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pcm

The security system warning light should not illuminate once the vehicle is started and you are driving. If the light does illuminate, that means there is a malfunction in the security system. Obviously, if this problem started immediately after you...

The repair information from Chrysler says an OEM level scan tool must be used to update the mileage and VIN number in the replacement PCM. If this is not done, a diagnostic trouble code (DTC) will be set. You'll want...

The Service Manual does not "require" any specific intervention (re-learn procedure). On this vehicle, the PCM will, by default, update itself to new values, just as you idle and drive the vehicle, if such new values are required. Even if...

PCM's are usually replaced at the end of a "process of elimination". That is, with most engine management control failures, there are a whole host of common causes that are evaluated first. Once that long list of most common causes...

Reverse polarity, at the battery, in a 12 volt electrical system on a car can cause a variety of effects including damaging the alternator, diodes and the numerous microprocessors on a vehicle such as those in the powertrain control module...

Diagnostic Trouble Code (DTC) P1273 sets if lean operation is detected. There are quite a few causes but if you have already replaced the oxygen sensor, the ECM has to be cleared of stored "self-learned" mixture ratios, and the DTC...

The PCM will need to be programmed if you have theft system that is factory installed. The PCM will need to be programmed to communicate with the theft module.

The engine control module (ECM) controls all the engine functions to keep it running correctly monitoring all the sensors of the engine. The power train control module (PCM) will include multiple control modules in one case called a PCM. The...

Hi there, the short answer to your question is no . A PCM with a P0601 (https://www.yourmechanic.com/article/-p0601-obd-ii-trouble-code-internal-control-module-memory-check-sum-error-by-spencer-clayton) (which is a memory module error in the PCM) cannot reliably retrieve codes for the codes you list (P0118 (https://www.yourmechanic.com/article/p0118-obd-ii-trouble-code-engine-coolant-temperature-ect-sensor-circuit-high-open-problem-by-jay-safford) - coolant temp...

Hello and thank you for contacting YourMechanic. PCM's typically fail (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-engine-control-module-ecm) for one of two reasons: voltage overloads (often due to a short in a solenoid or actuator circuit) or environmental factors (corrosion, thermal stress or vibration). If water gets...

Hello, thanks for writing in about your Ford F-150. I'm curious if you got the new PCM from the dealer. You should check if have the exact same part number on it. If the part numbers do not match and...

OBD-II PCMs have circuit protection to take account of the possibility of shorted actuators (fuel injectors, coil drivers) and other electrical overloads. Statistically, the PCM is probably the most reliable component on the entire vehicle. If the cause of the...

There could be a wiring issue with the vehicle speed sensor from the computer to the speed sensor pigtail. If the wiring is good, then the PCM may not correctly configured for the actual tire size on the vehicle. If...

If the problems started after you replaced the PCM, and the first PCM did not have any known issues, you might want to begin your diagnostic by re-installing the original PCM. Seems like you did a lot of work on...

I looked up the two applications. Those two engines use completely different castings for both the heads and the block and the flywheel (flex plate) is different as well which will make it incompatible with your transmission. If you search...

If the two posts are indeed specified for jump starting, then the answer is "yes" you can safely install a 12 volt car battery there at the remote posts while you remove and replace the permanent car battery. Electrically, all...

The 2002 engine used Head Cast # G6 and Block Cast # 4G64. The 2006 used Head Cast # G69M and Block Cast # 4G69. There are other differences between the two years as well. The principal problem is your...

The PATS system cannot be bypassed. You are required to have a coded PATS ignition key in order for the computer to turn on the spark and fuel to the engine. If you do not have a PATS programmed key...

Hi there. There are several possible causes for the lightening bolt to remain on. The PCM (powertrain control module) has recognized an electrical fault in the ETC (electronic throttle control) system and disables the starter relay, creating a no crank...

Assuming the ECM is still working enough to report problems, getting any problem codes out of the system with a code reader is your best clue at this point - whether the Check Engine Light (https://www.yourmechanic.com/services/check-engine-light-is-on-inspection) is illuminated or not....