AutoCodes
 
OBDII Code List
 
P2104 LINCOLN

P2104 LINCOLN - Throttle Actuator Control System Forced Idle

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3   
Comments  |  Add Comment

Possible causes

  • Faulty Throttle Actuator Control (TAC)
  • Throttle Actuator Control (TAC) harness is open or shorted
  • Throttle Actuator Control (TAC) circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)

Tech notes

The P2104 code is an informational code only and may set in combination with a number of other codes which are causing the Failure Mode Effects Management (FMEM). If other codes are present, diagnose other codes first.





User Submitted Video

When is the code detected?

The P2104 code is an informational code only and may set in combination with a number of other codes which are causing the Failure Mode Effects Management (FMEM).

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P2104 Lincoln Description

The electronic Throttle Actuator Control (TAC) is a DC motor controlled by the Powertrain Control Module (PCM). There are 2 designs for the TAC, parallel and inline. The parallel design has the motor under the bore parallel to the plate shaft. The motor housing is integrated into the main housing. The inline design has a separate motor housing. An internal spring is used in both designs to return the throttle plate to a default position. The default position is typically a throttle angle of 7 to 8 degrees from the hard stop angle. The closed throttle plate hard stop prevents the throttle from binding in the bore. This hard stop setting is not adjustable and is set to result in less airflow than the minimum engine airflow required at idle. The P2104 code is set when the Throttle Actuator Control (TAC) system is in the Failure Mode Effects Management (FMEM) mode of forced idle.
OBDII Code P2104 Lincoln - Throttle Actuator Control System Forced Idle - AutoCodes.com

Need more help?

Get the P2104 Lincoln code diagnosed by a professional: Find a repair shop in your area

Related Information

P2104 LINCOLN Comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P2104 Lincoln code? Have you replaced any parts?
Any information is appreciated. Thanks
Top ⇧