What is the purpose of the power steering pressure switch and How tot be tested on Nissan Maxima?

The PSP switch is a normally open switch, mounted in the pressure line between the steering gear and the power steering pump. When steering system pressure reaches a high-pressure setpoint, the power steering pressure switch closes and sends a signal to the PCM that the PCM uses to maintain engine idle speed during parking maneuvers. The PCM can detect switch problems and set trouble codes to indicate specific faults. Check the operation of the power steering pressure switch if the engine stalls during parking or if the engine idles continuously at high rpm. Performing the following test will set a diagnostic trouble code and illuminate the Check Engine light. Be prepared to clear the diagnostic trouble code after performing the tests and making the necessary repairs. Disconnect the power steering pressure switch connector and connect an ohmmeter to the terminals on the switch body. Start the engine and let it idle. Make sure the meter leads, loose clothing, long hair, etc. are away from the moving parts of the engine before starting the engine. Turn the steering wheel to point the front wheels straight ahead and read the ohmmeter. It should indicate an open circuit. Turn the steering wheel to either side and watch the ohmmeter. The power steering pressure switch should close as the wheel nears the steering stop on either side, and the meter should indicate continuity of close to zero ohms. If the switch fails either test, replace it. If the switch is OK, troubleshoot the engine idle control operation if high idle speed or stalling problems continue. Also check the wiring harness for an open circuit to the PCM or a damaged harness and check for continuity to ground on the black wire of the harness connector. Disconnect the electrical connector from the switch. Using a back-up wrench on the hex fitting, unscrew the switch from the junction block. Install and connect the new switch. Bleed air from the power steering system. Add fluid as required.

Genuine Nissan Maxima Power Steering Pressure Switch

Power Steering Oil Pressure Switch

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8 Power Steering Pressure Switches found

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Nissan Maxima Sensor Assembly - Pressure, Power Steering
Part Number: 49763-6N20A
$112.31 MSRP: $158.63
You Save: $46.32 (30%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Power Steering Pressure Sensor
- Replaces: 49763-6N200
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 2001-2014 Nissan Maxima | GLE, GXEL, LE, Premium, S, SE, SEL, SES, SL, Sport, SR, SV | 6 Cyl 3.5L | VQ35DE
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Nissan Maxima Switch-PRESSRE
Part Number: 49761-V5400
$94.63 MSRP: $137.05
You Save: $42.42 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Power Steering Pressure Switch; Pressure Switch
- Replaces: 49761-1B020, 49761-0B000
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 1985-1994 Nissan Maxima | DX, GXE, SE, SL/GL | 6 Cyl 3.0L | VE30DE, VG30E
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Nissan Maxima Sensor Assembly - Pressure, Power Steering
Part Number: 49763-6N200
$112.31 MSRP: $158.63
You Save: $46.32 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Power Steering Pressure Sensor
- Manufacturer Note: F/ NON ABS
- Replaced by: 49763-6N20A
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 2001-2008 Nissan Maxima | GLE, GXEL, SE, SEL, SES, SL | 6 Cyl 3.5L | VQ35DE
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Nissan Maxima Switch-Pressure,Power Steering
Part Number: 49761-7P900
$103.29 MSRP: $142.27
You Save: $38.98 (28%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Power Steering Pressure Switch. This item subject to a 40% restocking fee if returned.; Pressure Switch
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 2000-2002 Nissan Maxima | GLE, GXE, GXEL, SE, SES | 6 Cyl 3.0L | VQ30DE
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Nissan Maxima Switch-Pressure,Power Steering
Part Number: 49761-2J000
Product Specifications
- Other Name: Power Steering Pressure Switch
- Replaced by: 49761-4P000
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 1996-1999 Nissan Maxima | GLE, GXE, SE | 6 Cyl 3.0L | VQ30DE
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Nissan Maxima Switch-Pressure,Power Steering
Part Number: 49761-40U10
Product Specifications
- Other Name: Power Steering Pressure Switch; Pressure Switch
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 1995-1996 Nissan Maxima | GLE, GXE, SE | 6 Cyl 3.0L | VQ30DE
View related parts
Nissan Maxima Switch-Pressure,Power Steering
Part Number: 49761-4P000
Product Specifications
- Other Name: Power Steering Pressure Switch; Pressure Switch
- Replaces: 49761-2J000
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 1996-1999 Nissan Maxima | GLE, GXE, SE | 6 Cyl 3.0L | VQ30DE
View related parts
Nissan Maxima Switch Press-Power Steer
Part Number: 49761-40U20
Product Specifications
- Other Name: Power Steering Pressure Switch
- Replaced by: 49761-40U22
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 1995-1997 Nissan Maxima | GLE, GXE, SE | 6 Cyl 3.0L | VQ30DE

Nissan Maxima Power Steering Pressure Switch

The Nissan Maxima Power Steering Pressure Switch ensures a smooth low-speed maneuver by allowing the engine computer to anticipate extra hydraulic load, preventing motor stumble. The Power Steering Pressure Switch is mounted in the high-pressure hose. It closes whenever the pressure of the fluid exceeds a certain limit when parking or cornering tight. This provides a signal to the ECU to bump up the idle speed of the sedan to prevent stalling. The earlier generations of Maxima models relied on a simple two-wire, on/off Power Steering Pressure Switch that was applied merely to indicate whether pressure has passed its limit. The later Nissan models were tied into variable assist systems. These applied a more responsive Power Steering Pressure Switch. This switch works along with speed and steering angle inputs to improve road feel, using the right pump output. The core idea remained the same. The switch protects the engine from stalling and assists in avoiding heavy steering effort. Troubleshooting typically focuses on checking for leaked fluid or a broken circuit before replacing other steering parts because it works electrically but senses hydraulics. As a result, it is an inexpensive component that protects every Nissan Maxima steering system. Regular inspection of the Power Steering Pressure Switch helps ensure confident turns every day.

If you need any OEM Nissan Maxima Power Steering Pressure Switch, feel free to choose them out of our huge selection of genuine Nissan Maxima Power Steering Pressure Switch. All our parts are offered at unbeatable prices and are supported by the manufacturer's warranty. In addition, we offer quick shipping to have your parts delivered to your door step in a matter of days.

Nissan Maxima Power Steering Pressure Switch Parts Questions & Experts Answers

Switch-PRESSRE
49761-V5400
Q: What is the purpose of the power steering pressure switch and How tot be tested on Nissan Maxima?
A:
The PSP switch is a normally open switch, mounted in the pressure line between the steering gear and the power steering pump. When steering system pressure reaches a high-pressure setpoint, the power steering pressure switch closes and sends a signal to the PCM that the PCM uses to maintain engine idle speed during parking maneuvers. The PCM can detect switch problems and set trouble codes to indicate specific faults. Check the operation of the power steering pressure switch if the engine stalls during parking or if the engine idles continuously at high rpm. Performing the following test will set a diagnostic trouble code and illuminate the Check Engine light. Be prepared to clear the diagnostic trouble code after performing the tests and making the necessary repairs. Disconnect the power steering pressure switch connector and connect an ohmmeter to the terminals on the switch body. Start the engine and let it idle. Make sure the meter leads, loose clothing, long hair, etc. are away from the moving parts of the engine before starting the engine. Turn the steering wheel to point the front wheels straight ahead and read the ohmmeter. It should indicate an open circuit. Turn the steering wheel to either side and watch the ohmmeter. The power steering pressure switch should close as the wheel nears the steering stop on either side, and the meter should indicate continuity of close to zero ohms. If the switch fails either test, replace it. If the switch is OK, troubleshoot the engine idle control operation if high idle speed or stalling problems continue. Also check the wiring harness for an open circuit to the PCM or a damaged harness and check for continuity to ground on the black wire of the harness connector. Disconnect the electrical connector from the switch. Using a back-up wrench on the hex fitting, unscrew the switch from the junction block. Install and connect the new switch. Bleed air from the power steering system. Add fluid as required.

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