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  1. 2010 Chevy Silverado Engine Light Codes: Troubleshooting Guide

    Those are not fault codes. You need to access 7E8 and 7E9 to retrieve the fault code, which will begin with a P. For instance, P0722 or P0171. Alternatively, you may need to use a different code reader. …

  2. 2013 GMC Terrain Rough Idling Engine Light Code 7E8 - JustAnswer

    Customer: My code reader is showing a 7E8 code, and the engine light just came on today with rough idling. Mechanic's Assistant: Has your vehicle stalled? Has anyone run a diagnostic test to retrieve …

  3. Toyota Prius 2008 Check Engine and VSC Lights On - JustAnswer

    7e8 7eb and 7ea codes with red triangle and check engine and vsc lights. Stays on. 2008 prius. Just tried to reset and

  4. $7E8 and $7E9 Stored Codes - Jeep Wrangler Forum

    Jun 12, 2017 · The codes $7E8 and $7E9 typically represent the addresses of the PCM (Powertrain Control Module) and TCM (Transmission Control Module) respectively. They often appear as 'stored' …

  5. Troubleshooting Codes 7E8, eA & 7EB: Expert Fix Guide - JustAnswer

    Codes 7E8 and 7EB are generic OBD-II response IDs from the engine control module (ECM) and transmission control module (TCM), not fault codes themselves. The code 'EA' is likely a misread or …

  6. Chevy 7E8 Engine Code: Q&A for Chevy Code 7E8, Engine Code

    The 7E8 code refers to the Engine Control Module (ECM) communication bus. Symptoms include check engine light and erratic sensor readings. Start by inspecting the CAN bus wiring and connectors for …

  7. Got error codes 7E8 (engine) and 7E9 (a/t low signal)

    Apr 28, 2020 · a few feet later, engine and transmission icons light up on my dash. This was new. (YIKE!) my ODB II scanner says codes 7E8 and 7E9. 7E8: Engine, 'no code stored in module' 7E9: …

  8. Just read an error code on the engine $7EA, 7EE, 7E8 from my OBD II ...

    2006 Chevy Duramax Diesel Engine Light and OBD-II Codes Explained Duramax diesel owners often face engine light triggers due to sensor faults or emission system glitches. When the check engine …

  9. Error code 7e8 and 7e9 on 2012 JK - Jeep Wrangler Forum

    Jul 25, 2025 · $7E8 = is a generic code for the ECM (engine control module), sometimes referred to as PCM (powertrain control module), depending on the manufacturer. Jeep uses PCM nomenclature. …

  10. Q&A: Troubleshooting $7e8 & $7e9 Engine Codes - JustAnswer

    2010 F150 Check Engine Light: Diagnosing Trouble Codes 7E8 and 7E9 F150 often shows generic OBD-II codes and intermittent check engine light without specific sensor data. Codes 7E8 and 7E9 …