What is the function and testing procedure of the Power Steering Pressure Switch on the Nissan Quest?

The power steering pressure (PSP) switch is a normally open switch located in the pressure line between the steering gear and the power steering pump. It closes when the steering system pressure reaches a high-pressure setpoint, sending a signal to the PCM to maintain engine idle speed during parking maneuvers. The Electronic Engine Control (EEC) system can detect issues with the switch and set trouble codes for specific faults. To check the operation of the PSP switch, disconnect its connector and connect an ohmmeter to the terminals on the switch body. Start the engine and let it idle, then turn the steering wheel to point the front wheels straight ahead; the ohmmeter should indicate an open circuit. As the steering wheel is turned to either side, the PSP switch should close near the steering stop, showing continuity close to zero ohms. If the switch fails either test, it should be replaced. For replacement, disconnect the electrical connector from the switch, drain the fluid from the high-pressure line using a suitable drain pan, and unscrew the switch from the high-pressure line using a back-up wrench. Finally, install and connect the new switch, bleed air from the power steering system, and add fluid as necessary.

Genuine Nissan Quest Power Steering Pressure Switch

Power Steering Oil Pressure Switch

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5 Power Steering Pressure Switches found

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Nissan Quest 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:
- 1993-1998 Nissan Quest | GXE, XE | 6 Cyl 3.0L | VG30E
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Nissan Quest 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
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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:
- 2004-2010 Nissan Quest | Base, S, SE, SL | 6 Cyl 3.5L | VQ35DE
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Nissan Quest Switch-Pressure, Power Steering
Part Number: 49761-9E005
$37.96 MSRP: $54.98
You Save: $17.02 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Power Steering Pressure Switch
- Replaced by: 49761-9E020
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 1999-2003 Nissan Quest | GXE, SE | 6 Cyl 3.3L | VG33E
View related parts
Nissan Quest Switch-Pressure,Power Steering
Part Number: 49761-1B020
$94.63 MSRP: $137.05
You Save: $42.42 (31%)
ADD TO CART
Product Specifications
- Other Name: Power Steering Pressure Switch
- Replaced by: 49761-V5400
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 1995-1998 Nissan Quest | GXE, XE | 6 Cyl 3.0L | VG30E
View related parts
Nissan Quest Switch-Pressure,Power Steering
Part Number: 49761-0B000
$94.63 MSRP: $137.05
You Save: $42.42 (31%)
ADD TO CART
Product Specifications
- Other Name: Power Steering Pressure Switch
- Replaced by: 49761-V5400
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 1993-1996 Nissan Quest | GXE, XE | 6 Cyl 3.0L | VG30E

Nissan Quest Power Steering Pressure Switch

The Nissan Quest Power Steering Pressure Switch helps keep the minivan from stalling at low speeds by telling the engine computer when steering effort suddenly loads the hydraulic pump. Mounted in the high pressure line, this Power Steering Pressure Switch senses when fluid pressure spikes during tight maneuvers like parking, it then sends a signal so the engine control unit bumps idle speed, giving the pump the torque it needs and preserving smooth steering feel. Early Quest models applied a simple on off style Power Steering Pressure Switch that closed at a preset pressure threshold, while later Nissan vans adopted a more refined variable signal Power Steering Pressure Switch that could relay stepped information to cooperate with speed sensitive assist for finer idle control. Regardless of version, the unit remains compact, threaded into the steering hose, and uses an internal diaphragm and spring to convert hydraulic force into an electrical message. Ignoring a faulty Power Steering Pressure Switch risks rough idle or unexpected engine stalls during sharp turns for any Nissan Quest driver.

If you need any OEM Nissan Quest Power Steering Pressure Switch, feel free to choose them out of our huge selection of genuine Nissan Quest 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 Quest Power Steering Pressure Switch Parts Questions & Experts Answers

Switch-PRESSRE
49761-V5400
Q: What is the function and testing procedure of the Power Steering Pressure Switch on the Nissan Quest?
A:
The power steering pressure (PSP) switch is a normally open switch located in the pressure line between the steering gear and the power steering pump. It closes when the steering system pressure reaches a high-pressure setpoint, sending a signal to the PCM to maintain engine idle speed during parking maneuvers. The Electronic Engine Control (EEC) system can detect issues with the switch and set trouble codes for specific faults. To check the operation of the PSP switch, disconnect its connector and connect an ohmmeter to the terminals on the switch body. Start the engine and let it idle, then turn the steering wheel to point the front wheels straight ahead; the ohmmeter should indicate an open circuit. As the steering wheel is turned to either side, the PSP switch should close near the steering stop, showing continuity close to zero ohms. If the switch fails either test, it should be replaced. For replacement, disconnect the electrical connector from the switch, drain the fluid from the high-pressure line using a suitable drain pan, and unscrew the switch from the high-pressure line using a back-up wrench. Finally, install and connect the new switch, bleed air from the power steering system, and add fluid as necessary.