2001 Chevy Silverado P0161 and C0265 Codes: Causes and Diagnosis
I'm experiencing both P0161 and C0265 error codes on my 2001 Chevrolet Silverado. Has anyone else seen these two codes appear simultaneously? I'm not sure if both are critical or what components to inspect first. The P0161 code indicates a heater circuit malfunction in the HO2S-22 (Bank 2 Sensor 2) for the 5.3L V8 engine with VIN T and automatic transmission. C0260 relates to the ABS system, where the EBCM detects an internal malfunction. I'd like to know if these codes are related or if they point to separate issues that need independent troubleshooting.
P0161 (5.3L V8 VIN T Auto) indicates a heater circuit malfunction in the HO2S-22 (Bank 2 Sensor 2). C0265 refers to an ABS system issue where the EBCM detects an internal malfunction. These are separate systems—P0161 is related to the oxygen sensor heater circuit and may require checking wiring or sensor connections, while C0265 suggests a potential fault in the ABS control module that could affect braking performance.