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'94 Toyota Camry DTC: 12 Engine speed (RPM) sensor Circuit. How do I fix it?

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duane_wong
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SOURCE: dtc 12 engine speed(rpm) sensor circuit ecm toyota

The RPM sending unit circuit is not sending right data to the ecm.

Posted on Jul 22, 2010

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What is the number 12 trouble code on my 95 camry dx 2200 engine


1995 Camry 2.2L OBD1 Code 12
Trouble Code 12

Trouble Code 12 Definition:
Engine speed (RPM) sensor -circuit

Trouble Code 12 Meaning:
Wiring, RPM sensor, ECM

Diagnoses Time:
Voltage reading between Engine Control Module(ECM) and RPM sensor.

http://www.troublecodes.net/toyota/toyota-camry-cressida/

Mar 08, 2017 | 1995 Toyota Camry

2 Answers

I need the list of codes for a 1994 corolla


1.6 GLi COROLLA

DTC NUMBER TROUBLE AREA 12 clip_image001.gifRPM signal 13 clip_image002.gifclip_image002.gifRPM signal 14 IGN signal 16 ECT Signal 21 Oxygen sensor signal 22 Water temperature signal 24 Intake air temperature sensor 25 Air / Fuel ratio lean 31 Vacuum sensor signal 41 Throttle sensor 42 Vehicle speed sensor 43 Starter signal 52 Knock sensor 51 Switch COND

Sep 29, 2014 | 1994 Toyota Corolla

1 Answer

I have toyota camry 2005 its tachometer gauge is not working and over speed light is on


did you check fuse yet.
did you scan the PCM yet,
if RPM i ok in the PCM scan its, then it's OK.
no DTCs stored? any sensors on engine..
also the right scan tool can do the full TOY extended DTC check
for other DTCs, like "BCM/PCM cant talk to CLUSTER HEAD?)"

scan it first and wonder 2nd. always.

Feb 17, 2014 | 2007 Toyota Camry

1 Answer

Have a 94 toyota camry , check engine light comes on when stop at light or car sits at idle. got codes 12 , 22, am very confused !!


Code 12. RPM signal.
Problem area: Loose connection, broken rpm signal wire from distributor to ecm to rpm meter, rpm meter, distributor assembly or ecm defective.
Code 22. Water temperature signal.
Problem area: Loose connection at water temperature sensor connector, broken wire between the sensor and the ecm, defective sensor or ecm.

Aug 25, 2013 | 1994 Toyota Camry

1 Answer

1997 toyota camry how do you fix a p0340 camshaft sensor A_ bank 1 circuit malfunction


Well, a lot depends on what is causing the P0340 Diagnostic Test Code (DTC) to set.

The Camshaft Position Sensor (CMP) is a pick-up coil mounted in the outer corner of the left cylinder head just below the valve cover (assuming your Camry is equipped with a V-6...you didn't say)
a one tooth signal plate is mounted to the outer camshaft. DTC P0340 sets when there is no signal recieved from the sensor by the Engine Control Module (ECM) either during engine cranking or engine running.
Possible causes are:
> Open or short circuit in CMP sensor circuit
> Faulty CMP sensor
> Defective starter
> Damaged cam signal plate
> Broken timing belt
> Internal ECM problem
Proper diagnosis required.

Jun 09, 2012 | 1997 Toyota Camry

1 Answer

I recieved Code 12 from diagnosis


For 83-86 Camry, 87 corolla, 84-87 pickups and 4-runner: Code 12 = knock sensor or circuit (distributor or circuit on Cressida, Supra, and Celica 3S-GE)

87-90 Camry, all other models 88-90: Code 12 = Rpm signal/no NE or G signal to ECU within several seconds after engine is cranked.

All models from 1991 on: Code 12 = Rpm signal No "Ne" signal to the ECM within several seconds after the engine is cranked. No "G" signal to the ECM two times in Succession when engine speed is between 500 rpm and 4000 rpm.

Feb 08, 2011 | Toyota 4Runner Cars & Trucks

1 Answer

Dtc 12 engine speed(rpm) sensor circuit ecm toyota


The RPM sending unit circuit is not sending right data to the ecm.

Jul 22, 2010 | 1995 Toyota Camry

2 Answers

My 2004 toyota has a engine code PO793. what is


This indicates a DTC Intermediate Shaft Speed Sensor "A" problem. Below are Possible Causes:
Open or short in transmission revolution sensor NC (speed sensor NC) circuit
  • Transmission revolution sensor NC (speed sensor NC)
  • ECM


Apr 27, 2010 | 2004 Toyota Camry

1 Answer

Sencers on 1995 toyota vienta


12 ) is engine speed R.P.M. sensor circuit
52 ) is knock sensor circuit
54 ) is turbocharger intercooler control - coolant too low
hope this answers your question and remember to rat all solutions you get, thanx.

Oct 31, 2008 | 1995 Toyota Camry

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