AutoCodes – Cadillac – P1658 Cadillac

P1658 Cadillac Code - Fuel Injector Control Module Driver Performance

Quick Answer

This diagnostic applies to internal microprocessor integrity conditions within the Fuel Injection Control Module (FICM). Common causes include Check fuel injectors connectors, Faulty Fuel Injection Control Module (FICM), Fuel Injection Control Module harness is open or shorted. 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: P1658 Cadillac indicates Fuel Injector Control Module Driver Performance.
Common causes: Common causes include Check fuel injectors connectors, Faulty Fuel Injection Control Module (FICM), Fuel Injection Control Module harness is open or shorted.
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 3,300

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 24, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1658 Cadillac Description

This diagnostic applies to internal microprocessor integrity conditions within the Fuel Injection Control Module (FICM). The Diagnostic Trouble Code (DTC) will be set when there is an internal failure in the FICM for less than 1 second.

OBDII Code P1658 Cadillac - Fuel Injector Control Module Driver Performance - AutoCodes.com — P1658 Cadillac Code - Fuel Injector Control Module Driver Performance

What does this mean?

What are the Possible Causes of the DTC P1658 Cadillac?

Check fuel injectors connectors
Faulty Fuel Injection Control Module (FICM)
Fuel Injection Control Module harness is open or shorted
Fuel Injection Control Module circuit poor electrical connection

How to Fix the DTC P1658 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 P1658 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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Need more information on how to fix the P1658 Cadillac code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1658 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 P1658 Cadillac Code

1. What are the common symptoms of OBDII code P1658 in a Cadillac related to the Fuel Injector Control Module Driver Performance?

- Common symptoms include engine misfires, rough idling, poor acceleration, and potential stalling issues.

2. What are the possible causes of OBDII code P1658 in a Cadillac?

- The code P1658 can be triggered by a faulty fuel injector control module, wiring issues, or a defective fuel injector.

3. How can I diagnose the cause of OBDII code P1658 in my Cadillac?

- To diagnose the issue, you can conduct a thorough inspection of the fuel injector control module, check the related wiring harness for any damage, and test the fuel injectors for proper function.

4. Can a DIY enthusiast repair OBDII code P1658 in a Cadillac?

- While some basic troubleshooting can be done by DIY enthusiasts, repairing OBDII code P1658 often requires specialized tools and expertise. It is recommended to consult a professional mechanic for accurate diagnosis and repair.

5. Is it safe to continue driving with OBDII code P1658 in a Cadillac?

- It is not recommended to continue driving with OBDII code P1658 as it can lead to further engine damage and potential safety hazards. It is advisable to address the issue promptly.

6. How much does it typically cost to repair OBDII code P1658 in a Cadillac?

- The cost of repairing OBDII code P1658 can vary depending on the exact cause of the issue, but it typically ranges from $200 to $600 for parts and labor.

7. Can resetting the OBDII system clear the P1658 code in a Cadillac?

- Resetting the OBDII system may temporarily clear the P1658 code, but if the underlying issue is not addressed, the code is likely to reappear. It is important to diagnose and fix the root cause of the problem.

8. Are there any preventive maintenance tips to avoid OBDII code P1658 in a Cadillac?

- Regular maintenance, such as fuel system cleaning, using quality fuel, and timely replacement of fuel system components, can help prevent issues that may lead to OBDII code P1658.

9. Can a bad fuel injector cause OBDII code P1658 in a Cadillac?

- Yes, a defective fuel injector can contribute to triggering OBDII code P1658, as it can impact the performance of the fuel injector control module.

10. How long does it usually take to repair OBDII code P1658 in a Cadillac?

- The repair time for OBDII code P1658 can vary depending on the exact cause of the issue and the availability of parts, but it typically takes a few hours to a full day for a professional mechanic to diagnose and fix the problem.