P1133 CADILLAC - HO2S Insufficient Switching Bank 1 Sensor 1
P1133 CADILLAC Possible Causes
- Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
- Vacuum leak
- Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 harness is open or shorted
- Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 circuit poor electrical connection
First diagnose P1133 CADILLAC code
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 P1133 CADILLAC code
Labor: 1.0The cost of diagnosing the P1133 CADILLAC 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 P1133 CADILLAC code detected?If the Powertrain Control Module (PCM) determines that the front HO2S did not switch enough times, the PCM will set the P1133 code.
P1133 CADILLAC Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1133 Cadillac DescriptionThe Powertrain Control Module (PCM) monitors the Heated Oxygen Sensor (HO2S) activity for 90 seconds after closed loop operation has begun. The PCM determines if the front HO2S is functioning properly by counting the number of HO2S-1 Lean/Rich (L/R) and Rich/Lean (R/L) switches.
P1133 CADILLAC More InformationNeed more information on how to fix the P1133 CADILLAC code?
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Need more help?Get the P1133 Cadillac code diagnosed by a professional: Find a repair shop in your area
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