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Dash readout gave following codes: PC1406; TC0035;TC0037;RF2560and PCM?

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Do the RPM gauge supose to move up on dash when cranking?

The tach readout is controlled by software in the Instrument cluster (IC) based on the values sent from the VCM/PCM. The readout on your scanner should show the correct rpm values (120 to 240 is wrong). Therefore, if the engine is running normally, the computer is probably not sending the correct values to the IC, but the crank sensor is OK.

Jan 01, 2017 | GMC Cars & Trucks

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1995 dodge Dakota code 55? Code 12?

Code 12 means that the battery input to the PCM was disconnected within the last 50 key cycles (this is a normal condition).
Code 55 means that you have reached the end of the codes. This is also normal

So if you have a 12, 55 code readout, you basically have no error codes stored.

Here is a link that lists the code sand what they mean.

OBD 1 Codes DodgeForum com

Oct 22, 2015 | Dodge Cars & Trucks

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I have a 2001 Lincoln ls 3.9l v8 I have a crank but no start issue. When key on security light on dash flashes rapidly for about 1 minute then pause one flash pause six flashes.then it repeats one six...

Code 16 is no communication between the PAT and PCM.
This code can show up as a B1681 or HEC code 9681 on a dash test.
They all mean the same thing but from different detection points.
Cause is an open, ground or cross in the circuit between the PATS and PCM.

This is an anti-theft feature. The key you use has a radio chip (transponder) so that only the keys programmed to that vehicle will start it. If the key isn't present, then it won't start. Something could have gotten in there and chewed on the wires or the connectors could be loose. It is also possible the module is damaged (not as likely) but in either case, without the right dianostic equipment, this isn't something that you can fix yourself. Even if you swap out the module yourself, it still has to be programmed to operate with the car. The PATS module is built into the instrument cluster on this car. I suspect you may also has 'dashes' (-------) where your odometer readout should be.

Dec 30, 2014 | Cars & Trucks

2 Answers

2001 hyundai optima V6 auto shifts late. Has the following codes: p1505 u0d00 p1507 p0123 p0449 p0118. I believe I have a communications problem with the tcm and the problem is also giving the pcm bad...

TCM and PCM, might be in the center dash under the radio area, but from the codes you gave, I would say it's more than likely a grounding problem causing communication problems.

Apr 05, 2017 | 2001 Kia Optima

1 Answer

1260 code wont start

P1260 - This, basically is indicating that a theft has occurred, and the engine has been disabled.If the engine stalled, during travel, and the code was pulled after the stall, this will indicate the following:

1.A loss of power, or ground wire to the PCM
2.A Faulty PCM power relay
3.A Faulty EEC power diode
4.A Faulty VERF signal.

Passive Anti-Theft System (PATS) communicates PCM through instrument cluster to enable or disable vehicle's engine. Within one second after engine start, PCM must receive an enable signal from instrument cluster or engine will be disabled. Along with enable signals, instrument cluster and PCM share messages that confirm security codes shared during initial installation. This shared security data makes instrument cluster and PCM a matched pair, so neither will operate in another vehicle. When system is functioning properly and ignition switch is turned to RUN or START position, THEFT indicator light will turn on for 3 seconds, then turn off. Vehicle will be enabled to start and run. If a problem exists in PATS, THEFT indicator light will stay on or flash continuously.

NOTE_ The best action is to clear the code, by using a diagnostic CPU. Plug the CPU into your in car port, under the dash. Follow the instruction on the CPU display to clear the code. if the engine dose not start after the code is cleared, this will indicate that there are some issues with the PCM, or PATS

Nov 11, 2009 | 1999 Ford Taurus

1 Answer

Digital dash readout is blank

you need to replace the dash cluster, their failure is common at about 10 years of age

Apr 12, 2009 | 1997 Cadillac DeVille

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