AutoCodes – Lincoln – P163A Lincoln

P163A Lincoln Code - Secondary Generator Control Circuit

Quick Answer

With the engine running, the charging system warning indicator is off. Common causes include Faulty Generator (Alternator), Generator harness is open or shorted, Generator 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: P163A Lincoln indicates Secondary Generator Control Circuit.
Common causes: Common causes include Faulty Generator (Alternator), Generator harness is open or shorted, Generator 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 847

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 17, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P163A Lincoln Description

With the engine running, the charging system warning indicator is off. The circuit from the battery B+ to the generator regulator is 13-15 volts. This voltage feedback is used by the regulator to maintain the battery voltage at the desired set-point. The S (stator) circuit (internal to the generator) is used to monitor generator operation. This circuit and other regulator internal conditions are checked by the regulator to allow the PCM to turn off the charging system warning indicator by sending a message over the Controller Area Network (CAN) bus to the Instrument Cluster (IC). The positive battery output (B+) circuit is the generator output supplied to the battery and electrical system. For dual generator systems, these circuits are duplicated. Both generator regulators send a signal to the Powertrain Control Module (PCM) to allow the PCM to turn off the charging system warning indicator. In dual generator systems, the PCM keeps the secondary generator in a standby state where it does not generate current unless the primary generator is generating full power and more current is needed to support the vehicle loads. This may make it appear that the secondary generator is not working when vehicle loads are not large. It is important to note that a normal operational state of the charging system is for the secondary generator to not produce current.

OBDII Code P163A Lincoln - Secondary Generator Control Circuit - AutoCodes.com — P163A Lincoln Code - Secondary Generator Control Circuit

What does this mean?

What are the Possible Causes of the DTC P163A Lincoln?

Faulty Generator (Alternator)
Generator harness is open or shorted
Generator circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P163A Lincoln?

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 P163A Lincoln 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 P163A Lincoln Code

1. What are the common symptoms of OBDII code P163A in a Lincoln related to the Secondary Generator Control Circuit?

- Common symptoms include the check engine light coming on, reduced charging system performance, and potential issues with the vehicle's electrical system.

2. What are the possible causes of OBDII code P163A in a Lincoln?

- The code P163A can be triggered by issues such as a faulty generator control module, damaged wiring or connectors in the control circuit, or a failing alternator.

3. How can I diagnose the cause of OBDII code P163A in my Lincoln?

- To diagnose the issue, it is recommended to perform a thorough inspection of the generator control module, check the wiring and connectors for any visible damage, and test the alternator's performance.

4. Can I still drive my Lincoln with OBDII code P163A present?

- It is not recommended to drive the vehicle with the code present, as it can lead to potential issues with the charging system and electrical components, affecting the vehicle's overall performance.

5. What are some repair tips for fixing OBDII code P163A in a Lincoln?

- Repair tips may include replacing the generator control module, repairing or replacing damaged wiring or connectors, and testing and potentially replacing the alternator if deemed necessary.

6. Will resetting the OBDII code P163A in my Lincoln make it go away permanently?

- Resetting the code may temporarily turn off the check engine light, but if the underlying issue causing the code is not addressed, it is likely to reappear.

7. How much does it typically cost to repair OBDII code P163A in a Lincoln?

- The cost of repairs can vary depending on the specific cause of the code and the parts and labor involved. It is recommended to consult with a professional technician for an accurate estimate.

8. Can OBDII code P163A in a Lincoln cause any long-term damage if left unaddressed?

- Leaving the code unaddressed can potentially lead to further damage to the charging system components, affecting the vehicle's overall reliability and performance.

9. Are there any preventive measures to avoid OBDII code P163A in a Lincoln?

- Regular maintenance of the charging system, including checking the alternator and generator control module, can help prevent issues that may trigger the code P163A.

10. Can a DIY enthusiast with automotive knowledge repair OBDII code P163A in a Lincoln?

- Depending on the individual's skill level and access to tools and resources, some DIY enthusiasts may be able to diagnose and repair the issue causing the code P163A. However, professional assistance may be recommended for more complex repairs.