AutoCodes – Saturn – B0688 Saturn

B0688 Saturn Code - Security System Indicator Circuit High

Quick Answer

The security indicator is controlled by the Body Control Module (BCM) based on commands from the immobilizer system or the Content Theft Deterrent (CTD) system. Common causes include Faulty Instrument Panel Cluster (IPC), Instrument Panel Cluster (IPC) harness is open or shorted, Instrument Panel Cluster (IPC) circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
B0688 Saturn indicates Security System Indicator Circuit High.
Common causes
Common causes include Faulty Instrument Panel Cluster (IPC), Instrument Panel Cluster (IPC) harness is open or shorted, Instrument Panel Cluster (IPC) circuit poor electrical connection.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
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Code Popularity 781
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 18, 2024
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Code B0688 Saturn Description

The security indicator is controlled by the Body Control Module (BCM) based on commands from the immobilizer system or the Content Theft Deterrent (CTD) system. With the ignition OFF, the security indicator is commanded by the CTD system. With the ignition ON, the security indicator is commanded by the immobilizer system. The security indicator is located in the Instrument Panel Cluster (IPC) and is supplied B+ at all times. When the immobilizer or CTD system requests the indicator be commanded ON, the BCM grounds the security indicator control circuit, illuminating the indicator.
OBDII Code B0688 Saturn - Security System Indicator Circuit High - AutoCodes.com
B0688 Saturn Code - Security System Indicator Circuit High

What are the Possible Causes of the DTC B0688 Saturn?

  • Faulty Instrument Panel Cluster (IPC)
  • Instrument Panel Cluster (IPC) harness is open or shorted
  • Instrument Panel Cluster (IPC) circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC B0688 Saturn?

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 B0688 Saturn 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 B0688 Saturn code?

Need more information on how to fix the B0688 Saturn code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0688 Saturn 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 B0688 Saturn Code

1. What are the common symptoms of OBDII code B0688 in a Saturn related to the Security System Indicator Circuit High?

- Common symptoms may include the security system indicator light staying on continuously or flashing erratically.

2. What typically causes the Security System Indicator Circuit High code B0688 in a Saturn?

- The code B0688 is often triggered by a faulty security system indicator circuit or a problem with the security module.

3. How can I diagnose the issue causing OBDII code B0688 in my Saturn's security system?

- To diagnose the issue, you may need to perform a thorough inspection of the security system wiring, connectors, and the security module itself.

4. Is it safe to continue driving my Saturn with the Security System Indicator Circuit High code B0688?

- It is recommended to address the issue promptly to ensure the proper functioning of the security system. Driving with this code present may lead to potential security system malfunctions.

5. Can I reset the OBDII code B0688 in my Saturn's security system without fixing the underlying issue?

- While you can clear the code using an OBDII scanner, it is important to identify and repair the root cause to prevent the code from reappearing.

6. Are there any DIY repair tips for resolving the Security System Indicator Circuit High code B0688 in a Saturn?

- DIY repair tips may include checking for loose connections, inspecting the wiring for damage, and ensuring the security module is functioning correctly.

7. Will fixing the Security System Indicator Circuit High code B0688 in my Saturn require professional assistance?

- Depending on your knowledge and experience with automotive repairs, you may be able to address the issue yourself. However, seeking professional assistance is recommended if you are unsure.

8. How can I prevent the OBDII code B0688 from reoccurring in my Saturn after fixing it?

- To prevent the code from reoccurring, it is essential to ensure all connections are secure, wiring is in good condition, and the security system components are functioning properly.

9. Does the Security System Indicator Circuit High code B0688 in a Saturn affect the vehicle's overall performance?

- The code B0688 is related to the security system and is unlikely to impact the vehicle's performance. However, addressing the issue promptly is still recommended.

10. Can the Security System Indicator Circuit High code B0688 in a Saturn be a sign of a more serious problem?

- While the code itself may not indicate a severe issue, it is crucial to address it to maintain the proper functioning of the security system and ensure the vehicle's security.

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