P0698 2018 Chevrolet Silverado Code - 5V Reference 3 Circuit Low Voltage
Quick Answer
The P0698 diagnostic trouble code (DTC) in a 2018 Chevrolet Silverado indicates that the 5V reference 3 circuit is experiencing low voltage. Common causes include Damaged wiring or connectors in the 5V reference circuit, Faulty 5V reference voltage regulator, Short circuit in the circuit. 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
- P0698 2018 Chevrolet Silverado indicates 5V Reference 3 Circuit Low Voltage.
- Common causes
- Common causes include Damaged wiring or connectors in the 5V reference circuit, Faulty 5V reference voltage regulator, Short circuit in the circuit.
- 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 P0698 2018 Chevrolet Silverado Description
The P0698 diagnostic trouble code (DTC) in a 2018 Chevrolet Silverado indicates that the 5V reference 3 circuit is experiencing low voltage. In modern vehicles, various sensors and components rely on a stable 5-volt reference voltage to function correctly. When this voltage drops below the specified range, it can lead to erratic behavior in these systems, affecting the vehicle's overall performance.
Common Causes of P0698 2018 Chevrolet Silverado
- Damaged wiring or connectors in the 5V reference circuit
- Faulty 5V reference voltage regulator
- Short circuit in the circuit
- Malfunctioning sensor drawing excessive current
Symptoms of P0698 2018 Chevrolet Silverado
- Engine misfires
- Rough idling
- Stalling
- Decreased fuel efficiency
- Check engine light illuminated
How to Fix P0698 2018 Chevrolet Silverado
- Begin by conducting a thorough inspection of the wiring and connectors in the 5V reference circuit to identify any damage or corrosion.
- Test the 5V reference voltage regulator to determine if it is functioning correctly. Replace if necessary.
- Check for any short circuits in the circuit using a multimeter and repair as needed.
- Test each sensor connected to the 5V reference line to identify any malfunctioning components. Replace as necessary.
- Clear the DTC and test drive the vehicle to ensure that the issue has been resolved.
Cost to Fix P0698 2018 Chevrolet Silverado
The cost of repairing a P0698 code in a 2018 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, the cost of parts for this repair can range from $50 to $200, while labor costs can range from $100 to $300. Overall, the total repair cost may fall between $150 and $500. It's important to note that the actual cost can vary based on factors such as location, labor rates, and the extent of the repair needed. It's recommended to consult with a qualified mechanic or auto repair shop for a more accurate estimate.
Tech Notes for P0698 2018 Chevrolet Silverado
The 5 Volt reference 3 circuit provides 5 Volt to the following sensors: (Some models may have different sensors, please consult the factory service manual for the list of sensors for your model and year)
- Accelerator pedal position sensor 2
- Manifold absolute pressure sensor
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Frequently Asked Questions about P0698 2018 Chevrolet Silverado Code
What does the OBDII code P0698 mean for a 2018 Chevrolet Silverado?
P0698 indicates a low voltage issue in the 5V Reference 3 circuit, which is responsible for supplying a stable 5-volt signal to certain engine sensors.
What are the common symptoms of P0698 in a 2018 Silverado?
Symptoms may include engine performance issues, poor acceleration, stalling, illuminated check engine light, and erratic sensor readings.
What causes the P0698 code to trigger?
Common causes include damaged wiring, corroded or loose connectors, a faulty sensor, or a malfunctioning powertrain control module (PCM).
Which sensors are typically impacted by the 5V Reference 3 circuit issue?
The affected sensors can vary, but they often include the throttle position sensor (TPS), manifold absolute pressure (MAP) sensor, or other engine control sensors.
Can a faulty PCM cause the P0698 code?
Yes, a malfunctioning PCM can fail to supply the correct reference voltage, leading to the P0698 code.
How do you diagnose the P0698 code on a 2018 Chevrolet Silverado?
Diagnosis involves checking the wiring and connectors in the 5V Reference 3 circuit, testing the affected sensors, and verifying the PCM's output voltage.
Can the P0698 code cause drivability issues?
Yes, since the affected sensors provide critical data for engine operation, the code can cause drivability problems like stalling or hesitation.
How can you fix the P0698 code?
Repairs may include replacing damaged wiring, cleaning or securing connectors, replacing a faulty sensor, or, in rare cases, reprogramming or replacing the PCM.
Is it safe to drive with the P0698 code active?
Driving with this code is not recommended, as the engine may operate unpredictably, potentially leading to safety concerns or further damage.
What tools are needed to troubleshoot the P0698 code?
A scan tool, multimeter, and wiring diagrams specific to the 2018 Chevrolet Silverado are essential for diagnosing and repairing the issue.
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