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P1835 Acura Code - Kick-Down Switch Always ON

Quick Answer

The P1835 diagnostic trouble code (DTC) for Acura vehicles indicates that the kick-down switch is always in the ON position. Common causes include Faulty kick-down switch, Wiring or connection issues, Malfunctioning TCM. 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
P1835 Acura indicates Kick-Down Switch Always ON.
Common causes
Common causes include Faulty kick-down switch, Wiring or connection issues, Malfunctioning TCM.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P1835 Acura Description

The P1835 diagnostic trouble code (DTC) for Acura vehicles indicates that the kick-down switch is always in the ON position. The kick-down switch is an important component of the vehicle's transmission system. It is responsible for signaling the transmission control module (TCM) to downshift into a lower gear when the accelerator pedal is fully depressed, providing the vehicle with extra power for acceleration.

OBDII Code P1835 Acura - Kick-Down Switch Always ON
P1835 Acura Code - Kick-Down Switch Always ON

Common Causes of P1835 Acura

  1. Faulty kick-down switch
  2. Wiring or connection issues
  3. Malfunctioning TCM
  4. Electronic control unit (ECU) malfunction
  5. Transmission fluid contamination or degradation

Symptoms of P1835 Acura

  1. Harsh or abrupt downshifts
  2. Poor fuel efficiency
  3. Reduced acceleration
  4. Sluggish performance

How to Fix P1835 Acura

  1. Perform a diagnostic scan to retrieve the trouble codes and identify the specific issue causing the kick-down switch to be stuck in the ON position.
  2. Inspect the kick-down switch for any signs of damage or malfunction. Replace the switch if necessary.
  3. Check the wiring and connections related to the kick-down switch for any loose connections or damage. Repair or replace as needed.
  4. Test the TCM and ECU for any faults or malfunctions that may be causing the kick-down switch issue.
  5. Clear the DTC and test drive the vehicle to ensure that the repair has resolved the problem.

Cost to Fix P1835 Acura

The cost of repairing the P1835 code for an Acura vehicle can vary depending on the specific issue causing the kick-down switch to be stuck in the ON position. On average, the repair costs can range from $200 to $500, including parts and labor. However, it is important to note that the actual cost may vary based on factors such as location, vehicle make and model, and the extent of the repair needed. It is recommended to consult with a qualified mechanic or auto repair shop to obtain a more accurate estimate based on the specific circumstances.

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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 P1835 Acura Code

What does the OBDII code P1835 mean for an Acura?

P1835 indicates that the kick-down switch is stuck in the "ON" position, which can affect automatic transmission performance and shifting behavior.

What are the common symptoms of code P1835 in an Acura?

Symptoms may include erratic or delayed shifting, reduced acceleration, poor fuel efficiency, and the transmission staying in lower gears.

What causes the P1835 code to appear on an Acura?

Common causes include a malfunctioning kick-down switch, wiring issues, electrical shorts, or a damaged transmission control module (TCM).

How can I diagnose code P1835 on my Acura?

You can inspect the kick-down switch and its wiring for damage or shorts, check the TCM for faults, and use a diagnostic scan tool to monitor live transmission data.

Can I drive my Acura with the P1835 code active?

While the vehicle may remain drivable, prolonged driving with this code can lead to transmission issues and reduced performance. Addressing the problem promptly is recommended.

How do I repair the P1835 code on an Acura?

Repairs may involve replacing the kick-down switch, repairing damaged wiring, or reprogramming or replacing the TCM if necessary.

What tools do I need to fix the P1835 code on an Acura?

You’ll need a diagnostic scan tool, multimeter for testing electrical circuits, and possibly basic hand tools for replacing components.

How much does it cost to fix the P1835 code on an Acura?

Costs can vary depending on the extent of the issue. Replacing the kick-down switch may cost $50-$200, while TCM repairs could range from $500-$1,000.

Can a failing kick-down switch cause transmission damage in an Acura?

If left unresolved, a stuck kick-down switch can cause excessive strain on the transmission, potentially leading to long-term damage.

Is the P1835 code specific to Acura vehicles?

While P1835 is primarily associated with Acura vehicles, it may also appear on other vehicles with similar transmission systems and kick-down switch setups.

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