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Engine light stays on was told it was p1680 - 2004 GMC Envoy

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How to fix obd2 trouble code P1680 on a 2004 Isuzu ascender 4.2l eng


code p 0300 refers to random/ multiple misfires detected ===causes --spark plug/s--HT lead/s--injector/s --ignition coil/s--low compression --wiring
most likely low fuel pressure and injector problems
code p 0442 refers to evaporative emission (EVAP) system ---small leak detected ===causes hose connection/s--intake leak-- EVAP canister ---EVAP canister purge valve
it also refers to --large leak detected ===causes ---petrol cap loose ,/missing---mechanical fault ---EVAP pressure sensor
code p 0455 refers to EVAP ---large leak detected --all those stated plus EVAP canister purge valve
code p1680 refers to electric throttle control (ETC) monitor ---processor fault ===causes --wiring--ECT monitor

Sep 30, 2016 | Isuzu Cars & Trucks

1 Answer

Engine code p1680


Code 1680 means there is a problem in the engine computer, the computer does not recognize the vehicle as being correct.
Computers are programmed to a specific year make and model.
The internal memory chip may also have failed.

Jul 23, 2013 | 2004 Buick Rainier

1 Answer

What is a p1680 mean on a 04 Envoy? there is alos some hesitation while ideling at a stop light and when u have the heater on high


Code P1680 refers to the accelerator pedal sensor, there may be a bad connection or the sensor itself is dirty and needs replacement.
The hesitation could be cause by a dirty throttle body, needs to be cleaned thoroughly front and back.

Jan 16, 2013 | 2004 GMC Envoy

1 Answer

Whats is o1680?


You have to reprogramm the ECM. Here is a bulletin for this problem.
Subject:
Service Engine Soon Light On, P1680 (Reprogram or Replace PCM)

Models:
2004 Buick Rainier
2004 Chevrolet Trailblazer
2004 GMC Envoy
2004 Oldsmobile Bravada
with 4.2L Engine (VIN S - RPO LL8)

Some customers may comment on the Service Engine Soon Light coming on. Upon investigation, the technician may find a P1680 diagnostic trouble codeCheck the resistance of the accelerator pedal position sensors using the procedure in the appropriate Service Information for DTC P1680.

If the resistance of the accelerator pedal position sensor is within the specifications shown in the Service Information and the vehicle was built prior to the following VIN breakpoints, then reprogram the PCM with the latest calibration.

If the resistance of the accelerator pedal position sensor is within the specifications shown in the Service Information and the vehicle was built after the following VIN breakpoints, then replace the PCM. If the resistance of the accelerator pedal position sensor is outside the specifications shown in the Service Information, then continue with the diagnostics for DTC P1680.

VIN Breakpoints
• Vehicles built at Oklahoma City Assembly Plant - 46192755
• Vehicles built at Moraine Assembly Plant - 42315833

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Jul 18, 2012 | 2004 GMC Envoy

1 Answer

Whats is p1680 manfacorer control


You have to reprogramm the ECM. Here is a bulletin for this problem.
Subject:
Service Engine Soon Light On, P1680 (Reprogram or Replace PCM)

Models:
2004 Buick Rainier
2004 Chevrolet Trailblazer
2004 GMC Envoy
2004 Oldsmobile Bravada
with 4.2L Engine (VIN S - RPO LL8)

Some customers may comment on the Service Engine Soon Light coming on. Upon investigation, the technician may find a P1680 diagnostic trouble codeCheck the resistance of the accelerator pedal position sensors using the procedure in the appropriate Service Information for DTC P1680.

If the resistance of the accelerator pedal position sensor is within the specifications shown in the Service Information and the vehicle was built prior to the following VIN breakpoints, then reprogram the PCM with the latest calibration.

If the resistance of the accelerator pedal position sensor is within the specifications shown in the Service Information and the vehicle was built after the following VIN breakpoints, then replace the PCM. If the resistance of the accelerator pedal position sensor is outside the specifications shown in the Service Information, then continue with the diagnostics for DTC P1680.

VIN Breakpoints
• Vehicles built at Oklahoma City Assembly Plant - 46192755
• Vehicles built at Moraine Assembly Plant - 42315833

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Jul 18, 2012 | 2004 GMC Envoy

2 Answers

Looking for OBD codes chevy trailblazer 2004. codes p0128,p1680


The P0128 is your thermostat. Your engine isn't getting up to temperature, is probably stuck open.

P1680 has to do with your pedal position sensor. Either way, your PCM either needs to be recalibrated by the dealer OR replaced. This depends on where your VIN # falls on the list of the technical service bulletin that is out there.

Mar 08, 2011 | 2004 Chevrolet TrailBlazer

1 Answer

Error code 1680


Chevrolet OBD Fault Codes
DTC P1680 - Driver 5 (ECU malfunction)

This is any internal ECU problem (ECU = ECM = PCM device); check other details HERE; keep in mind that its possible that you have to reprogramm the ECU.

Here is a bulletin for this problem.Subject: Service Engine Soon Light On, P1680 (Reprogram or Replace PCM)

Models:
2004 Buick Rainier
2004 Chevrolet Trailblazer
2004 GMC Envoy
2004 Oldsmobile Bravada with 4.2L Engine (VIN S - RPO LL8)

Some customers may comment on the Service Engine Soon Light coming on. Upon investigation, the technician may find a P1680 diagnostic trouble code Check the resistance of the accelerator pedal position sensors using the procedure in the appropriate Service Information for DTC P1680.

If the resistance of the accelerator pedal position sensor is within the specifications shown in the Service Information and the vehicle was built prior to the following VIN breakpoints, then reprogram the PCM with the latest calibration.

If the resistance of the accelerator pedal position sensor is within the specifications shown in the Service Information and the vehicle was built after the following VIN breakpoints, then replace the PCM. If the resistance of the accelerator pedal position sensor is outside the specifications shown in the Service Information, then continue with the diagnostics for DTC P1680.

VIN Breakpoints
• Vehicles built at Oklahoma City Assembly Plant - 46192755
• Vehicles built at Moraine Assembly Plant - 42315833

Hope this help

Aug 03, 2010 | 2004 Chevrolet TrailBlazer

1 Answer

Code p1680 manufacture control and auxiliary input and output problem


You have to reprogramm the ECM. Here is a bulletin for this problem.
Subject:
Service Engine Soon Light On, P1680 (Reprogram or Replace PCM)

Models:
2004 Buick Rainier
2004 Chevrolet Trailblazer
2004 GMC Envoy
2004 Oldsmobile Bravada
with 4.2L Engine (VIN S - RPO LL8)

Some customers may comment on the Service Engine Soon Light coming on. Upon investigation, the technician may find a P1680 diagnostic trouble codeCheck the resistance of the accelerator pedal position sensors using the procedure in the appropriate Service Information for DTC P1680.

If the resistance of the accelerator pedal position sensor is within the specifications shown in the Service Information and the vehicle was built prior to the following VIN breakpoints, then reprogram the PCM with the latest calibration.

If the resistance of the accelerator pedal position sensor is within the specifications shown in the Service Information and the vehicle was built after the following VIN breakpoints, then replace the PCM. If the resistance of the accelerator pedal position sensor is outside the specifications shown in the Service Information, then continue with the diagnostics for DTC P1680.

VIN Breakpoints
• Vehicles built at Oklahoma City Assembly Plant - 46192755
• Vehicles built at Moraine Assembly Plant - 42315833

Hope help with this (remember rated this).

Jul 09, 2010 | 2004 GMC Envoy

1 Answer

My engine light keeps on staying on went to the mechanic they told me i need a sensor light they told me they fixed it picked up car engine light still on shall i get my money back


definitely.normally you plug a mechanical guage in to check oil pressure,then renew the oil pressure sender unit.should fix it.

Jun 29, 2010 | 1998 Nissan Maxima

1 Answer

2004 envoy service engine light stays on. Told


Our mechanic said we need to replace the computer! The cost will be $1,000.

Feb 19, 2010 | 2004 GMC Envoy

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