AutoCodes – Mazda – P1652 Mazda

P1652 Mazda Code - Power Steering Pressure Switch Input Malfunction

Quick Answer

The Powertrain Control Module (PCM) counts the number of vehicle speed transitions from 0 to a calibrated speed. Common causes include Vehicle towed with engine running, Faulty Power Steering Pressure (PSP), Power Steering Pressure (PSP) harness is open or shorted. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: P1652 Mazda indicates Power Steering Pressure Switch Input Malfunction.
Common causes: Common causes include Vehicle towed with engine running, Faulty Power Steering Pressure (PSP), Power Steering Pressure (PSP) harness is open or shorted.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 3,179

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 05, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1652 Mazda Description

The Powertrain Control Module (PCM) counts the number of vehicle speed transitions from 0 to a calibrated speed. After a calibrated number of speed transitions, the PCM expects the Power Steering Pressure (PSP) input to change. This DTC is set if the transition is not detected.

OBDII Code P1652 Mazda - Power Steering Pressure Switch Input Malfunction - AutoCodes.com — P1652 Mazda Code - Power Steering Pressure Switch Input Malfunction

What does this mean?

What are the Possible Causes of the DTC P1652 Mazda?

Vehicle towed with engine running
Faulty Power Steering Pressure (PSP)
Power Steering Pressure (PSP) harness is open or shorted
Power Steering Pressure (PSP) circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P1652 Mazda?

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 P1652 Mazda 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 P1652 Mazda code?

Need more information on how to fix the P1652 Mazda code? Get Access to Factory Service Manuals

Need Help with the 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 P1652 Mazda Code

1. What does the OBDII code P1652 mean on a Mazda?

P1652 indicates a malfunction in the Power Steering Pressure Switch Input, which is responsible for monitoring the hydraulic pressure in the power steering system.

2. What are the common symptoms of a P1652 code in a Mazda?

Symptoms may include a check engine light, stiff steering, increased effort to turn the wheel at low speeds, or engine hesitation during steering.

3. What causes the P1652 code on a Mazda?

Common causes include a faulty power steering pressure switch, damaged wiring or connectors, low power steering fluid levels, or a malfunctioning PCM (Powertrain Control Module).

4. Can I continue driving my Mazda with a P1652 code?

While you may be able to drive, it's not recommended. Stiff steering or engine hesitation could compromise safety, especially during low-speed maneuvers.

5. How do I diagnose the P1652 code on my Mazda?

Start by inspecting the power steering pressure switch, checking the wiring and connectors for damage, ensuring the power steering fluid is at the correct level, and using a multimeter to test the switchâ€™s functionality.

6. How is the P1652 code typically fixed?

Repairs may involve replacing the power steering pressure switch, repairing or replacing damaged wiring, refilling or flushing power steering fluid, or, in rare cases, reprogramming or replacing the PCM.

7. How much does it cost to fix a P1652 code on a Mazda?

The repair cost depends on the issue. Replacing the power steering pressure switch typically costs $100-$300, including parts and labor, while more extensive repairs may cost more.

8. Can low power steering fluid cause the P1652 code on a Mazda?

Yes, low or contaminated power steering fluid can affect the pressure sensor's readings and trigger the P1652 code.

9. Will clearing the P1652 code with a scanner fix the issue?

No, simply clearing the code will not resolve the underlying issue. The problem needs to be diagnosed and repaired to prevent the code from returning.

10. Can a faulty PCM cause a P1652 code in a Mazda?

While rare, a malfunctioning PCM could misinterpret the power steering pressure switchâ€™s signals and trigger the code. This is usually diagnosed after ruling out other causes.