3 Shops Missed It - We Found The REAL Cause of Reduced Power Mode
Автор: KOEO
Загружено: 2025-07-12
Просмотров: 4082
Customer Complaint: Recued engine power on bumps.
This 2019 Chevy Equinox had been to three different shops before landing in our hands. The issue? Random Reduced Engine Power Mode triggered by bumps in the road - but no DTCs in the engine or transmission modules.
We ran a full pre-scan and found odd codes in the ABS module and gateway (CAN Bus time out), but nothing concrete. During test drive, the scan tool suddenly showed loss of communication with the ECM-the engine computer was dropping out.
We dug into the wiring diagrams , CAN Bus layout, and power/ground circuits. After checking grounds and connections, we finally found a loose 250-amp fuse terminal in the battery fuse box. Tightened it, cleared the issue.
The takeaway: Intermittent power loss = check fusebox connections!
If you're into diagnostics, module programming, or real - world repair strategies, subscribe to Key On Engine Off for more breakdowns like this.
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