My alternator went out on my 2012 Dodge Charger. I paid to have it fixed to find out a recall has been put out in Nov 2014. 3 weeks later I am having Electronic throttle Control issues according to my error codes P2012, 2010 and 2018. I had that replaced and now being told my PCM is shot. Whatever the root cause of this issue, my question is....
Can the alternator failure and malfunction be responsible for this since the electronincs and computer systems are so sensitive? I have drive it 1000 miles since Alternator replacement.
Thoughts or experience would be appreciated.
I am sorry you are experiencing issues with your vehicle. If you paid for a repair now under recall a reimbursement can be requested from Chrysler. The recall letter provides the process. I assume you have the 3.6L engine. What is your mileage and did the dealer diagnose the PCM and ETC issue? The PCM is covered under Federal Emissions Warranty of 8yrs/80,000.
In regards to your error codes which I show as P2110-Electronic Throttle Control-forced limited RPM; P2112-Electronic Throttle Control-unable to open; P2118-Electronic Throttle Control Motor Circuit for the Electronic Throttle Control Motor, the ETC is controlled by the Powertrain Control Module. Here is information on P2110 from the Service Manual that may shed some light on the issue.
Theory of Operation
The Electronic Throttle Control (ETC) Motor is controlled by the Powertrain Control Module (PCM). The DC motor located in the Throttle Body drives the throttle blade. In order to decrease idle speed, along with spark and fuel delivery changes the PCM commands the throttle closed reducing air flow into the engine and the idle speed decreases. In order to increase idle speed, the PCM commands the throttle plate open allowing more air to pass the throttle plate.
P2110-ELECTRONIC THROTTLE CONTROL - FORCED LIMITED RPM
•This diagnostic runs with the engine running.
•When the Powertrain Control Module (PCM) requests to limit engine speed and ETC PWM is too high for 1.2 seconds and before P2118 sets.
•Fault sets on the first trip that the diagnostic fails.
•The ETC light will start to flash on the first trip that the diagnostic fails.
•If the ETC PWM stays above 80%, P2110 will set first , and if the fault persists P2118 will follow. Root cause is common for both faults
Possible causes are the following:
INTERMITTENT LOSS OF CONNECTION AT THE THROTTLE BODY HARNESS CONNECTOR
COKING OR DEBRIS BLOCKING THE THROTTLE BODY PLATE
THROTTLE BODY PLATE BINDING INSIDE THE BORE
ETC MOTOR/THROTTLE BODY
POWERTRAIN CONTROL MODULE (PCM)
Please feel free to PM me if further assistance is needed.