HO2S Insufficient Switching Bank 2 Sensor 1
Table of contents
P1153 PONTIAC Possible Causes
- Faulty Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
- Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 harness is open or shorted
- Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 circuit poor electrical connection
How do I fix code P1153 PONTIAC?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P1153 PONTIAC code
The cost of diagnosing the P1153 PONTIAC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected
A DTC P1153 sets when the Powertrain Control Module (PCM) determines that the HO2S did not switch enough times.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1153 PONTIAC Description
The Powertrain Control Module (PCM) monitors the Heated Oxygen Sensor (HO2S) activity for 100 seconds. During this monitor period the PCM counts the number of times that the HO2S switches from rich to lean and lean to rich.
A lean to rich switch is determined when the HO2S voltage changes from less than 300 mV to greater than 600 mV. A rich to lean switch is determined when the HO2S voltage changes from more than 600 mV to less than 300 mV.