P0160
Low SeverityO2 Sensor Circuit No Activity (Bank 2, Sensor 2)
Emissions System
P0160 — Instant Answer
O2 Sensor Circuit No Activity (Bank 2, Sensor 2)
Severity: LOW SEVERITY
Meaning: Downstream O2 sensor bank 2 shows zero activity.
Safe to drive? Usually yes with caution, but confirm root cause before long trips.
Estimated repair cost: $25 - $80
Most common causes:
- 1. Dead sensor (35-45% of cases)
- 2. Disconnected (10-25% of cases)
Common Causes
How to Diagnose P0160
- 1Verify connection
- 2Check heater
- 3Replace sensor
OEM Procedures for P0160
O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 2) Found 58 OEM service manual procedures.
11 51 000 Removing and installing/replacing the coolant pump (X5 M) - Replacement: Prepare the coolant pump
11 51 000 Removing and installing/replacing the coolant pump (X5 M) - Replacement: Prepare the coolant pump
11 51 000 Removing and installing/replacing the coolant pump (X5 M) - Replacement: Prepare the coolant pump
11 51 000 Removing and installing/replacing the coolant pump (X5 M) - Replacement: Prepare the coolant pump
11 51 000 Removing and installing/replacing the coolant pump (X5 M) - Replacement: Prepare the coolant pump
11 51 000 Removing and installing/replacing the coolant pump (X5 M) - Replacement: Prepare the coolant pump
11 51 000 Removing and installing/replacing the coolant pump (X5 M) - Replacement: Prepare the coolant pump
11 51 000 Removing and installing/replacing the coolant pump (X5 M) - Replacement: Prepare the coolant pump
Showing 8 of 58 procedures
OEM Diagnostic Flowchart
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Parts & Tools for This Job
Common parts shoppers buy for P0160 O2 Sensor Circuit No Activity (Bank 2, Sensor 2).
Oxygen Sensor
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Catalytic Converter
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EVAP Purge Valve
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Gas Cap
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OBD2 scanner
Read codes and freeze-frame data before you guess at the fault.
Most diagnostic jobs start with a scan tool and a verified code path.
Check SpecificationsBattery tester
Check cranking and charging health before replacing expensive parts.
A weak battery can mimic alternator or starter problems.
Check SpecificationsMultimeter kit
Confirm voltage, continuity, and sensor power with one simple kit.
A meter is the cheapest way to rule out a bad circuit fast.
Check SpecificationsReady to fix it yourself?
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Related Resources
Repair guides, symptom pages, and wiring diagrams related to P0160.
OEM Manual Evidence
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Related Symptoms
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Open the exact vehicle hub grounded by OEM manual evidence related to P0160.
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Exact Repair Workflows
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Open the exact repair flow most commonly associated with P0160 on this vehicle.
Open the exact repair flow most commonly associated with P0160 on this vehicle.
Open the exact repair flow most commonly associated with P0160 on this vehicle.
Open the exact repair flow most commonly associated with P0160 on this vehicle.
Open the exact repair flow most commonly associated with P0160 on this vehicle.
Related Codes
General fault in the downstream O2 sensor on bank 2.
Downstream O2 sensor bank 2 responds too slowly.
The downstream O2 sensor on bank 1 shows no voltage changes at all. The sensor is likely dead.
Frequently Asked Questions
- Will this affect my engine?
- No performance effect. Only matters for emissions testing.
- Can I just disconnect it?
- That will cause the same code. Replace the sensor for a proper fix.
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Author & Review
Published by AllOEMManuals, founded by Lyndon Bedford, an automotive technician with 20 years of experience. He owned and operated a mechanic shop in Hurst, Texas from 2014 to 2022 and continues hands-on repair work.
Content may combine manual references, general repair templates, and AI-assisted drafting. Confirm the source, vehicle configuration, and applicability before working. Report corrections through our contact page.
Last updated: 2026-10-29