Question about 1991 Honda Accord

2 Answers

Shift lock parking break

The shift lock does not release when i step on the brake pedal

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  • jeff_boy50 Sep 25, 2009

    hi its me again, i was told to keep flicking the solenoid so it will get loose. and the lock will release

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2 Answers

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Ck if your brake lights are working, if not, ck the fuse. if fuse is good and brake lights work, could be problem with solenoid not unlocking the lever, there should be a bypass so you can get it into gear (small slot near shifer, put your key in there to release shifter)

Posted on Sep 25, 2009

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My brake lights went out and I couldn't shift out of park without inserting key into shift lock release slot. After replacing the brake light switch (to no avail) as suggested by other posts, I checked the fuse panel under the hood. "Horn stop" fuse was blown. After replacing, problem was solved.

Posted on Dec 06, 2010

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1 Answer

2005 cts won't sift out of park, press the brake pedal and start the car, just won't shift out of park


You probably have a problem with

Automatic Transmission Shift Lock Control System
The automatic transmission shift lock control system is a safety device that prevents an inadvertent shift out of PARK when the engine is running. The driver must press the brake pedal before moving the shift lever out of the PARK position. The system consists of the following components.
• The automatic transmission shift lock control solenoid
• The brake switch
• The rear integration module (RIM)
• The transmission control module (TCM) or powertrain control module (PCM)
With the ignition ON, battery positive voltage is supplied to the automatic transmission shift lock control solenoid from the ignition 3 relay. The automatic transmission shift lock control solenoid is controlled by the rear integration module. When the rear integration module (RIM) receives a class 2 serial data message from the transmission control module (TCM) or powertrain control module (PCM) indicating that the shift lever is in the PARK position the rear integration module (RIM) grounds the automatic transmission shift lock control solenoid control circuit. This causes the solenoid to energize mechanically locking the shift lever in the PARK position. When the driver presses the brake pedal the rear integration module receives the brake applied signal and turns off the ground to the automatic transmission shift lock control solenoid control circuit. This allows the shift lever to be moved out of the PARK position.

Shift Lever Does Not Move with Brake Pedal Depressed

2
Apply the parking brake and block the wheels.
Turn ON the ignition, with the engine OFF.
Attempt to move the shift lever out of the PARK position.
Does the shift lever move out of the PARK position?
YES - Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
NO - Go to Step 3
3
Turn OFF the ignition.
Install a scan tool.
Turn ON the ignition, with the engine OFF.
With a scan tool, observe the TCC brake switch parameter in the transmission data display list.
Press and release the brake pedal several times.
Does the TCC brake switch status turn ON and OFF with the brake pedal?
YES - Go to Step 4
NO - Go to Stop Lamps Inoperative in Lighting Systems
4
With a scan tool, observe the brake to shift control parameter in the rear integration module data list.
Press and release the brake pedal several times.
Does the brake to shift control status turn ON and OFF with the brake pedal?
YES - Go to Step 5
NO - Go to Step 8
5
Turn OFF the ignition.
Connect a test lamp between the automatic transmission shift lock control solenoid supply voltage circuit and the automatic transmission shift lock control solenoid control circuit at the automatic transmission shift lock control solenoid.
Turn ON the ignition, with the engine OFF.
With a scan tool, command the brake to shift control ON and OFF several times while observing the test lamp.
Does the test lamp turn ON and OFF with each command?
YES - Go to Step 7
NO - Go to Step 6
6
Test the automatic transmission shift lock control solenoid control circuit for and open or short to battery voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
YES - Go to Step 11
NO - Go to Step 8
7
Inspect for poor connection at the harness connector of the automatic transmission shift lock control solenoid. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
YES - Go to Step 11
NO - Go to Step 9
8
Inspect for poor connections at the harness connector of the rear integration module (RIM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Yes - Go to Step 11
NO - Go to Step 10
9
Replace the automatic transmission shift lock control solenoid. Refer to Automatic Transmission Shift Lock Actuator Replacement .
YES - Did you complete the replacement?
NO - Go to Step 11
--
10
Replace the RIM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.
YES - Did you complete the replacement?
NO - Go to Step 11
--
11
Operate the system in order to verify the repair.
Did you find and correct the condition?
YES - System OK
NO - Go to Step 2

Mar 25, 2017 | Cadillac CTS Cars & Trucks

1 Answer

2010 merc gm shift lever stuck in park car will start steering wheel turns


You have a shift interlock problem . What kind of vehicle ? a mercury what ?
Shift Interlock System
The shift interlock system prevents shifting from PARK unless the brake pedal is depressed. The shift interlock system consists of a shift lock actuator mounted on the selector lever. If the ignition switch is in the RUN position, the shift lock actuator is disabled when the brake pedal is depressed.
If the selector lever will not move out of PARK with the key in the ON position and the brake pedal depressed, it will need to be unlocked manually.
Do the brake lights work ?
Visually inspect for obvious signs of mechanical and electrical damage; refer to the following chart:

Visual Inspection Chart Mechanical Electrical
  • Damaged shift lock actuator
  • Damaged transmission control (TC) switch
  • Damaged shift interlock switch
  • Failed fuse(s):
    • F20 (10A)
    • F22 (15A)
  • Damaged wiring harness
  • Loose or corroded connections
  • Damaged shift interlock switch
Symptom Chart Condition Possible Sources Action
  • Shift interlock system does not release/lock correctly
  • Circuitry
  • Fuse(s):
    • F20 (10A)
    • F22 (15A)
  • Brake pedal position (BPP) switch
  • Brake shift interlock actuator
  • Brake shift interlock actuator module
  • Go To Pinpoint Test A .
PINPOINT TEST A: SHIFT INTERLOCK SYSTEM DOES NOT RELEASE/LOCK CORRECTLY Test Step Result / Action to Take A1 TEST THE BRAKE LIGHTS
  • Apply brake pedal and view brake lights.
  • Do brake lights illuminate?
Yes
GO to A7 .

No
GO to A2 . A2 TEST FUSE F22 (15A)
  • Key in OFF position.
  • Check fuse: Smart Junction Box (SJB) Fuse F22 (15A).
  • Is the resistance less than 5 ohms?
Yes
GO to A4 .

No
GO to A3 . A3 TEST THE CIRCUIT FOR A SHORT TO GROUND
  • Key in OFF position.
  • Disconnect: Brake Pedal Position (BPP) Switch.
  • Measure the resistance between pin 1 and ground.
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  • Is the resistance greater than 10,000 ohms?
Yes
GO to A4 .

No
REPAIR circuit for short to ground. TEST the system for normal operation
Do

Jun 19, 2016 | 2010 Mercury Grand Marquis

1 Answer

How do I get shifter out of park?


The automatic transmission shift lock control system is a safety device that prevents an inadvertent shift out of PARK when the engine is running. The driver must press the brake pedal before moving the shift lever out of the PARK position. The system consists of the following components:
?€¢
The automatic transmission shift lock control solenoid


?€¢
The body control module (BCM)


?€¢
The powertrain control module (PCM)

The BCM controls the voltage to the shift lock control solenoid through the shift lock control solenoid controlled voltage circuit. The following conditions must be met before the BCM will supply voltage to the shift lock control solenoid:
?€¢
The ignition is in the ON position.


?€¢
The PCM sends a class 2 message to the BCM indicating the transmission is in the PARK position.


?€¢
The BCM determines the brake pedal is not applied according to the stop lamp switch.

When the ignition is in the ON position, the ignition 1 fuse supplies voltage to the automatic transmission shift lock control solenoid as the BCM supplies a ground to the control circuit, mechanically locking the shift lever in the PARK position as the solenoid energizes. When the brake pedal is applied, the BCM turns the ground of the control circuit OFF, de-energizing the shift lock control solenoid. The de-energized solenoid releases the mechanical lock allowing the driver to move the shift lever out of the PARK position. When the transmission is out of the PARK position, the shift lock control solenoid remains de-energized.
Your best bet is to take it to the dealer ,may have DTC'S
DTC B2707 Gearshift Unlock Circuit Low
The body control module (BCM) controls the automatic transmission shift lock control solenoid by providing a controlled ground to the automatic transmission shift lock control solenoid. The BCM utilizes a smart driver to monitor the voltage and current flow of the automatic transmission shift lock control solenoid control circuit. DTC B2707 will set when the BCM detects a short to ground when the solenoid is in the OFF state.
DTC B2708 Gearshift Unlock Circuit High
Did you perform the Diagnostic System Check - Vehicle?
Go to Step 2
Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

2

  1. Turn ON the ignition, with the engine OFF.
  2. Press and hold the brake pedal.
  3. Attempt to move the shift lever out of the PARK position.
Does the shift lever move out of the PARK position?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
Go to Step 3

3

  1. Turn OFF the ignition.
  2. Install a scan tool.
  3. Turn ON the ignition, with the engine OFF.
  4. Press and hold the brake pedal.
  5. With a scan tool, command the Brake to Shift Relay output control parameter On.
  6. Attempt to move the shift lever out of the PARK position.
Does the shift lever move out of the PARK position?
Go to Step 4
Go to Step 6

4

  1. With the scan tool, observe the Brake Switch parameter in the powertrain control module (PCM) data display list.
  2. Press and release the brake pedal several times while observing the scan tool.
Does the brake input display Applied and Released with the brake pedal operation?
Go to Step 5
Go to Diagnostic Starting Point - Lighting Systems in Lighting Systems

5

With the scan tool observe the TR Sw. parameter in the body control module (BCM) data list.
Does the scan tool indicate PARK position?
Go to Step 9
Go to Scan Tool Data List in Engine Controls - 3.4L

6

  1. Turn OFF the ignition.
  2. Disconnect the harness connector of the automatic transmission shift lock control solenoid.
  3. Turn ON the ignition, with the engine OFF.
  4. Press and hold the brake pedal.
  5. Attempt to move the shift lever out of the PARK position.
Does the shift lever move out of the PARK position?
Go to Step 7
Go to Step 8

7

Test the controlled ground circuit of the automatic transmission shift lock control solenoid for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 12
Go to Step 9

8

Inspect for poor connections as the harness connector of the automatic transmission shift lock control solenoid. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 12
Go to Step 10

9

Inspect for poor connections at the harness connector of the BCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 12
Go to Step 11

10

Replace the automatic transmission shift lock control solenoid. Refer to Shift Lock Control Solenoid Replacement .
Did you complete the replacement?
Go to Step 12
--

11

Replace the BCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup and programming.
Did you complete the replacement?
Go to Step 12
--

12

Operate the system in order to verify the repair.
Did you find and correct the condition?
System OK
Go to Step 3

Your best bet

Jan 11, 2016 | 2005 Chevrolet Equinox

2 Answers

Why won't 98 Buick century shift into any gear?


is it a linkage issue? if the shift lever is working and you can feel the detents, check your fluid make sure it is full and clean, if not you could have internal issues with the trans

Oct 30, 2015 | Buick Cars & Trucks

1 Answer

Stuck in park will not shift


Automatic Transmission Shift Lock Control System
The automatic transmission shift lock control is a safety device that prevents an inadvertent shift out of PARK when the ignition is ON. The driver must press the brake pedal before moving the shift lever out of the PARK position. The system consists of the following components:
?€¢
The automatic transmission shift lock control solenoid.


?€¢
The automatic transmission shift lock control switch.


?€¢
The park/neutral position switch.

With the ignition in the ON position, battery positive voltage is supplied to the park/neutral position switch. When the transmission is in the PARK position the contacts in the park/neutral position switch are closed. This allows current to flow through the switch to the automatic transmission shift lock control switch. The circuit continues through the normally-closed switch to the automatic transmission shift lock control solenoid. The automatic transmission shift lock control solenoid is permanently grounded. This energizes the automatic transmission shift lock control solenoid, locking the shift linkage in the PARK position. When the driver presses the brake pedal the contacts in the automatic transmission shift lock control switch open, causing the automatic transmission shift lock control solenoid to release. This allows the shift lever to move from the PARK position.
Park Lock Solenoid
The park lock solenoid is a safety device that prevents an inadvertent shift out of PARK when the key is in the OFF position. The key must be in the RUN position to release the park lock solenoid. The system consists of the park lock solenoid. With the ignition in the ON position, voltage is supplied to the park lock solenoid. The park lock solenoid energizes through a permanent ground unlocking the shift lever. With the ignition in the OFF or ACCY position the park lock solenoid de-energizes and locks the shift lever in the park position.
Shift Lever Does Not Move with Brake Pedal Depressed
DEFINITION: Transmission shift lever will not move out of the PARK position with the ignition ON and the brake pedal pressed.

1

Did you perform the Symptoms - Automatic Transmission Shift Lock Control tests and all the necessary inspection?
Go to Step 2
Go to Symptoms - Automatic Transmission Shift Lock Control

2

  1. Turn ON the ignition, with the engine OFF.
  2. Press and hold the brake pedal.
  3. Attempt to move the shift lever out of the PARK position.
Does the shift lever move out of the PARK position?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
NO Go to Step 3

3

  1. Turn OFF the ignition.
  2. Disconnect the automatic transmission shift lock control switch.
  3. Turn ON the ignition, with the engine OFF.
  4. Press and hold the brake pedal.
  5. Attempt to move the transmission shift lever out of the PARK position.
Does the transmission shift lever move out of the PARK position?
Go to Step 6
Go to Step 4

4

  1. Turn OFF the ignition.
  2. Disconnect the automatic transmission shift lock control solenoid.
  3. Turn ON the ignition, with the engine OFF
  4. Press and hold the brake pedal.
  5. Attempt to move the transmission shift lever out of the PARK position.
Does the transmission shift lever move out of the PARK position?
Go to Step 7
Go to Step 5
Inspect for poor connections at the harness connector of the automatic transmission shift lock control solenoid. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 10
Go to Step 9

6

Inspect for poor connections at the harness connector of the automatic transmission shift lock control switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 10
Go to Step 8

7

Repair the short to battery positive voltage in the A/T shift lock control solenoid supply voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 10
--

8

Replace the automatic transmission shift lock control switch. Refer to Stop Lamp Switch Replacement in Lighting Systems.
Did you complete the replacement?

Oct 13, 2015 | 2006 Hummer H2

1 Answer

2005 Ultimate. Why is it difficult to move from park to drive?


shifter interlocker . It's a safety device that won't allow the shifter to be taken out of park unless your foot is on the brake pedal . Your going to break it by forcing out of park . Brake switch could be bad or locking solenoid in gear shifter .
Symptom Chart Condition Possible Sources Action
  • The shift interlock system does not release/lock correctly
  • Circuitry.
  • Fuse(s).
  • Shift lock actuator.
  • Brake pedal position switch.
  • Go To Pinpoint Test E .

Aug 11, 2015 | Lincoln Navigator Cars & Trucks

3 Answers

99 honda accord won't shift out of park


Check your brake light function. If that is at fault then your brake light switch may be faulty. If your brake lights are fine then you may have a faulty shift lock solenoid. Some Japanese models of that era have a button or key slot near to the shift lever. If you depress that then it should manually release the lock and allow you to move through the gears, until you move back to 'P' position at which point it will lock again.

Jul 04, 2014 | Cars & Trucks

2 Answers

Can't get 1995 buick century out of park


This car has a park lock safety system that is released by the application of the brake pedal, so the first thing to do is verify the battery is good, if that is ok then check the brake lights, they must work to release park.

Jun 05, 2012 | 1994 Buick Century

1 Answer

2004 mercury mountaineer got lock in park today,, got it undone. Noticed it said check fuse for the breaks.. I had no break lights.. well, can't figure out which fuse that is.


BRAKE LIGHTS AND SHIFT LOCK
Look under the dash, on the brake pedal arm. There are one or two switches that activate brake lights and/or shift unlock. Check for loose mounting nut or a missing rubber nubber. Is the brake pedal coming all the way back up? Look on the floor for something not usually found there. These switches are adjustable and it may be as simple as adjusting them. Have a helper look for brake lights on and shift lever unlocked while you push and release the switches with your finger. Depress the brake pedal to get it out of the way. Remember to set the park brake first. Could just be a bad switch or loose connector. Check fuses and the bulbs. Is shifter fully in Park?

Aug 20, 2011 | 2004 Mercury Mountaineer

2 Answers

2004 Volvo s60 awd t 'stuck in park'


Check your brake lights and see if they are working. The solenoid in the shifter is energized by you stepping on the brake. If your break lights do not work... your stuck in park. This can be caused by a bad brake light switch located above your brake pedal or.... a blown hazard / brake light fuse. Check them first.....

Kelly

Apr 17, 2011 | 1991 Volvo 240

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