Oh Boy! I have a few "Codes"
Thread Starter
Burning Brakes
Joined: Jan 2007
Posts: 1,152
Likes: 3
From: Hawaii
Oh Boy! I have a few "Codes"
Yesterday morning I dissconnected the bridge from the trottle body and the mass air flow sensor (along with the related electrical & hose connections) to clean both. The MAFS was ok so I left it be. I "sprayed" some Sea Foam into the throttle body with the engine running until it died. Connected everything back up and when I later started the car I got a "check engine" warning icon.
I checked and got the following codes: P1571 ASR desired torque; U1064 (loss of communication w/BCM) & U1096 (loss of communication w/IPC). I rechecked all my electrical & hose connections, cleared out the codes and went for a short (25 mile) ride. Upon my return home I checked and the codes had returned.
To compound matters, on my way home, as I was making a downhill decreasing radius turn I downshifted from D to 3rd and into 2nd (I have an A4) and my "service traction control" warning icon came on. Now the following code also shows up as well: C1277 (requested torque signal CKT malfunction).
Short of taking it to the dealer (UGH !!!) what should I be looking for?
Mahalo!
I checked and got the following codes: P1571 ASR desired torque; U1064 (loss of communication w/BCM) & U1096 (loss of communication w/IPC). I rechecked all my electrical & hose connections, cleared out the codes and went for a short (25 mile) ride. Upon my return home I checked and the codes had returned.
To compound matters, on my way home, as I was making a downhill decreasing radius turn I downshifted from D to 3rd and into 2nd (I have an A4) and my "service traction control" warning icon came on. Now the following code also shows up as well: C1277 (requested torque signal CKT malfunction).
Short of taking it to the dealer (UGH !!!) what should I be looking for?
Mahalo!
Pro
Joined: Nov 2002
Posts: 717
Likes: 11
From: Pleasanton CA
Yesterday morning I dissconnected the bridge from the trottle body and the mass air flow sensor (along with the related electrical & hose connections) to clean both. The MAFS was ok so I left it be. I "sprayed" some Sea Foam into the throttle body with the engine running until it died. Connected everything back up and when I later started the car I got a "check engine" warning icon.
I checked and got the following codes: P1571 ASR desired torque; U1064 (loss of communication w/BCM) & U1096 (loss of communication w/IPC). I rechecked all my electrical & hose connections, cleared out the codes and went for a short (25 mile) ride. Upon my return home I checked and the codes had returned.
To compound matters, on my way home, as I was making a downhill decreasing radius turn I downshifted from D to 3rd and into 2nd (I have an A4) and my "service traction control" warning icon came on. Now the following code also shows up as well: C1277 (requested torque signal CKT malfunction).
Short of taking it to the dealer (UGH !!!) what should I be looking for?
Mahalo!
I checked and got the following codes: P1571 ASR desired torque; U1064 (loss of communication w/BCM) & U1096 (loss of communication w/IPC). I rechecked all my electrical & hose connections, cleared out the codes and went for a short (25 mile) ride. Upon my return home I checked and the codes had returned.
To compound matters, on my way home, as I was making a downhill decreasing radius turn I downshifted from D to 3rd and into 2nd (I have an A4) and my "service traction control" warning icon came on. Now the following code also shows up as well: C1277 (requested torque signal CKT malfunction).
Short of taking it to the dealer (UGH !!!) what should I be looking for?
Mahalo!
Safety Car
Joined: Jan 2001
Posts: 4,386
Likes: 689
From: Boise ID
The U1064 and U1096 (and often U1016) are always there. No biggie.
DIC Onboard Diagnostics Show DTCs U1016, U1064 and U1096 in History #PI00043 - (Jun 19, 2002)
DIC Onboard Diagnostics Show DTCs U1016, U1064 and U1096 in History
When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.
Condition/Concern:
DTCs U1016, U1064 and U1096 may be present when scrolling through the onboard diagnostics via the instrument cluster Driver Information Center (DIC).
Recommendation/Instructions:
This is a normal software function as long as the DTCs have a history status upon ignition cycling. No repair attempts should be made.
DTC P1571 Traction Control Torque Request Circuit
Circuit Description
The PCM supplies 5 volts on the desired torque circuit to the electronic brake and traction control module (EBTCM). The EBTCM toggles this 5 volt signal to a ground in order to produce a duty cycle signal. The signal is proportional to the amount of engine output torque reduction requested by the EBTCM. The EBTCM supplies this signal when it detects a wheel slip. In order to reduce engine output torque, the PCM reduces the amount of spark advance and in some cases, the PCM disables a number of fuel injectors. This diagnostic tests for a Desired Torque signal failure. If the PCM does not receive the Desired torque signal, this DTC sets.
Conditions for Running the DTC
• The traction control has not failed.
• The engine speed is greater than 500 RPM for 20 seconds.
Conditions for Setting the DTC
The desired torque signal is not received by the PCM for 3 seconds.
Action Taken When the DTC Sets
• The powertrain control module (PCM) stores the DTC information into memory when the diagnostic runs and fails.
• The malfunction indicator lamp (MIL) will not illuminate.
• The PCM records the operating conditions at the time the diagnostic fails. The PCM stores this information in the Failure Records.
Conditions for Clearing the MIL/DTC
• A last test failed, or the current DTC, clears when the diagnostic runs and does not fail.
• A history DTC clears after 40 consecutive warm-up cycles, if failures are not reported by this or any other emission related diagnostic.
DTC C1277 Requested Torque Signal Circuit Malfunction
Circuit Description
The PCM monitors various parameters and will not allow Traction Control/Active Handling (if equipped with RPO JL4) operation if any parameter falls beyond a predetermined value.
Conditions for Setting the DTC
A malfunction has been detected by the PCM. The PCM then causes TCS/Active Handling shutdown until the malfunction has been corrected.
Action Taken When the DTC Sets
This is a temporary operational malfunction.
TCS/Active Handling (if equipped with RPO JL4) are disabled.
• Indicators that turn on: Car Icon (TCS indicator)
• Messages displayed on the DIC: Service Traction System Service Active HNDLG (if equipped with RPO JL4)
Conditions for Clearing the DTC
• Condition for DTC is no longer present and scan tool clear DTC function is used.
• Fifty ignition cycles have passed with no DTCs detected.
Diagnostic Aids
This code is for information only. It indicates there are no problems in the ABS/TCS/Active Handling system, is used as an aid to the technician.
DIC Onboard Diagnostics Show DTCs U1016, U1064 and U1096 in History #PI00043 - (Jun 19, 2002)
DIC Onboard Diagnostics Show DTCs U1016, U1064 and U1096 in History
When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.
Condition/Concern:
DTCs U1016, U1064 and U1096 may be present when scrolling through the onboard diagnostics via the instrument cluster Driver Information Center (DIC).
Recommendation/Instructions:
This is a normal software function as long as the DTCs have a history status upon ignition cycling. No repair attempts should be made.
DTC P1571 Traction Control Torque Request Circuit
Circuit Description
The PCM supplies 5 volts on the desired torque circuit to the electronic brake and traction control module (EBTCM). The EBTCM toggles this 5 volt signal to a ground in order to produce a duty cycle signal. The signal is proportional to the amount of engine output torque reduction requested by the EBTCM. The EBTCM supplies this signal when it detects a wheel slip. In order to reduce engine output torque, the PCM reduces the amount of spark advance and in some cases, the PCM disables a number of fuel injectors. This diagnostic tests for a Desired Torque signal failure. If the PCM does not receive the Desired torque signal, this DTC sets.
Conditions for Running the DTC
• The traction control has not failed.
• The engine speed is greater than 500 RPM for 20 seconds.
Conditions for Setting the DTC
The desired torque signal is not received by the PCM for 3 seconds.
Action Taken When the DTC Sets
• The powertrain control module (PCM) stores the DTC information into memory when the diagnostic runs and fails.
• The malfunction indicator lamp (MIL) will not illuminate.
• The PCM records the operating conditions at the time the diagnostic fails. The PCM stores this information in the Failure Records.
Conditions for Clearing the MIL/DTC
• A last test failed, or the current DTC, clears when the diagnostic runs and does not fail.
• A history DTC clears after 40 consecutive warm-up cycles, if failures are not reported by this or any other emission related diagnostic.
DTC C1277 Requested Torque Signal Circuit Malfunction
Circuit Description
The PCM monitors various parameters and will not allow Traction Control/Active Handling (if equipped with RPO JL4) operation if any parameter falls beyond a predetermined value.
Conditions for Setting the DTC
A malfunction has been detected by the PCM. The PCM then causes TCS/Active Handling shutdown until the malfunction has been corrected.
Action Taken When the DTC Sets
This is a temporary operational malfunction.
TCS/Active Handling (if equipped with RPO JL4) are disabled.
• Indicators that turn on: Car Icon (TCS indicator)
• Messages displayed on the DIC: Service Traction System Service Active HNDLG (if equipped with RPO JL4)
Conditions for Clearing the DTC
• Condition for DTC is no longer present and scan tool clear DTC function is used.
• Fifty ignition cycles have passed with no DTCs detected.
Diagnostic Aids
This code is for information only. It indicates there are no problems in the ABS/TCS/Active Handling system, is used as an aid to the technician.
Melting Slicks
Joined: Sep 2002
Posts: 2,329
Likes: 0
mine likes to do the ABS/traction control codes after continous driving for about 100 miles or so -don't know why -an electronic guru is very helpful on the Forum says to clean the ground sites and to check the connectors for corrosion. These things are very touchy. The real problematic ones are the ones that do not "reset".
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Your reading the DTC's using the DIC built in diagnostic computer correct??????
If you are,,,,RESET ALL THE DTCs!!!!!!!!!!! Once there all RESET,,,,drive the car and see what new ones come back. When they do come back (if they do), list them and make sure you include the suffix letter H or C
Please reset all the listed DTC's while your in MANUAL DIAGNOSTICS MODE using the ( RESET BUTTON held in until they all clear in that module then go on to the next module) ,,,read and post the new ones once the old ones are clear.
BC
If you are,,,,RESET ALL THE DTCs!!!!!!!!!!! Once there all RESET,,,,drive the car and see what new ones come back. When they do come back (if they do), list them and make sure you include the suffix letter H or C
Please reset all the listed DTC's while your in MANUAL DIAGNOSTICS MODE using the ( RESET BUTTON held in until they all clear in that module then go on to the next module) ,,,read and post the new ones once the old ones are clear.
BC
Safety Car
Joined: Aug 2007
Posts: 4,506
Likes: 0
From: This is not a Song, It's an Outburst: Or, The Establishment Blues; Sixto Diaz Rodriguez
I know there"s someplace here where codes are listed(?), but I just can't seem to find it, so, I don't think this is serious, but I'd still like to find out about it. Mine says; BO-RFA (remote function actuation) 3-Codes...Any help, appreciated...
Race Director
Joined: Jan 2006
Posts: 10,554
Likes: 33
From: Not on either liberal coast.
Safety Car
Joined: Aug 2007
Posts: 4,506
Likes: 0
From: This is not a Song, It's an Outburst: Or, The Establishment Blues; Sixto Diaz Rodriguez
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Race Director
Joined: Jan 2006
Posts: 10,554
Likes: 33
From: Not on either liberal coast.
Thread Starter
Burning Brakes
Joined: Jan 2007
Posts: 1,152
Likes: 3
From: Hawaii
The U1064 and U1096 (and often U1016) are always there. No biggie.
DIC Onboard Diagnostics Show DTCs U1016, U1064 and U1096 in History #PI00043 - (Jun 19, 2002)
DIC Onboard Diagnostics Show DTCs U1016, U1064 and U1096 in History
When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.
Condition/Concern:
DTCs U1016, U1064 and U1096 may be present when scrolling through the onboard diagnostics via the instrument cluster Driver Information Center (DIC).
Recommendation/Instructions:
This is a normal software function as long as the DTCs have a history status upon ignition cycling. No repair attempts should be made.
DTC P1571 Traction Control Torque Request Circuit
Circuit Description
The PCM supplies 5 volts on the desired torque circuit to the electronic brake and traction control module (EBTCM). The EBTCM toggles this 5 volt signal to a ground in order to produce a duty cycle signal. The signal is proportional to the amount of engine output torque reduction requested by the EBTCM. The EBTCM supplies this signal when it detects a wheel slip. In order to reduce engine output torque, the PCM reduces the amount of spark advance and in some cases, the PCM disables a number of fuel injectors. This diagnostic tests for a Desired Torque signal failure. If the PCM does not receive the Desired torque signal, this DTC sets.
Conditions for Running the DTC
• The traction control has not failed.
• The engine speed is greater than 500 RPM for 20 seconds.
Conditions for Setting the DTC
The desired torque signal is not received by the PCM for 3 seconds.
Action Taken When the DTC Sets
• The powertrain control module (PCM) stores the DTC information into memory when the diagnostic runs and fails.
• The malfunction indicator lamp (MIL) will not illuminate.
• The PCM records the operating conditions at the time the diagnostic fails. The PCM stores this information in the Failure Records.
Conditions for Clearing the MIL/DTC
• A last test failed, or the current DTC, clears when the diagnostic runs and does not fail.
• A history DTC clears after 40 consecutive warm-up cycles, if failures are not reported by this or any other emission related diagnostic.
DTC C1277 Requested Torque Signal Circuit Malfunction
Circuit Description
The PCM monitors various parameters and will not allow Traction Control/Active Handling (if equipped with RPO JL4) operation if any parameter falls beyond a predetermined value.
Conditions for Setting the DTC
A malfunction has been detected by the PCM. The PCM then causes TCS/Active Handling shutdown until the malfunction has been corrected.
Action Taken When the DTC Sets
This is a temporary operational malfunction.
TCS/Active Handling (if equipped with RPO JL4) are disabled.
• Indicators that turn on: Car Icon (TCS indicator)
• Messages displayed on the DIC: Service Traction System Service Active HNDLG (if equipped with RPO JL4)
Conditions for Clearing the DTC
• Condition for DTC is no longer present and scan tool clear DTC function is used.
• Fifty ignition cycles have passed with no DTCs detected.
Diagnostic Aids
This code is for information only. It indicates there are no problems in the ABS/TCS/Active Handling system, is used as an aid to the technician.
DIC Onboard Diagnostics Show DTCs U1016, U1064 and U1096 in History #PI00043 - (Jun 19, 2002)
DIC Onboard Diagnostics Show DTCs U1016, U1064 and U1096 in History
When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.
Condition/Concern:
DTCs U1016, U1064 and U1096 may be present when scrolling through the onboard diagnostics via the instrument cluster Driver Information Center (DIC).
Recommendation/Instructions:
This is a normal software function as long as the DTCs have a history status upon ignition cycling. No repair attempts should be made.
DTC P1571 Traction Control Torque Request Circuit
Circuit Description
The PCM supplies 5 volts on the desired torque circuit to the electronic brake and traction control module (EBTCM). The EBTCM toggles this 5 volt signal to a ground in order to produce a duty cycle signal. The signal is proportional to the amount of engine output torque reduction requested by the EBTCM. The EBTCM supplies this signal when it detects a wheel slip. In order to reduce engine output torque, the PCM reduces the amount of spark advance and in some cases, the PCM disables a number of fuel injectors. This diagnostic tests for a Desired Torque signal failure. If the PCM does not receive the Desired torque signal, this DTC sets.
Conditions for Running the DTC
• The traction control has not failed.
• The engine speed is greater than 500 RPM for 20 seconds.
Conditions for Setting the DTC
The desired torque signal is not received by the PCM for 3 seconds.
Action Taken When the DTC Sets
• The powertrain control module (PCM) stores the DTC information into memory when the diagnostic runs and fails.
• The malfunction indicator lamp (MIL) will not illuminate.
• The PCM records the operating conditions at the time the diagnostic fails. The PCM stores this information in the Failure Records.
Conditions for Clearing the MIL/DTC
• A last test failed, or the current DTC, clears when the diagnostic runs and does not fail.
• A history DTC clears after 40 consecutive warm-up cycles, if failures are not reported by this or any other emission related diagnostic.
DTC C1277 Requested Torque Signal Circuit Malfunction
Circuit Description
The PCM monitors various parameters and will not allow Traction Control/Active Handling (if equipped with RPO JL4) operation if any parameter falls beyond a predetermined value.
Conditions for Setting the DTC
A malfunction has been detected by the PCM. The PCM then causes TCS/Active Handling shutdown until the malfunction has been corrected.
Action Taken When the DTC Sets
This is a temporary operational malfunction.
TCS/Active Handling (if equipped with RPO JL4) are disabled.
• Indicators that turn on: Car Icon (TCS indicator)
• Messages displayed on the DIC: Service Traction System Service Active HNDLG (if equipped with RPO JL4)
Conditions for Clearing the DTC
• Condition for DTC is no longer present and scan tool clear DTC function is used.
• Fifty ignition cycles have passed with no DTCs detected.
Diagnostic Aids
This code is for information only. It indicates there are no problems in the ABS/TCS/Active Handling system, is used as an aid to the technician.
MAHALO! (thank you in Hawaiian). Some very akamai (smart) and helpful people here. I went to the dealer this morning and asked them if they could explain the codes and what was needed to fix or clear them. They said they would get back to me after lunch. It's 1:30 here and no word yet (guess they take long lunches...) Anyway you beet them to the ounch.
Thread Starter
Burning Brakes
Joined: Jan 2007
Posts: 1,152
Likes: 3
From: Hawaii
Your reading the DTC's using the DIC built in diagnostic computer correct??????
If you are,,,,RESET ALL THE DTCs!!!!!!!!!!! Once there all RESET,,,,drive the car and see what new ones come back. When they do come back (if they do), list them and make sure you include the suffix letter H or C
Please reset all the listed DTC's while your in MANUAL DIAGNOSTICS MODE using the ( RESET BUTTON held in until they all clear in that module then go on to the next module) ,,,read and post the new ones once the old ones are clear.
BC
If you are,,,,RESET ALL THE DTCs!!!!!!!!!!! Once there all RESET,,,,drive the car and see what new ones come back. When they do come back (if they do), list them and make sure you include the suffix letter H or C
Please reset all the listed DTC's while your in MANUAL DIAGNOSTICS MODE using the ( RESET BUTTON held in until they all clear in that module then go on to the next module) ,,,read and post the new ones once the old ones are clear.
BC
Car runs ok. Just the fact that the codes are there has me bugged!
Safety Car
Joined: Aug 2007
Posts: 4,506
Likes: 0
From: This is not a Song, It's an Outburst: Or, The Establishment Blues; Sixto Diaz Rodriguez
Thanks again. Doesn’t seem to be a problem, I believe it has something to do with taking the stock radio out with the security device, new system and adding a Viper Alarm System. Just noticed it when I went into the DIC checking things out. So all's well. 
