Question about 2001 Buick Century

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HOW DO I LOCATE AND REPLACE A PNP NEUTRAL SAFETY SWITCH ON A 2001 BUICK CENTURY

NO PNP PARK/NEUTRAL POSITION SWITCH

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  • Expert
  • 306 Answers

On top of the transmission, has a triangle shape. Backup light switch is incorporated into it. Has to be adjusted to Neutral position with transmission in Neutral to get it right. Be careful to chock the tires so the car cannot roll and use the hand brake for added safety.

Posted on Nov 29, 2014

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Posted on Jan 02, 2017

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Tech jk
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SOURCE: need to locate the neutral safety switch on a 2005 chevy equinox

The park / neutral switch is on top of the transmission. It has a 2 wire connector. the wire colors are pink and orange/black. Tech jk

Posted on Dec 06, 2008

emissionwiz
  • 76070 Answers

SOURCE: 2001 Buick Century I have a problem with

about $100, mostly labor on the dash illumination issue.

Posted on Feb 24, 2009

  • 523 Answers

SOURCE: replace neutral safety switch on a 1988 gmc sierra

Typically the Neutral Safety Switches are located with the gear selector, either in the column or the floor.

Hope this helps,
Tom

Posted on Aug 21, 2009

ZJLimited
  • 17970 Answers

SOURCE: Looking for the neutral safety switch

Neutral Safety/Back-up Light Switch

This is a combination switch which controls both Neutral Safety and Back-up lamp circuits.

C6 Transmission


8290dff.jpg

C6 neutral start switch

  1. Disconnect the negative battery cable.
  2. Raise and safely support the vehicle on jackstands.
  3. Remove the downshift linkage rod return spring at the low-reverse servo cover.
  4. Coat the outer lever attaching nut with penetrating oil. Remove the nut and lever.
  5. Remove the 2 switch attaching bolts, disconnect the wiring at the connectors and remove the switch.
  6. Installation is the reverse of removal. Adjust the switch and tighten the bolts to 55-75 inch lbs. (6.2-8.5 Nm).
  7. Remove the jackstands and lower the vehicle.
  8. Connect the negative battery cable.
AOD Transmission

e7f4231.jpg

Removing the AOD neutral start switch
  1. Disconnect the negative battery cable.
  2. Raise and safely support the vehicle on jackstands.
  3. Disconnect the wiring from the switch.
  4. Using a deep socket, unscrew the switch.
  5. Installation is the reverse of removal. Tighten the switch to 10 ft. lbs. (14 Nm).
  6. Remove the jackstands and lower the vehicle.
  7. Connect the negative battery cable.
4R70W Transmission

2f68dfc.jpg


Removing the Manual Lever Position (MLP) sensor

As of 1994, the neutral safety switch is referred to as a Manual Lever Position Sensor (MLP).
  1. Disconnect the negative battery cable.
  2. Raise and safely support the vehicle on jackstands.
  3. Disengage the harness connector from the MLP sensor.
  4. Remove the 2 sensor attaching bolts and remove the sensor.
To install:
  1. Install the MLP sensor and install retaining bolts. Do not tighten, the sensor requires adjustment.
  2. Adjust the MLP sensor then tighten attaching screws to 80-100 inch lbs. (9-11 Nm).
  3. Remove the jackstands and lower the vehicle.
  4. Connect the negative battery cable.


ADJUSTMENT

C6 Transmission
  1. Hold the steering column transmission selector lever against the Neutral stop.
  2. Move the sliding block assembly on the neutral switch to the Neutral position and insert a 0.091 in. (2.3mm) gauge pin in the alignment hole on the terminal side of the switch.
  3. Move the switch assembly housing so that the sliding block contacts the actuating pin lever. Secure the switch to the outer tube of the steering column and remove the gauge pin.
  4. Check the operation of the switch. The engine should only start in Neutral and Park .

4R70W Transmission


4cc4151.jpg


Adjusting the MLP sensor

Park is the last detent when the manual control lever is full forward. Return 2 detents toward the output shaft for Neutral.
  1. Position the manual control lever in Neutral .
  2. Insert Gear Position Sensor Adjuster tool T93P-700 10-A or equivalent, into the slots.
  3. Align all 3 slots on the MLP sensor with 3 tabs on the tool.
  4. Tighten the attaching screws to 80-100 inch lbs. (9-11 Nm).

I hope help you. Good luck (rated this help).

Posted on Sep 18, 2009

  • 91 Answers

SOURCE: i need the location of a neutral safety switch on

I take it that you have an automatic transmission the shift selector /neutral saftey switch switch is located on top of the transmission were the shift cable connects to the trans. Remove the 13 mm nut in the center of the switch and remover the shift cable and lever noting the location of the lever. then remove the bolts holsing the switch to the transmission and the elec connector.

Posted on Feb 25, 2010

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Circuit Description
For ignition switch power modes refer to Body Control System Description and Operation. Once the ignition is placed in the Run/Crank position, the control circuit of the Run/Crank relay is grounded by the body control module (BCM). With the Run/Crank relay switch closed, battery positive voltage flows through it and on to the park/neutral position (PNP) switch. With the PNP switch in either the Park or Neutral position, battery positive voltage will flow to the starter relay coil supply voltage input terminal of the powertrain control module and the coil side of the starter relay. Placing the ignition in the START position sends a message to the engine control module (ECM)/powertrain control module (PCM) requesting engine start. If the ECM/PCM has determined that the transmission is in Park or Neutral and theft is not active, it will ground the control circuit of the starter relay. Battery positive voltage will then flow through the switch side of the starter relay to the S terminal of the starter solenoid, cranking the engine. For remote vehicle start (RVS) information, refer to Keyless Entry System Description and Operation.

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LOCATE AND REPLACE PNP ON A 2001 BUICK CENTURY


If you're talking about the Park Neutral Safety Switch, it's on the linkage right up against the transmission, driver side under the hood. If you're not talking about the Neutal Safety Switch, then spell out exactly what you want and do not abbreviate.

Nov 28, 2014 | 2001 Buick Century

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II can't shift my car out of park


Did you depress brake? Could be a neutral safety switch or your shift linkage is broken.

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We're is the parking reverse neautral circuit on a montero xls 2001 4x4


Hi .

If its the PNP switch that you are looking for this is on the side of your transmission
62e79521-1c6f-49ac-b2bc-50b047114bae.png

Jun 03, 2014 | 2001 Mitsubishi Montero

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Where is the neutral safety switch on a 1998 buick regal?


Hi there:

The backup lamps will light whenever the ignition switch is in the RUN position and the transaxle is in REVERSE. On older vehicles, this function was handled by a dedicated switch with a name such as the Neutral/Safety Backup Light Switch, or something similar. This switch was designed to keep the engine from starting in any gear except PARK and/or NEUTRAL. The switch contacts also activated the backup lights when the transaxle was placed in REVERSE.


On the vehicles covered by this manual, the backup lamp control function is part of an integrated switch called the Transaxle Range switch (sometimes also called the Park/Neutral Position or PNP switch). In addition to turning on the backup lights, the Transaxle Range switches primary function is to transmit to the Powertrain Control Module (PCM) the driver's transaxle range selection. The PCM uses this information to control both engine and transaxle functions electronically.


The Transaxle Range switch is mounted externally on the transaxle. New service replacement switches come pinned in the NEUTRAL position and no adjustment should be necessary. Please note that if the switch requires adjustment, GM recommends that their special tool J 41545 Park/Neutral Switch Alignment Tool be used to properly adjust the Transaxle Range switch, if required.


Removal & Installation

  1. Apply the parking brake and block the front wheels.
  2. Place the transaxle gear selector to NEUTRAL.
  3. Remove the air intake duct to access the switch located on the top of the transaxle at the range selector cable and arm.
  4. Disconnect the transaxle range selector cable.
  5. Detach the electrical connectors from the range selector switch.
  6. Remove the range selector lever retaining nut and lift off the lever.
  7. Unfasten the range selector switch mounting bolts, then remove the switch from the transaxle manual shaft.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

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I have a 01 ford taurus whit p0705 transmission code and i have no idea what this mean


Code P0705 - Transmisson Range Sensor Circuit (PRNDL Input)
The transmission range switch detects the selector lever position and sends a signal to the TCM.

The park/neutral position (PNP) switch includes a transmission range switch. The transmission range switch detects the selector lever position when the shift lever is in the N or P shift position and sends a signal to the Transmission Control Module (TCM).

Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)

Possible causes
- Open or short park/neutral position switch circuit
- Poor park/neutral position switch circuit connection
- Misadjusted park/neutral position switch
- Park/neutral position switch may be faulty

Keep us updated (remember to rate thsi answer).

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P0705 - Transmission Range Sensor Malfunction. The park/neutral position (PNP) switch includes a transmission range switch. The transmission range switch detects the selector lever position when the shift lever is in the N or P shift position and sends a signal to the Transmission Control Module (TCM). The possible causes of this are the following: Open or short park/neutral position switch circuit. Poor park/neutral position switch circuit connection. Misadjusted park/neutral position switch. Park/neutral position switch may be faulty. Inspect the pnp switch and replace if needed.

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P1780 - Park/Neutral Position [PNP] Switch Circuit .The connector to the neutral safety switch is probably faulty and may require replacement of the plug and neutral safety switch.

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