Question about 2003 Chevrolet Corvette

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2003 Chevy Corvette gets error code U1240,and P1571, I sent in the ABS/TCS module in for repair, which it was repaired and I still get a "No communication" error when I do the Diagonostic test on the DIC, please let me know what I can do to repair this problem, I'm working on this car for a carshop so I have knowledge of what I'm doing but not where exactly to look for this error, I tried checking all the wires for any breaks, I don't see any.

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A u code means no communication. Either there is a loose ground wire. (you will need to retrieve wire schematic and check all ground locations in engine compartment and near computer. The abs module may be faulty if all grounds are ok.

Posted on Jul 23, 2009

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Posted on Jan 02, 2017

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How do I disengage the ABS in 1992 Chevy Cavalier


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Whenever this warning light or any other stays on in the dash it is indicating that the systems control module (or the system sensor in the case of lights like low oil pressure, door open indicators etc.) has detected a fault, it then disables the system (this applies to ABS,TCS, TCM, SRS, TPMS, MIL, CEL and BCM faults and others) as long as the light is on. You must now have the dealer hook up a special electronic diagnostic tool and "scan" the system for the fault code that is stored for the problem(s)

Legend of Abbreviations. ABS Anti-lock brake system. TCS Traction control system, TCM Transmission control module, SRS Supplemental restraint system, BCM Body control module. TPMS Tire Pressure Monitor System, MIL Malfunction Indicator Lamp, CEL Check Engine Light.

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1 Answer

Reduce power engine


Whenever this warning light or any other stays on in the dash it is indicating that the systems control module (or the system sensor in the case of lights like low oil pressure, door open indicators etc.) has detected a fault, it then disables the system (this applies to ABS,TCS, TCM, SRS and BCM faults) as long as the light is on. You must now have the dealer hook up a special electronic diagnostic tool and "scan" the system for the fault code that is stored for the problem(s)

Legend of Abbreviations. ABS Antilock brake system.TCS Traction control system, TCM Transmission control module, SRS Supplemental restraint system, BCM Body control module

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In my Volvo truck the TCS light is on all the time how to turn of


Hi there:
TCS is used to control wheel spin by utilizing the ABS system, I suggest scanning the module in order to know what fault codes stored there.



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1 Answer

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Two seperate problems. I would say you have a bad wheel sensor. A trip to a local big chain parts store will tell you. They will run a diagnostic and pull the code for free. Hope this helps...

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1 Answer

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The C1214 error is related to the electronic brake traction control module (EBTCM) BPMV pump motor relay contact circuit open. Check the 40A ABS Maxifuse in the underhood electrical center. if blown change it, clear the DTC and if it blows again check for a short in the 1642 line or internal short in the BPMV.
When an ABS/TCS operation is required, the EBTCM activates the pump motor relay and battery power is provided to the pump motor. DTC errors are either H (history) or C (current) I usually clear the history and see if it sets again later.
sebring1962@yahoo.com

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