AutoCodes – Cadillac – P1AB6 Cadillac

P1AB6 Cadillac Code - Starter/Generator Phase V Current Sensor Circuit High Voltage

Quick Answer

The Starter/Generator Control Module (SGCM) phase U/V/W current sensors are used for motor control and power inverter module (PIM) current sensor rationality check. Common causes include Faulty Starter/Generator Control Module (SGCM), Starter/Generator Control Module (SGCM) harness is open or shorted, Starter/Generator Control Module (SGCM) 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: P1AB6 Cadillac indicates Starter/Generator Phase V Current Sensor Circuit High Voltage.
Common causes: Common causes include Faulty Starter/Generator Control Module (SGCM), Starter/Generator Control Module (SGCM) harness is open or shorted, Starter/Generator Control Module (SGCM) 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 842

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 26, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1AB6 Cadillac Description

The Starter/Generator Control Module (SGCM) phase U/V/W current sensors are used for motor control and power inverter module (PIM) current sensor rationality check. The SGCM monitors the current sensor for the following:
- To detect a failure of the U/V/W-phase current sensor circuit below valid range.
- To detect a failure of the U/V/W-phase current sensor circuit above valid range.

OBDII Code P1AB6 Cadillac - Starter/Generator Phase V Current Sensor Circuit High Voltage - AutoCodes.com — P1AB6 Cadillac Code - Starter/Generator Phase V Current Sensor Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1AB6 Cadillac?

Faulty Starter/Generator Control Module (SGCM)
Starter/Generator Control Module (SGCM) harness is open or shorted
Starter/Generator Control Module (SGCM) circuit poor electrical connection

How to Fix the DTC P1AB6 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 P1AB6 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.

Need more information about the P1AB6 Cadillac code?

Need more information on how to fix the P1AB6 Cadillac code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1AB6 Cadillac code diagnosed by a professional: Find a repair shop in your area

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 P1AB6 Cadillac Code

1. What are the common symptoms of OBDII code P1AB6 in a Cadillac related to Starter/Generator Phase V Current Sensor Circuit High Voltage?

- Common symptoms include the check engine light illuminating, reduced engine power, and potential issues starting the vehicle.

2. What are the possible causes of OBDII code P1AB6 in a Cadillac?

- The code may be triggered by a faulty starter/generator, damaged wiring or connectors in the current sensor circuit, or issues with the current sensor itself.

3. How can I diagnose the cause of OBDII code P1AB6 in my Cadillac?

- To diagnose the issue, you may need to perform a thorough inspection of the current sensor circuit, test the starter/generator, and check for any damaged wiring or connectors.

4. Can I continue driving my Cadillac with OBDII code P1AB6 present?

- It is not recommended to continue driving your Cadillac with this code present, as it may lead to further damage to the starter/generator or other components.

5. How can I repair OBDII code P1AB6 in my Cadillac?

- Repair options may include replacing the starter/generator, repairing or replacing damaged wiring and connectors, or recalibrating the current sensor circuit as needed.

6. Are there any DIY tips for troubleshooting OBDII code P1AB6 in a Cadillac?

- DIY troubleshooting tips include checking for loose connections, inspecting the wiring for damage, and ensuring the current sensor is properly calibrated.

7. Can a faulty battery cause OBDII code P1AB6 to appear in a Cadillac?

- While a faulty battery may not directly cause this code, it is essential to ensure the battery is in good condition as it can affect the overall performance of the electrical system.

8. Is it necessary to reset the OBDII code P1AB6 after making repairs to a Cadillac?

- Yes, it is recommended to reset the code using an OBDII scanner after making any repairs to ensure the issue has been resolved and to clear the check engine light.

9. What is the role of the Starter/Generator Phase V Current Sensor in a Cadillac?

- The Starter/Generator Phase V Current Sensor helps monitor the current flow in the electrical system, providing crucial data for the vehicle's performance and efficiency.

10. Can extreme weather conditions impact the occurrence of OBDII code P1AB6 in a Cadillac?

- Extreme weather conditions, such as extreme heat or cold, can potentially affect the electrical components in a vehicle, including the starter/generator and current sensor, leading to the triggering of this code.