P0687 Suzuki Code - Engine Control Module Power Relay Control Circuit High
Quick Answer
The Engine Control Module (ECM) monitors the power inputs. Common causes include Faulty Engine Control Module (ECM) power relay, ECM power relay harness is open or shorted, ECM power relay 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
- P0687 Suzuki indicates Engine Control Module Power Relay Control Circuit High.
- Common causes
- Common causes include Faulty Engine Control Module (ECM) power relay, ECM power relay harness is open or shorted, ECM power relay 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.
Code P0687 Suzuki Description
What are the Possible Causes of the DTC P0687 Suzuki?
- Faulty Engine Control Module (ECM) power relay
- ECM power relay harness is open or shorted
- ECM power relay circuit poor electrical connection
- Faulty ECM
How to Fix the DTC P0687 Suzuki?
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 P0687 Suzuki 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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Frequently Asked Questions about P0687 Suzuki Code
1. What does the OBDII code P0687 mean for a Suzuki?
P0687 indicates that the Engine Control Module (ECM) power relay control circuit is experiencing a high voltage condition, which may prevent the ECM from functioning properly.
2. What are the common symptoms of code P0687 in a Suzuki?
Symptoms may include the engine failing to start, intermittent stalling, poor performance, or the check engine light being illuminated.
3. What causes the P0687 code in a Suzuki?
Possible causes include a faulty ECM power relay, damaged wiring or connectors in the ECM power relay circuit, or a malfunctioning ECM.
4. Can a bad battery trigger the P0687 code on a Suzuki?
Yes, a weak or failing battery can cause voltage irregularities in the ECM power relay circuit, potentially triggering the P0687 code.
5. How do I diagnose the P0687 code on my Suzuki?
Start by checking the ECM power relay for proper function, inspect the wiring and connectors for damage or corrosion, and test the battery voltage and charging system.
6. Is the P0687 code serious for my Suzuki?
Yes, it can be serious as it may prevent the engine from starting or cause unexpected stalling, which could create safety concerns.
7. How do I fix the P0687 code on a Suzuki?
Repairs may include replacing the ECM power relay, repairing or replacing damaged wiring, cleaning corroded connectors, or in rare cases, replacing the ECM.
8. Can I drive my Suzuki with a P0687 code?
It's not recommended to drive with this code, as it can lead to engine stalling or failure to start, which can leave you stranded.
9. How much does it cost to fix the P0687 code on a Suzuki?
Repair costs vary depending on the issue; replacing an ECM power relay may cost $50-$150, while ECM replacement can cost $500-$1,500 or more.
10. Will clearing the P0687 code fix the problem on my Suzuki?
Clearing the code may temporarily turn off the check engine light, but the underlying issue must be fixed to prevent the code from returning.
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