P0418 Diagnostic Trouble Code Discussion for July 2023
Secondary AIR System Pump Relay Control Circuit Malfunction (Bank 1)
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| Help Request | Posted | |
| 2008 Chevrolet Trailblazer LT 4.2L MIL Lamp on VIN: 1GNDT13S18 P0418: air pump relay A circuit. Hoping someone can help me out. I replaced the listed parts and the dtc comes right back on as soon as I start up. I cleared codes several times after driving vehicle and code does not stay off. I can operate the relays with my scanner off/on works ok.Vehi... |
July 16, 2023 |
