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C1276 Delivered torque signal circuit - 1998 Chevrolet Corvette

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2005 Buick Lasabre 3.8 engine. Engine light stays on,had it checked,code C1276 came up.In layman terms what can the problem be? Thanks


C1277
Requested Torque Signal Circuit Malfunction
EBCM
DTC C1277 or P0856 in Antilock Brake System

The electronic brake control module (EBCM) and the powertrain control module (PCM) simultaneously control the traction control. The PCM reduces the amount of torque supplied to the drive wheels by retarding spark timing and selectively turning OFF fuel injectors. The EBCM actively applies the brakes to the front wheels in order to reduce torque.
The EBCM sends a requested torque message via a pulse width modulated (PWM) signal to the PCM. The duty cycle of the signal is used to determine how much engine torque the EBCM is requesting the PCM to deliver. Normal values are between 10-90 percent duty cycle. The signal should be at 90 percent when traction control is not active and at lower values during traction control activations. The PCM supplies a pull up voltage of 5 volts that the EBCM switches to ground to create the signal.
The PCM sends a delivered torque message via a PWM signal to the EBCM. The duty cycle of the signal is used to determine how much engine torque the PCM is delivering. Normal values are between 10-90 percent duty cycle. The signal should be at low values, around 10 percent, at idle and higher values under driving conditions. The EBCM supplies a pull up voltage of 12 volts that the PCM switches to ground to create the signal.
When certain PCM DTCs are set, the PCM will not be able to perform the torque reduction portion of traction control. A serial data message is sent to the EBCM indicating that traction control is not allowed.

Conditions for Setting the DTC
C1276
One of the following conditions exists:
• The EBCM detects that delivered torque signal is out of the valid range.
• The EBCM does not receive the delivered torque signal.

Diagnostic Aids
The following conditions can cause this concern:
• An open in the delivered torque circuit
• A short to ground or voltage in the delivered torque circuit
• A wiring problem, terminal corrosion, or poor connection in the delivered torque circuit
• A communication frequency problem
• A communication duty cycle problem
• The EBCM is not receiving information from the PCM.
• Loose or corroded EBCM ground or PCM ground

Install a scan tool.
Start the engine.
With a scan tool, observe the Delivered Torque parameter in the DRP/ABS/TCS data list.
Does the scan tool display the specified value?

May 07, 2018 | Buick Cars & Trucks

1 Answer

I have a 2003 Cadillac cts getting codes p1795 p1780 p1779 p2176 what can be possible problems to fix them?


code p 2176 refers to throttle actuator control(TAC) system--idle position not learned ===causes basic setting not carried out
code p 1795 is CAN bus--throttle body position
code p 1780 is park/neutral position (PNP) switch circuit engine torque signal circuit
code p 1779 is engine torque delivered to TCM signal
go google and type in cadillac fault codes and find a site that has all the codes listed

Oct 03, 2016 | 2003 Cadillac CTS

1 Answer

I need help asap 2003 Expedition code p0171 and code p0712 i have and idea of the 1st code but whats the secound code i really need help i dont want to take it to a shop where there going to charge me alot...


P0700 Transmission Control System

P0701 Transmission Control System Range/Performance

P0702 Transmission Control System -Electrical

P0703 Torque Converter/Brake Switch B Circuit

P0704 Clutch Pedal Position Switch -Circuit Malfunction

P0705 Transmission Range Sensor/Switch Circuit Malfunction (PRNDL Input)

P0706 Transmission Range Sensor/Switch Circuit Range/Performance

P0707 Transmission Range Sensor/Switch Circuit Low Input

P0708 Transmission Range Sensor/Switch Circuit High Input

P0709 Transmission Range Sensor/Switch Circuit intermittent

P0710 Transmission Fluid Temperature Sensor Circuit

P0711 Transmission Fluid Temperature Sensor Circuit Range/Performance

P0712 Transmission Fluid Temperature Sensor Circuit Low Input

P0713 Transmission Fluid Temperature Sensor Circuit High Input

P0714 Transmission Fluid Temperature Sensor Circuit Intermittent

P0715 Input/Turbine Speed Sensor Circuit

P0716 input/Turbine Speed Sensor Circuit Range/Performance

P0717 Input/Turbine Speed Sensor Circuit No Signal

P0718 Input/Turbine Speed Sensor Circuit Intermittent

P0719 Torque Converter/Brake Switch B Circuit Low

P0720 Output Shaft Speed Sensor Circuit

P0721 Output Shaft Speed Sensor Circuit Range/Performance

P0722 Output Shaft Speed Sensor Circuit No Signal

P0723 Output Shaft Speed Sensor Circuit Intermittent

P0724 Torque Converter/Brake Switch B Circuit High

P0725 Engine RPM Input Circuit

P0726 Engine RPM Input Circuit Range/Performance

P0727 Engine RPM Input Circuit No Signal

P0728 Engine RPM Input Circuit Intermittent

P0729 Gear 6 Incorrect Ratio

P0730 Incorrect Gear Ratio

P0731 Gear 1 Incorrect Ratio

P0732 Gear 2 Incorrect Ratio

P0733 Gear 3 Incorrect Ratio

P0734 Gear 4 Incorrect Ratio

P0735 Gear 5 Incorrect Ratio

P0736 Reverse Incorrect Ratio

P0737 TCM Engine Speed Output Circuit

P0738 TCM Engine Speed Output Circuit Low

P0739 TCM Engine Speed Output Circuit High

P0740 Torque Converter Clutch Solenoid Circuit

P0741 Torque Converter Clutch Solenoid Circuit Performance or Stuck Off

P0742 Torque Converter Clutch Solenoid Circuit Stuck On
P0743 Torque Converter Clutch Solenoid Circuit Electrical
Now i dont know a lot about automatics especially modern ones with all this fancy electronics thats used nowdays but i think its a fault with the temperature sensor for the gearbox.But where its located and what it looks like i have no idea it could even be mounted inside the gearbox .Sorry not a very good answer from a mechanic but?? very few of our europeon cars come with auto transmission .Evan when i do know whats wrong i cannot buy the parts for the gearbox as only re-con boxes supplied by the dealer so best advice is to try a specialist in auto box repairs only .PS some of my best students when i used to teach mechanics many moons ago were the girls so no excuses like iam only a girl please

Apr 22, 2013 | Cars & Trucks

2 Answers

Codes p1571 and p1689 coming up and my t/c light is on and want go off


Google the OBD Codes

2003 GMC Yukon OBD Code P1571 & P1689

Mar 27, 2013 | 2003 GMC Yukon

1 Answer

Reduced power ilumnated service engine soon & service wrench lights on


Hi there:
Sound like a electrical problem there...


DTC P1779 - Engine Torque Delivered to TCM Signal
Engine torque signal below lower limit delivered to TCM. I've read these occur when there is a communication problem between ECM and TCM (Transmission Control Module).

DTC P1791 - Transmission Control Module LoopThe P1779 and P1791 codes set as a result of the other DTC (P0128). When the ECM sets certain trouble codes, these codes will set in the TCM (Transmission Control Module). The TCM will also increase tranmission pressures, which results in the harsh shifting.


DTC P0123 - Throttle/Pedal Position Sensor/Switch "A" Circuit HighTP sensor signal circuit is shorted to sensor ground. TP sensor signal circuit is open (except 1996-1998 models). TP sensor VREF circuit is open between sensor and PCM. TP sensor is damaged or it failed (it may be shorted).


DTC P0222 - Throttle/Pedal Position Sensor/Switch "B" Circuit LowThe Throttle control module contains two throttle position (TP) sensors with a common 5 volt supply, a common ground, and two independent signal circuits that vary resistance according to changes in throttle plate position. The ECM measures the signal voltage from each TP sensor, which is a reduced value of the ECM 5 volt reference. As the throttle plate opens from 0% throttle to wide open throttle, the voltage on the TP sensor 1 signal increases from 0.6 (+/-0.2) volts to 4.3 (+/-0.2) volts, while the voltage on the TP sensor 2 signal decreases from 4.4 (+/-0.2) volts to 0.76 (+/-0.2) volts.

If both P0122 and P0222 are set, circuit 486 may be either open or shorted to ground.

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.

Jun 21, 2012 | 2000 Saturn LW

1 Answer

Saturn lw2 stuck in limp mode


Hi there:DTC P1779 - Engine Torque Delivered to TCM Signal
Engine torque signal below lower limit delivered to TCM. I've read these occur when there is a communication problem between ECM and TCM (Transmission Control Module).
DTC P1791 - Transmission Control Module LoopThe P1779 and P1791 codes set as a result of the other DTC (P0128). When the ECM sets certain trouble codes, these codes will set in the TCM (Transmission Control Module). The TCM will also increase tranmission pressures, which results in the harsh shifting.


DTC P0123 - Throttle/Pedal Position Sensor/Switch "A" Circuit HighTP sensor signal circuit is shorted to sensor ground. TP sensor signal circuit is open (except 1996-1998 models). TP sensor VREF circuit is open between sensor and PCM. TP sensor is damaged or it failed (it may be shorted).


DTC P0222 - Throttle/Pedal Position Sensor/Switch "B" Circuit LowThe Throttle control module contains two throttle position (TP) sensors with a common 5 volt supply, a common ground, and two independent signal circuits that vary resistance according to changes in throttle plate position. The ECM measures the signal voltage from each TP sensor, which is a reduced value of the ECM 5 volt reference. As the throttle plate opens from 0% throttle to wide open throttle, the voltage on the TP sensor 1 signal increases from 0.6 (+/-0.2) volts to 4.3 (+/-0.2) volts, while the voltage on the TP sensor 2 signal decreases from 4.4 (+/-0.2) volts to 0.76 (+/-0.2) volts.

If both P0122 and P0222 are set, circuit 486 may be either open or shorted to ground.

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.

Jun 21, 2012 | Saturn L-Series Cars & Trucks

1 Answer

I have a 203 caddilac cts,and codes #1779 1795 1780 po700, i would like to know what the codes are.


po700 Transmission Control Module Requested Malfunction Indicator Lamp Illumination, p1779Engine Torque Delivered To Transmission Control Module, Signal p1780 Engine Torque Reduction Signal Circuit p1795 Controller Area Network Bus Throttle Body Position

Sep 18, 2011 | Cadillac CTS Coupe Cars & Trucks

1 Answer

C1276 code <traction controle> light is on,


The C1276 Is An Either/Or Type Repair. You Have To Verifiy The Wiring Going Into The EBCM (ABS Unit) & Make Sure All ECM (Engine Computer) & EBCM Ground Connections Are Clen (Remove Paint & Rust) & Tight (Apply Dielectric Grease). If The Code Returns Then Yo Have To Replace One Of The Above Components - BUT Make Sure All The Wiring Is Good First. A Good Shop Or Dealership Can Test The System To Help Isolate The Problm.

Dec 11, 2010 | 2003 Cadillac CTS

1 Answer

Engine code TSC 1276 on a 1997 cadillac seville sts what does this code mean?


Using the Cadillac on-board diagnostic display you'll also see "IP" for the IPC instrument panel, "AC" for the air conditioning module, "TC" for traction control, "RS" for the road suspension system, "SD" for the air bags, "PZ" for the body control module, "CC" for the cell phone and "RF" for the integrated radio.

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C1276 Delivered Torque Signal Circuit Malfunction

Check your Trasnmission for any wrong solenoids or Torque Converter.

Jun 04, 2010 | 1997 Cadillac Seville

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