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Professional Automotive Repair Technical Discussions for October 14, 2022 International Automotive Technicians' Network (iATN) - Members Only |
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| (Also Available: All, Asian, Chrysler, European, Ford, GM.) | ||
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Open Help Requests for GM
| Help Request | Answers | |
| 2005 Cadillac CTS 3.6L No Start, No ECM communication VIN: 1G6DP567X5 We thought we had a "typical" ECM failure on this CTS and had just repaired another 05 CTS with reman ECM a few days before this nightmare. Key on, no check engine light, no communication. Key stuck in igntion. We ran through the GM service bulletin regard... Trouble codes: U0100 (TCM lost communication withECM), U1000 (Class 2 serial data problem--in all modules) |
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| 2010 Chevrolet Equinox LT 2.4L no communication with ECM, TCM VIN: 2CNFLEEWXA Vehicle towed in, no start no crank, transmission installed at a different shop, customer was overcharged and does not want to return. Vehicle started fine at other shop, drove home and would not start next day. No communication with ECM or TCM. We can com... |
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| 1997 GMC K1500 Sierra SL 5.7L Egr VIN: 2GTEK19R6V mifsire/rich mixture codes cap,rotor,wires,plugs now new. traced to #1 & 3 cylinders as the culprits & as the egr is right between them, went old school & made a plate to essentially take it out of the picture. all codes gone & idling smooth, only code now... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2011 Cadillac SRX Premium 3.0L Parking Brakes VIN: 3GYFNFEY7B sorry about delay in closing,but been busy ,took car to dealer to be told again no sps programing required ,so pick up and double check all wires and connectors ,found that [...] wire circuit 6107 was open between module and x402,when wiggle tested it would o... |
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