Wrench light, limp mode, P060B, P2104, P2110

Jake's Ride

New Member
Jul 22, 2020
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1
San Diego
Hi everyone! I just signed up for this issue... I have a Mustang 2005 V6 which has been sitting around for a while, so it needed a jump start. Battery is fine again, but the car stays in limp mode. Here is what I found out so far

Turning key:
Check engine light, battery light, wrench symbol is on

Turning on engine:
Check engine light, wrench symbol is on

Engine is running in limp mode. Pressing the pedal does not rev the car, no response at all, engine is just idling away at low revs.

I scanned the codes and got
P060B - Internal Control Module A/D Processing Performance
P2104 - Throttle Actuator Control System Forced Idle
P2110 - Throttle Actuator Control System Forced Limited RPM

I have a simple scanner and could not get more details. Freeze frame is attached, if that helps.

What I've checked so far:
Mass air flow sensor: appears to work, pulling it shuts the engine off
Checked all fuses: okay
Checked PCM power relays and diodes: okay
Drained capacitors, cleared codes and tried to recalibrate: no change
Throttle butterflies make some movements when turning the key (self check I guess)
Butterflies do not open when pressing gas pedal, no movement at all
Throttle sensor always shows 2.5 Volts, manually turning the butterflies with a screw driver does not change voltage (top wire on the TPS, not sure if it's the right one though)

I'm hesitant to just replace the throttle body, since there seems to be a disconnect from the pedal (sensor? wiring?), which does not result in any throttle movement. Other posts reported P2112, P2106 and P2135, but I'm not getting these codes. A look at https://www.justanswer.com/ford/d2v4f-codes-p060b-p2104-p2110-replaced-throttle-body.html (Ford Explorer) points to a defective PCM, but a local service station told me that PCMs in older Mustangs are rare to fail.

I thought about checking the pedal position sensor and connection to the PCM, and the connection from the PCM to the throttle motor, but do not know how to do that. I'm close to taking it to the dealer... I'm not a car guy by any stretch, but I can check things visually and measure voltages. Any ideas and feedback would be much appreciated.
 

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Jake's Ride

New Member
Jul 22, 2020
6
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San Diego
Hm, I ordered the wrong part. I did not realize that the 2005 version is a heated TB with extra connectors.
I installed the new TB anyway, just to see if the problem would go away but it didn't. TB does a self check, but no reponse when pressing the pedal. No change really... Lights are still on, stuck in limp mode. Not sure if I'll try to replace the ECM. I might take it to the dealer now. Thanks anyways, guys.
 

cbxer55

Active Member
Jan 25, 2020
215
43
38
59
Oklahoma
Sure. Lucky if you have one with a cable...
I have a 98 Ranger and a 04 Lightning, both with cables. When I bought this Mustang, I didn't know it had throttle by wire. If I had at the beginning, it might have stopped me from buying it. I don't even like the way it responds to throttle from a stand still as much as I do cable throttles. Mine almost seems all-or-nothing. Can't takeoff and just putt away from a sign or light. And press it a little further, ZOOM!! Doesn't seem like it'll be good on slick winter roads at all.
 

Jake's Ride

New Member
Jul 22, 2020
6
0
1
San Diego
Well, drive by wire is the thing now... what can you do. It's alright as long as it works. Mine is just a V6 and tends to react a little slowly. It drives like a "ship", but that's fine with me.
 

cbxer55

Active Member
Jan 25, 2020
215
43
38
59
Oklahoma
Well, drive by wire is the thing now... what can you do. It's alright as long as it works. Mine is just a V6 and tends to react a little slowly. It drives like a "ship", but that's fine with me.
Mine is a V-6 as well. With an aftermarket intake and a custom exhaust. Mine runs pretty swell for a V-6. It just doesn't drive the same as my V-6 Ranger. I guess the 07 Mustang will be the last throttle by wire I buy, because I will never buy another.
 
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