Question about 2004 Dodge Ram

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Electronic throttle control, cruise control

When driving, the electronic throttle control light comes on and the engine bogs down, but when I let off the throttle it goes away. It does this quite often and also the cruise control does not work. I was wondering if they are related and does one have to work so the other does? Also my check engine light is on and I have checked everything under the hood and the truck runs fine other than the problem stated. Does this mean I have bad sensors in the exhast line?

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  • robprice Oct 22, 2008

    I have a 2004 Lincoln LS, during acceleration it goes into a Fail Safe mode for ETC (electronic throttle control). How can I solve this problem?

  • Anonymous Mar 13, 2014

    2008 dodge ram diesel2500four wheel drive had check engine light came on with the electronic throttle control module light checked it on a reader and it came up electronic crankshaft positioned module we replaced part now truck won't start

  • Anonymous Mar 21, 2014

    the light comes after the truck has been running about 10 min.

  • Anonymous Mar 27, 2014

    could this be a sensor or solenoid of some sort?

  • Anonymous Mar 30, 2014

    My cruise control shuts off after driving a short distance (10 Mi.) and will not re-engage. light goes off and will not come back on until I shut the engine down and re-start.

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You need to have the codes read. The electronic throttle relies on an APP sensor and a TPS sensor. A problem with either one of these will cause this. Also, the cruise would be affected by this, as there is no cruise servo, it's controlled be the electronic throttle body.

Posted on Oct 19, 2008

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Flash computer 2010 chevy equinox Abs, traction control, ck engine lights all come on. Vehicle goes into "safe" mode Drives at about 5 mph until I turn off & restart after 5 mins


Probably caused by the electronic throttle control . How many miles on the vehicle ? The gas pedal has position sensors that the PCM - engine computer uses to know how much to open the throttle plate .
Drive by Wire Function and diagnostics by Wells
What engine ?
The throttle actuator control (TAC) system is used to improve emissions, fuel economy, and driveability. The TAC system eliminates the mechanical link between the accelerator pedal and the throttle plate. The TAC system eliminates the need for a cruise control module and idle air control motor. The following is a list of TAC system components:
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How do I troubleshoot the cruise control of a 2003 Alero?


It's probably a problem with cruise control module , located under the hood in engine compartment . Or a bad connection somewhere . Do you know how to do electrical testing ? Is the air bag light lit on the instrument cluster ?

Could have DTC'S - diagnostic trouble code's stored .
DTC P1554
The powertrain control module (PCM) inhibits cruise control operation when certain conditions are not appropriate for cruise control operation. The PCM removes the ground from the cruise control inhibit signal circuit in order to disengage cruise control operation.
DTC P1585
Output driver modules (ODMs) are used by the powertrain control module (PCM) in order to turn on many of the current driven devices that are needed to control various engine and transaxle functions. DTC P1558 set indicates that an improper voltage level has been detected on the signal circuit which controls the cruise control inhibit circuit.
Action Taken When the DTC Sets
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Cruise control is a speed control system that maintains a desired vehicle speed under normal driving conditions. However, steep grades may cause variations in the selected speeds. The electronic cruise control system has the capability to CRUISE, COAST, RESUME SPEED, ACCELERATE, and TAP-UP or TAP-DOWN.
The main parts of the cruise control system are:
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Throttle Actuator Control (TAC) System Description
The throttle actuator control (TAC) system delivers improved throttle response and greater reliability and eliminates the need for mechanical cable. The TAC system performs the following functions:
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1 Answer

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Check cruise control cable is oiled adequately in cable sleeve .

check vacuum connector is ok in engine bay also ?

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