Question about 2006 Nissan Xterra
There is only one brake switch. The other at the brake pedal is for cruise control. You will have to access the shift solenoid and check for power and ground at the solenoid when the brake switch is activated. If power and ground ok, I would suspect shift lock solenoid. Usually if brake switch is the problem the brake lights may not work
Posted on Apr 12, 2015
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Posted on Jan 02, 2017
its the brake switch....... i bet you dont have any brake lights......... its a switch by the brake pedal 14mm wrench measure the distance on the old switch on the threads good luck
Posted on Sep 17, 2008
ANY CODES PRESENT?ENGINE LIGHT ON?YOU MAY HAVE AN INPUT OR OUTPUT SENSOR DROPPING OUT..ALSO SOME DIRT MAY HAVE ENTERED TRANSMISSION WHEN SOLENOID PACK WAS CHANGED..MAY HAVE WENT INTO SMALL FILTER SCREENS OF SOLENOID PACK WHEN ENGINE WAS STARTED,CUTTING OFF FLUID FLOW TO SOLENOIDS..HAVE SEEN THIS RECENTLY AFTER A SOLENOID PACK REPLACEMENT
Posted on Jul 19, 2009
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Oct 15, 2016 | 2007 Cadillac SRX
The IPC detects a loss of serial data communications with the ECM. 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 automatic transmission shift lock control switch
With the ignition in the ON position, voltage is supplied to automatic transmission shift lock control switch. Voltage flows through the normally closed contacts of the automatic transmission shift lock control 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 causing the transmission shift lever to be physically locked in the PARK position. When the brake pedal is pressed the contacts in the automatic transmission shift lock control switch open, de-energizing the automatic transmission shift lock control solenoid. This allows the shift lever to be move out of the PARK position.
The transmission range (TR) switch is part of the park/neutral position (PNP) and backup lamp switch assembly, which is externally mounted on the transmission manual shaft. The TR switch contains four internal switches that indicate the transmission gear range selector lever position. The PCM supplies ignition voltage to each switch circuit. As the gear range selector lever is moved, the state of each switch may change, causing the circuit to open or close. An open circuit or switch indicates a high voltage signal. A closed circuit or switch indicates a low voltage signal. The PCM detects the selected gear range by deciphering the combination of the voltage signals. The PCM compares the actual voltage combination of the switch signals to a TR switch combination chart stored in memory.
You need a Tech2 scan tool to diagnose this problem ! possible range sensor !
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Do the brake light work? No brake lights and it won't shift out of park. Check your fuses and check for loose wires. Check your brake light switch. If that has failed, you won't be able to get out of park. The other one if the shift lock solenoid which is in the shifter assembly. The brake shift interlock switch prevents the car being shifted from park unless the brake pedal is depressed. Try to apply power/ground to the proper wires & see if it will activate.. If it does, then the problem is between the brake light switch & that solenoid. Could be the wires or the switch.Make sure the shifter cable is still held down in place at the shifter assembly & under the hood. It is the interlock switch that you hear/feel clicking.It is for the prior generation but may still apply.
Good Luck and hopefully you soon will be on the road again...;-)
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