Possible Causes of the DTC P0A08?

Faulty DC/DC Converter
DC/DC Converter harness is open or shorted
DC/DC Converter circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0A08?

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 P0A08 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

P0A08 Chrysler — DC/DC Converter Status Circuit Open
P0A08 Dodge — DC/DC Converter Status Circuit Open
P0A08 Fiat — DC/DC Converter Status Circuit Open
P0A08 Ford — DC/DC Converter Status Circuit
P0A08 Jeep — DC/DC Converter Status Circuit Open
P0A08 Lexus — DC / DC Converter Status Circuit
P0A08 Mercury — DC/DC Converter Status Circuit
P0A08 RAM — DC/DC Converter Status Circuit Open
P0A08 Toyota — DC/DC Converter Status Circuit

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.