How to Remove and Install the Power Steering Pressure Switch on an Acura MDX?

The PSP switch is installed above the end part of the steering gear. First of all, lift the forepart of the car and, having steadied it on jackstands, immobilise it in this position. Subsequently remove the PSP switch electrical connector. To remove the PSP switch electrical connector, push the lock tab, and take off the connector. Move to removed the nut for PSP switch with a wrench. It is advisable to have a second wrench on the power steering fluid line in order to avoid pinching the line and in the process some fluid is shed. Installation, on the other hand, just entails the opposite of how it was done during removal, tightening of the PSP switch is enough. Last, drop the car or truck and look at the quantity of power steering fluid, adding the correct style of fluid if necessary.

Genuine Acura MDX Power Steering Pressure Switch

Power Steering Oil Pressure Switch

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Acura MDX Power Steering Oil Pressure Switch Compatible
Part Number: 56490-P0H-013
$111.23 MSRP: $157.10
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Product Specifications
- Other Name: Switch Assembly, Power Steering Pressure (Texas); Power Steering Pressure Switch, Pressure Switch
- Replaces: 56490-P0H-003
- Warranty: This genuine part is guaranteed by Acura's factory warranty.

Acura MDX Power Steering Pressure Switch

The Acura MDX Power Steering Pressure Switch protects the engine from stalling as hydraulic pressure spikes in the steering lines are detected. An alert is sent to the engine control unit to increase the idle speed any time the wheel is cranked hard at low speed. Mounted in the high-pressure side of the hydraulic circuit, this Power Steering Pressure Switch remains closed under normal cruising circumstances and then opens when the pressure in the hydraulic pump reaches a calibrated threshold. It sends an electrical signal through a two-wire connector to the computer. Early MDX models were based on a simple binary Power Steering Pressure Switch with the sole responsibility of stall prevention. However, later MDX versions continue to provide this basic function but connect the same signal into variable assist steering logic, which also takes into account vehicle speed and steering angle. This provides less effort in parking lots yet increased firmness on the highway. Routine diagnostics can view the on-off state of the Power Steering Pressure Switch with Acura scan tools, confirming correct response. Regardless of year, the Power Steering Pressure Switch shares a rugged, threaded brass body, O-ring seal, and quick-disconnect harness and differs primarily in connector shape as well as pressure rating to suit Acura pump outputs of specific generations.

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Acura MDX Power Steering Pressure Switch Parts Questions & Experts Answers

Power Steering Oil Pressure Switch Compatible
56490-P0H-013
Q: How to Remove and Install the Power Steering Pressure Switch on an Acura MDX?
A:
The PSP switch is installed above the end part of the steering gear. First of all, lift the forepart of the car and, having steadied it on jackstands, immobilise it in this position. Subsequently remove the PSP switch electrical connector. To remove the PSP switch electrical connector, push the lock tab, and take off the connector. Move to removed the nut for PSP switch with a wrench. It is advisable to have a second wrench on the power steering fluid line in order to avoid pinching the line and in the process some fluid is shed. Installation, on the other hand, just entails the opposite of how it was done during removal, tightening of the PSP switch is enough. Last, drop the car or truck and look at the quantity of power steering fluid, adding the correct style of fluid if necessary.