P1187 Trouble Code

View P1187 obd/2 error code description and symptoms. P1187 engine photo

The Transmission Range Sensor (also referred to as the PRNDL input an/or neutral safety switch) tells the transmission control module (TCM) an the engine control module (PCM) that the transmission is in park, reverse, neutral, drive, low, 2nd, 3rd etc. It is attached directly to the manual valve of transmission, so when the shift lever is moved from park to drive, the Transmission Range Sensor communicates this critical information to the above mentioned vehicle control module systems.

Circuit High Input codes like P1187 are mostly caused by defective alternators that develop excessive voltages, although there may be other causes as well, such as short circuits that 'leak' current into a particular system from other, unrelated systems that work on higher voltages. Note that in the case of short circuits that leak power into a control circuit, there is likely to be other, seemingly unrelated trouble codes present along with the code(s) being investigated. Diagnosing a 'high input' code will always involve a thorough testing of the charging system as a first step, followed by measures to isolate the system from all other possible sources of power during resistance, continuity, and reference voltage tests.

Difficulty Level (Easy)
Level
Repair Time (45 Min.)
Time
Cost Prediction : $ 80-120

P1187 Error Code Repair Process :

If your p1187 variant selection check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system P1187 and engine control unit are in charge of monitoring a bunch of different p1187 variant selection, and if they get a reading that's a little out of whack, up pops the check engine light.

Wrench Tool P1187 is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

Common Causes of P1187

A common cause of code P1187 is the failure of P1187 Variant Selection, but there are several other possible causes as well, such as ;

P1187 code for all cars

You can view according P1187 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+P1187 Chrysler Valiant +P1187 Lincoln Mark +P1187 Abarth 1500 +P1187 Ferrari 166 +P1187 Jaguar Xf

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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