You need the dealer on this one, sorry but since the part is sold as the entire throttle assembly and it is very expensive it must be properly diagnosed. Do not just throw a new throttle body on the engine as it may not fix the problem.
SOURCE: Electronic Throttle Control light
I took my 2004 Dodge Ram 1500 5.7L Hemi to a mechanic that works from a garage at his home, recommended by a friend of mine. He removed and cleaned the throttle body and sensor(s?), then reinstalled them, and then disconnected both battery cables and held them together for 2 minutes so that the engine controller could reboot with the factory default settings, then reconnected them. I had bought a can of throttle body cleaner on my way over to his house for about $3.00. He charged me $40.00 for the job. This was done mid-February, about 10 weeks and 2500 miles ago. So far, the problem Has Not happened again, the truck has been running great!
SOURCE: electronic throttle control light comes
Take it to one of the bigger autoparts stores, they will usually scan for free, and determine what trouble code is actually present to verify problem area. The accelerator pedal position sensor is operated by a cable from pedal to APPS, then electronically from there to determine throttle plate positioning. The APPS is located under battery tray, but you can get to it over left front tire. Wait until trouble code is confirmed to determine repair.
SOURCE: Electronic Throttle Control
DTC P2106
Throttle actuator control system-forced limited power
DETECTION CONDITION
• The PCM monitors the throttle actuator control current when the ignition switch is on. If the control current is less than 8 A or more than 11 A, the PCM determines that the throttle actuator control system is under forced limited power.
Diagnostic support note
• This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction condition in the first drive cycle.
• PENDING CODE is available if the PCM detects the above malfunction condition.
• FREEZE FRAME DATA is available.
• The DTC is stored in the PCM memory.
POSSIBLE CAUSE
• Throttle actuator malfunction
• Connector or terminal malfunction
• Open circuit in wiring harness between throttle body terminal A and PCM terminal 1B
• Short to power supply in wiring harness between throttle body terminal A and PCM terminal 1B
• Short to GND in wiring harness between throttle body terminal A and PCM terminal 1B
• Open circuit in wiring harness between throttle body terminal B and PCM terminal 1C
• Short to power supply in wiring harness between throttle body terminal B and PCM terminal 1C
• Short to GND in wiring harness between throttle body terminal B and PCM terminal 1C
• PCM malfunction
and for the other one
the dealers need to reflash the powertrain module ( ETC ) ...
hope i'll not get that problem on my 04 hemi...
SOURCE: Dodge RAM 2500 4x4 Cummins 5.9l diesel: Starts
Manual states possible (probable) engine control problem and needs to be checked by dealer. The big auto parts stores will scan for free and hopefully can point you in the right direction of what needs to be addressed. If not, get back to us with that code and we'll be glad to further assist you.
The 1st thing that MUST be done is to have the electronic engine control system computer (called the "PCM") scanned for fault codes, this gives you the starting point for diagnosis od why the warning/fault light is on. You can get the scan for fault codes done for free at any Autozone or similar discount auto parts store in your area. Aamco Transmission does the scan for free as well.
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