P2435 Code - Secondary Air Injection System Pressure Sensor Circuit Bank 2
Quick Answer
The secondary air injection system aids in the reduction of hydrocarbon emissions during a cold start. Common causes include Faulty Secondary Air Injection Pump Relay, Faulty Secondary Air Injection Pump, Secondary Air Injection Pump harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P2435 indicates Secondary Air Injection System Pressure Sensor Circuit Bank 2.
- Common causes
- Common causes include Faulty Secondary Air Injection Pump Relay, Faulty Secondary Air Injection Pump, Secondary Air Injection Pump harness is open or shorted.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P2435 Description
Ignition voltage is supplied to the secondary air injection pump and air injection shutoff/check valve relays. The ECM controls the relays by grounding the control circuits, which activates the relays. When the relay contacts close, voltage is supplied to the pump and the valves, which turns the pump on and opens the valves.
The Diagnostic Trouble Code (DTC) will set when the ECM determines that the pressure sensor value change at either shutoff/check valve and the signal variation are not to factory specification when the air injection pump is commanded ON.
What are the Possible Causes of the DTC P2435?
- Faulty Secondary Air Injection Pump Relay
- Faulty Secondary Air Injection Pump
- Secondary Air Injection Pump harness is open or shorted
- Secondary Air Injection Pump circuit poor electrical connection
How to Fix the DTC P2435?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P2435 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P2435 code?
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Need Help with the Code?
Get the P2435 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P2435 Buick — Secondary Air Injection System Pressure Sensor Circuit Bank 2
- P2435 Cadillac — Secondary Air Injection System Pressure Sensor Circuit Bank 2
- P2435 Chevrolet — Secondary Air Injection System Pressure Sensor Circuit Bank 2
- P2435 Dodge — Secondary Air Injection System Air Flow/Pressure Sensor Circuit Bank 2
- P2435 GMC — Secondary Air Injection System Pressure Sensor Circuit Bank 2
Frequently Asked Questions about P2435 Code
1. What are the common symptoms of OBDII code P2435 (Secondary Air Injection System Pressure Sensor Circuit Bank 2)?
- Common symptoms include the Check Engine Light illuminating, rough idling, decreased engine performance, and potential stalling.
2. What are the possible causes of OBDII code P2435?
- Possible causes include a faulty secondary air injection pump, damaged wiring or connectors, a malfunctioning pressure sensor, or a problem with the air injection system valves.
3. How can I diagnose the issue related to code P2435?
- Diagnosing the issue involves using an OBDII scanner to read the code, inspecting the secondary air injection system components, checking the wiring and connectors for damage, and testing the pressure sensor for proper functionality.
4. Can I drive my vehicle with OBDII code P2435?
- It is not recommended to drive your vehicle with this code present, as it can lead to engine performance issues and potential damage if left unresolved.
5. How do I repair OBDII code P2435?
- Repair typically involves replacing the faulty secondary air injection pump, repairing or replacing damaged wiring or connectors, replacing the pressure sensor if needed, and ensuring the air injection system valves are functioning properly.
6. Is it possible to clear the OBDII code P2435 without fixing the underlying issue?
- Clearing the code without addressing the root cause will likely result in the Check Engine Light reappearing once the issue is detected again by the vehicle's onboard diagnostics system.
7. Can a DIY enthusiast fix OBDII code P2435 at home?
- Depending on your mechanical skills and access to tools, some DIY enthusiasts may be able to address this code by following repair guides and utilizing basic diagnostic equipment.
8. How much does it typically cost to repair OBDII code P2435 at a professional mechanic or dealership?
- The cost of repairs can vary depending on the specific issue, parts needed, labor rates, and location. It's best to get a quote from a professional mechanic or dealership for an accurate estimate.
9. Are there any preventive maintenance steps to avoid OBDII code P2435?
- Regularly inspecting and maintaining the secondary air injection system, including checking for any leaks, can help prevent issues that may trigger this code.
10. Will OBDII code P2435 cause my vehicle to fail an emissions test?
- Yes, this code typically indicates a problem with the emissions control system, which can result in a failed emissions test. It's important to address the issue promptly to pass the test.
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