Limp mode/OBD codes P2103,P2104,P0638 - LotusTalk

vdibiase · 04-10-2006, 04:08 AM

Have an '06 Elise with 1000mi that went into limp mode under normal driving condtions. Check engine light came on, turned the car off and restarted it and is driving fine. Check eng light remained on and OBD scanner detected 3 codes:
P0638 (generic for "throttle actuator control range/performance)
P2103 and P2104...which must be manufacturer specific...
My question is whether anyone knows what these 2 codes refer to...can't find these codes anywhere...including the service manual and other threads...thanks.

TimMullen · 04-10-2006, 09:45 AM

Those must be new codes for the '06 model, because they are not in the Service Manual for the '05. Even the P0638 code was listed (although that one isn't manufacturer specific and sounds like it has to do with the drive by wire throttle). Below are the manufacturer specific codes listed in the '05 Service Manual:

vdibiase · 04-10-2006, 09:50 AM

Thanks Tim, just spoke to Fox Valley and they said the codes could refer to "a number of issues"...could not be more specific...will have it checked out at the dealer...

Andrikos · 04-10-2006, 09:53 AM

Google is your friend:

vdibiase · 04-10-2006, 10:16 AM

Thanks!

TimMullen · 04-10-2006, 11:01 AM

Quote:

Originally Posted by Andrikos

Google is your friend:

Hmmm...

It was supposed to be that codes that started with P0 were generic codes, and P anything other than 0 was manufacturer specific.

But from the tables at that site (http://www.myscantool.com/dtc/), it appears that things have changed a bit. It looks like they defined additional generic codes, and now only codes that start with P1 are manufacturere specific - P2, P3, etc. seem to have generic definitions.

At least the ones listed in the '05 Service Manual do map with the P2 codes listed in the table.

Good to know that...

Thanks!

Andrikos · 04-10-2006, 11:09 AM

No problemo guys,
I forgot to list the site but Tim took care of that...

Serebo1 · 06-03-2006, 06:23 PM

Rachel's Elise ('06) threw a P2108 tonight - "Throttle Actuator Control (TAC) Module Performance." Interesting, especially in light of Steve W.'s evaluation of her car on the track. The code description seems to speak for itself, but can anyone go a bit more in depth?

Thanks

Jack · 06-03-2006, 07:56 PM

Quote:

Originally Posted by Serebo1

Rachel's Elise ('06) threw a P2108 tonight - "Throttle Actuator Control (TAC) Module Performance." Interesting, especially in light of Steve W.'s evaluation of her car on the track. The code description seems to speak for itself, but can anyone go a bit more in depth?

Thanks

Alan,

Rachel's car felt very sluggish on the 25th as well -- so the issue has been there for well over a week. I thought it was just that new car/tight engine thing, since it took my '05 Elise at least 10K miles to come into it's own. But now it sounds like her car may be having a TBW problem. Have it corrected before the Player's Run.

Rachel · 06-03-2006, 08:36 PM

I already have plans to go see Qais on Monday to get the hard top fix done. I'm sure it'll get fixed on Monday.

04-10-2006, 04:08 AM	#1 (permalink)
vdibiase Registered User Join Date: Mar 2006 Posts: 49	Limp mode/OBD codes P2103,P2104,P0638 Have an '06 Elise with 1000mi that went into limp mode under normal driving condtions. Check engine light came on, turned the car off and restarted it and is driving fine. Check eng light remained on and OBD scanner detected 3 codes: P0638 (generic for "throttle actuator control range/performance) P2103 and P2104...which must be manufacturer specific... My question is whether anyone knows what these 2 codes refer to...can't find these codes anywhere...including the service manual and other threads...thanks.

04-10-2006, 09:45 AM	#2 (permalink)
TimMullen Moderator Join Date: Jun 2003 Location: Chantilly, VA Posts: 12,058 Images: 19	Those must be new codes for the '06 model, because they are not in the Service Manual for the '05. Even the P0638 code was listed (although that one isn't manufacturer specific and sounds like it has to do with the drive by wire throttle). Below are the manufacturer specific codes listed in the '05 Service Manual: Attached Images __________________ Tim Mullen --- There is no such thing as Touring suspension or Touring wheels. I love being married. It's so great to find that one person that you want to annoy for the rest of your life. - Rita Rudner Chantilly, VA http://members.cox.net/elans4/ 05 Lotus Elise - Chrome Orange - No Touring - No LSS - No Hardtop - Lotus Driving Lights - Lotus "Chin Guards" - plain and simple. 94 Miata R Package - Black 72 Lotus Elan Sprint - Colorado Orange/Cirrus White

04-10-2006, 09:53 AM	#4 (permalink)
Andrikos Lulu ROX! Join Date: Jun 2005 Location: RanchoSahuarita.com , AZ Posts: 3,748	Google is your friend: Attached Images __________________ My daily driver is an orange plastic toaster

04-10-2006, 11:09 AM	#7 (permalink)
Andrikos Lulu ROX! Join Date: Jun 2005 Location: RanchoSahuarita.com , AZ Posts: 3,748	No problemo guys, I forgot to list the site but Tim took care of that... __________________ My daily driver is an orange plastic toaster

06-03-2006, 06:23 PM	#8 (permalink)
Serebo1 Registered User Join Date: Aug 2005 Location: Los Angeles Posts: 6,862 Images: 4	Rachel's Elise ('06) threw a P2108 tonight - "Throttle Actuator Control (TAC) Module Performance." Interesting, especially in light of Steve W.'s evaluation of her car on the track. The code description seems to speak for itself, but can anyone go a bit more in depth? Thanks __________________ Matte Black, Sport, Touring, ***** intake (TBA), RAC Mono wheels, Painted Shift knob, smoked turn signals, Alpine SPS 6.5" rear speakers, MB Quarts, JVC Nav, Starshield, LBH exhaust, Dpic perf. gauge, Custom true HID projectors, GUT wing and splitter, Mesh side pods, Sector111 harness bar and 4-point harness, Lotus Sport Ohlins double-adjustable suspension, swaybar, '06 LED tailights, Toda flywheel, Lotusport interior.

04-10-2006, 09:50 AM	#3 (permalink)
vdibiase Registered User Join Date: Mar 2006 Posts: 49	Thanks Tim, just spoke to Fox Valley and they said the codes could refer to "a number of issues"...could not be more specific...will have it checked out at the dealer...

04-10-2006, 10:16 AM	#5 (permalink)
vdibiase Registered User Join Date: Mar 2006 Posts: 49	Thanks!

06-03-2006, 08:36 PM	#10 (permalink)
Rachel Registered User Join Date: Mar 2006 Posts: 643	I already have plans to go see Qais on Monday to get the hard top fix done. I'm sure it'll get fixed on Monday.

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