What does code P1153 mean on Isuzu vehicles?
The oxygen sensor on bank 2 sensor 1 is not switching adequately during operation.
OBD-II Code Isuzu
P1153 — Isuzu — HO2S Insufficient Switching Bank 2 Sensor 1
The oxygen sensor on bank 2 sensor 1 is not switching adequately during operation.
Common symptoms
- Check engine light on
Possible causes
- Faulty oxygen sensor
- sensor contamination
Initial recommendation
Replace the upstream oxygen sensor (B2S1).
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
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