P1676:What is Trouble code p1676-Signal line failure?:DTC:

P1676:What is Trouble code p1676-Signal line failure? - 車QF - Yahoo!ブログ

• 2009/8/9(日) 午前 10:16

P1676:What is Trouble code p1676-Signal line failure?

Trouble Code P1676 means:TCM/ A/T FI data line circuit

http://wiki.answers.com/Q/What_is_Trouble_code_p1676-Signal_line_failure



http://www.acuraworld.com/forums/f87/what-p1676-code-fptdr-signail-fail-60453/

What is P1676 code - FPTDR Signail Fail 
Anyone know what the FPTDR is? 
I have a P1676 code in my 99TL - FPTDR Signail Fail. 
I also recently got ABS & TCS lights illuminated simultaneously while I was driving. 
The P1676 might have happened at the same time.

Thanks,
-Groucho

Mine is still under an extended warranty and I'm taking it in tomorrow. 
I'm not sure if the ABS/TCS is related or not. 
I originally thought my engine was missing, but there's no missfire indicated by the computer. 
If I'm driving at normal highway speeds & I let off the gas to slow down about 5 mph then apply about 1/4 throttle it feels like the engine misses for maybe 5 seconds. 
I reported it to the dealer about 4 months ago, but they couldn't find anything. 
Hopefully now with the code they'll be able to figure something out.


kencatt 
Registered User

Join Date: Aug 2005
Location: Rhode Ilsland
Age: 47
Posts: 1 


Car 1: 3.2TL
Car 2: 2.3CL
Car 3: 88 RX-7 Convert Autozone scanned my 2001 3.2TL and found same P1676 code. 
Interested to know if anyone found fix? 

I think the code definition is "Traction Control System FI Data Line No Signal"



groucho 
Registered User



Join Date: Apr 2004
Posts: 38 My local dealer called me today. 
He said their service manual directs to clear the code, run the car for a minute and see if the code returns. 
It didn't return in the 60 seconds he looked for it, so he said there's nothing wrong with my car...despite getting ABS/TCS lights twice in the last week and the hesitation/missing problems I have. Aparently the car didn't exhibit any missing/hesitation when they drove it around the block. 
"Could not duplicate" means I get stuck with the $105 diagnostic fee. Great.


hondacuraworld 
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Join Date: Jul 2002
Location: Buffalo, NY USA
Age: 37
Posts: 2,827 
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Car 1: 2004 Ford Mustang From Acura:

DTC P1676: FPTDR Signal Line Malfunction 


'99 model
Reset the PCM.

Start the engine and wait 10 seconds.


Is DTC P1676 indicated? YES - Go to step 3.

NO - Intermittent failure system is OK at this time. Check for poor connections or loose wires at the ABS/TCS control unit and the PCM.


Step 3- Turn the ignition switch OFF.

Disconnect the PCM connector E (12P) and the ABS/TCS control unit 16P connector.

Check for continuity between body gound and PCM connector terminal E1.


Is there continuity? 
YES - Repair short in the wire between the ABS/TCS control unit and the PCM (E1).n

NO - Go to step 6.

Check for continuity between ABS/TCS control unit 16P connector terminal No. 1 and PCM connector terminal E1.

Reconnect the PCM connector E (12P).

Connect PCM connector terminals E1 and C28 with a jumper wire.

Reset the PCM.

Start the engine and wait 60 seconds.


Is DTC P1678 indicated? YES - Substitute a known-good ABS/TCS control unit and recheck. If the symptom/indication goes away, replace the original ABS/TCS control unit.n

NO - Substitute a known-good PCM and recheck. If the symptom/indication goes away, replace the original PCM.n





Is there continuity? YES - Go to step 7.

NO - Repair open in the wire between the ABS/TCS control unit and the PCM (E1).n



Basically, it's an ABS/TCS control unit failure......



groucho 
Registered User



Join Date: Apr 2004
Posts: 38 Thanks for the great info! Since it's an intermittent failure and no bad pins or connectors were found, is there anything I need to do to keep a full failure from happening in the future? My car has 96k on it with a 100k AcuraCare warranty. I'd really hate to have them say it's ok now only to have it fail right after my warranty expires.

Thanks again Tim - awesome service!

-Groucho

コメント（6）

  

hondacuraworld 
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Join Date: Jul 2002
Location: Buffalo, NY USA
Age: 37
Posts: 2,827 
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Car 1: 2004 Ford Mustang Since you have an Acuracare warranty, bring it in and let them sort it out. Might as well do it now, since it's still covered

2009/8/9(日) 午前 10:17返信する

  

groucho 
Registered User



Join Date: Apr 2004
Posts: 38 I brought it in yesterday and they just reset the code & sent me on my way. I was told today that the hesitating my car is doing is perfectly normal...even though it didn't used to do it and no other car I've ever driven (including other TLs) do it.

2009/8/9(日) 午前 10:19返信する

  

A customer was at the dealer the same time I was with a tranny acting up in her RL (also under AcuraCare warranty). They "couldn't replicate" it either and didn't want to replace her transmission...she told me that when she asked they didn't even test drive her car. Amazing.

Tim- My wife & I are looking to buy a new TL, but we're not about to give our local dealer any money because their service department is so bad. Is there any way to swing a deal through your dealership?

Thanks again.

2009/8/9(日) 午前 10:19返信する

  

hondacuraworld 
Acuraworld Preferred Vendor

Intermittent ones can be the tough ones to diagnose because unless it's occurring right when the technician is working on the car, you may or may not be able to create or replicate the problem. Hard codes are easily traced, not so with intermittent failures. Not at least examining it or test driving the vehicle, is bad service IMO.

2009/8/9(日) 午前 10:21返信する

  

hondacuraworld 
Acuraworld Preferred Vendor

Nothing ventured nothing gained......drop me an email with what you need to hondacuraworld@aol.com and I'll do my best

2009/8/9(日) 午前 10:22返信する

  

P1676 FPTDR Signal Failure (Acura, Honda)
http://www.breguet.tv/service/001/power/001a60.html

2009/8/9(日) 午前 11:02返信する

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