AutoCodes – Acura – P1899 Acura

P1899 Acura Code - CVT Drive Pulley Pressure Control Valve Stuck OFF or ON

Quick Answer

The Continuously Variable Transmission (CVT) drive pulley pressure control solenoid valve and the CVT driven pulley pressure control solenoid valve control hydraulic pressure. Common causes include CVT Drive Pulley Pressure Control Valve Stuck OFF or ON, Faulty CVT Drive Pulley Pressure Control Valve, CVT Drive Pulley Pressure Control Valve 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: P1899 Acura indicates CVT Drive Pulley Pressure Control Valve Stuck OFF or ON.
Common causes: Common causes include CVT Drive Pulley Pressure Control Valve Stuck OFF or ON, Faulty CVT Drive Pulley Pressure Control Valve, CVT Drive Pulley Pressure Control Valve 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 249

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 Jan 24, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1899 Acura Description

The Continuously Variable Transmission (CVT) drive pulley pressure control solenoid valve and the CVT driven pulley pressure control solenoid valve control hydraulic pressure. The CVT drive pulley pressure control solenoid valve and the CVT driven pulley pressure control solenoid valve is controlled by duty cycle output. The spool in the CVT drive pulley pressure control solenoid valve and the CVT driven pulley pressure control solenoid valve moves the valve according to the current and produce hydraulic pressure in proportion to the current. The powertrain control module (PCM) measures the current that passes through the CVT drive pulley pressure control solenoid valve and the CVT driven pulley pressure control solenoid valve and uses feedback control to compensate for the difference between the measured current and the commanded one. To shift the transmission properly, the PCM outputs a drive/driven pulley oil pressure control signal. If the pulley ratio is overdrive while the vehicle is stopped with the forward clutch engaged, the estimated input torque when starting is a specified value or less, and belt slippage does not occur when driving, the PCM detects a CVT drive pulley pressure control solenoid valve stuck OFF failure or a CVT driven pulley pressure control solenoid valve stuck ON and stores a DTC.

OBDII Code P1899 Acura - CVT Drive Pulley Pressure Control Valve Stuck OFF or ON - AutoCodes.com — P1899 Acura Code - CVT Drive Pulley Pressure Control Valve Stuck OFF or ON

What does this mean?

What are the Possible Causes of the DTC P1899 Acura?

CVT Drive Pulley Pressure Control Valve Stuck OFF or ON
Faulty CVT Drive Pulley Pressure Control Valve
CVT Drive Pulley Pressure Control Valve harness is open or shorted
CVT Drive Pulley Pressure Control Valve circuit poor electrical connection

How to Fix the DTC P1899 Acura?

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 P1899 Acura 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 P1899 Acura code?

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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 P1899 Acura Code

What does the OBDII code P1899 mean for an Acura?

The code P1899 indicates that the CVT Drive Pulley Pressure Control Valve is stuck either OFF or ON, affecting the transmission's ability to properly shift and regulate pressure.

What are common symptoms of the P1899 code on an Acura?

Symptoms include erratic shifting, slipping during acceleration, reduced fuel efficiency, and the check engine light being illuminated.

What causes the CVT Drive Pulley Pressure Control Valve to get stuck?

Causes can include debris or contamination in the transmission fluid, internal valve wear, solenoid failure, or electrical issues like damaged wiring or connectors.

Can driving with the P1899 code damage the vehicle?

Yes, driving with this code can lead to further transmission damage, reduced performance, and potential breakdowns if not addressed promptly.

How can I diagnose the P1899 code?

Diagnosis involves scanning the vehicle for codes, inspecting the valve and solenoid, checking wiring and connectors, and possibly testing the transmission fluid for contamination.

What repairs are typically needed to fix the P1899 code?

Repairs may include cleaning or replacing the pressure control valve, replacing the solenoid, flushing the transmission fluid, or repairing wiring and connectors.

Is a transmission fluid change enough to resolve the P1899 code?

While a fluid change might help if contamination is the issue, additional repairs may be needed if the valve or solenoid is damaged or stuck.

Can a faulty solenoid cause the P1899 code?

Yes, a malfunctioning solenoid can prevent the pressure control valve from operating properly, leading to this code.

How much does it cost to repair the P1899 code on an Acura?

Repair costs can vary widely but may range from $200 to $1,000 depending on whether the valve, solenoid, or other transmission components need replacement.

Can the P1899 code be prevented?

Preventative measures include regular transmission fluid changes, using high-quality fluid, and promptly addressing any transmission-related issues.