AutoCodes – Suzuki – P0697 Suzuki

P0697 Suzuki Code - Sensor Reference Voltage 'C' Circuit Open

Quick Answer

The control module has internal 5-volt reference buses called "5-volt reference". Common causes include Faulty Engine Control Module (ECM), ECM harness is open or shorted, ECM 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: P0697 Suzuki indicates Sensor Reference Voltage 'C' Circuit Open.
Common causes: Common causes include Faulty Engine Control Module (ECM), ECM harness is open or shorted, ECM 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 15,855

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 May 06, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0697 Suzuki Description

The control module has internal 5-volt reference buses called "5-volt reference". Each reference bus provided 5-volt reference circuit for more than one sensor. Therefore, a fault condition on one 5-volt reference circuit will affect the other 5-volt reference circuits connected to the reference bus. The control module monitors the voltage on the 5-volt reference buses.

OBDII Code P0697 Suzuki - Sensor Reference Voltage 'C' Circuit Open - AutoCodes.com — P0697 Suzuki Code - Sensor Reference Voltage 'C' Circuit Open

What does this mean?

What are the Possible Causes of the DTC P0697 Suzuki?

Faulty Engine Control Module (ECM)
ECM harness is open or shorted
ECM circuit poor electrical connection
Shorted sensor on 5 volt circuit

How to Fix the DTC P0697 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 P0697 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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Need more information on how to fix the P0697 Suzuki code? Get Access to Factory Service Manuals

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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 P0697 Suzuki Code

1. What does the OBDII code P0697 mean on a Suzuki?

P0697 indicates that the Engine Control Module (ECM) has detected an open circuit in the Sensor Reference Voltage 'C' circuit, which supplies a stable voltage to certain engine sensors.

2. What are the common symptoms of code P0697 on a Suzuki?

Symptoms may include a check engine light, poor engine performance, difficulty starting the engine, or erratic sensor readings.

3. What causes the P0697 code to appear on a Suzuki?

Common causes include damaged or corroded wiring, a faulty sensor, a defective ECM, or a poor electrical connection in the Sensor Reference Voltage 'C' circuit.

4. Can I drive my Suzuki with a P0697 code?

Driving with this code is not recommended, as it can lead to unstable engine performance or potential damage to engine components.

5. How do I diagnose the P0697 code on my Suzuki?

Start by inspecting the wiring and connectors for damage or corrosion. Use a multimeter to check the voltage in the Sensor Reference Voltage 'C' circuit.

6. What sensors rely on the Sensor Reference Voltage 'C' circuit in a Suzuki?

This varies by model, but it often includes sensors like the throttle position sensor (TPS), manifold absolute pressure (MAP) sensor, or other critical engine sensors.

7. How do I fix the P0697 code on a Suzuki?

Repairs may involve fixing or replacing damaged wiring, cleaning corroded connectors, replacing a failed sensor, or, in rare cases, replacing the ECM.

8. How much does it cost to fix a P0697 code on a Suzuki?

Costs depend on the specific issue but may range from $50 for simple wiring repairs to several hundred dollars if sensor or ECM replacement is required.

9. Will clearing the P0697 code solve the issue?

Simply clearing the code will not fix the underlying problem. Proper diagnosis and repair are necessary to prevent the code from returning.

10. Can a faulty ECM cause a P0697 code on a Suzuki?

Yes, a defective ECM could fail to provide the correct reference voltage, leading to this code. This should be checked after ruling out wiring and sensor issues.