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Chevy Equinox Generations Forum
4th Gen : 2025 + Current Chevy Equinox
General Chevy Equinox Discussions
P0641 Code?!
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<blockquote data-quote="Pishner03" data-source="post: 24875" data-attributes="member: 3478"><p>1.5 FWD with P0641 code?! </p><p></p><p>The P0641 code in a Chevy 2018 Equinox indicates a voltage problem in the 5-volt reference circuit of the engine control module</p><p>(ECM) or powertrain control module (PCM):</p><p></p><p>Any ideas? One minute will start and run good next time will not even start! </p><p></p><p>Replaced ECM and all Sensors on that 5 volt circuit. Still getting Map Sensor codes. </p><p></p><p>Replace Whole wiring harness???? </p><p></p><p>The car was in a wreck, December 2023. Damage to driver side front. Ran perfect for 6 months then started electric problems. I really don’t know if it could be related or not. Bought a new battery last fall. </p><p></p><p>At a loss here! Ugh!</p></blockquote><p></p>
[QUOTE="Pishner03, post: 24875, member: 3478"] 1.5 FWD with P0641 code?! The P0641 code in a Chevy 2018 Equinox indicates a voltage problem in the 5-volt reference circuit of the engine control module (ECM) or powertrain control module (PCM): Any ideas? One minute will start and run good next time will not even start! Replaced ECM and all Sensors on that 5 volt circuit. Still getting Map Sensor codes. Replace Whole wiring harness???? The car was in a wreck, December 2023. Damage to driver side front. Ran perfect for 6 months then started electric problems. I really don’t know if it could be related or not. Bought a new battery last fall. At a loss here! Ugh! [/QUOTE]
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Chevy Equinox Generations Forum
4th Gen : 2025 + Current Chevy Equinox
General Chevy Equinox Discussions
P0641 Code?!
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