P2435 Cadillac 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 Cadillac 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 Cadillac 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 Cadillac?
- 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 Cadillac?
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 Cadillac 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.
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Frequently Asked Questions about P2435 Cadillac Code
What does the OBDII code P2435 mean on a Cadillac?
P2435 indicates an issue with the Secondary Air Injection System Pressure Sensor Circuit on Bank 2, which monitors the air pressure in the system to ensure proper operation.
What are the common symptoms of code P2435 in a Cadillac?
Common symptoms include an illuminated check engine light, reduced engine performance, failed emissions tests, and possibly a rough idle during cold starts.
What causes the P2435 code to appear in a Cadillac?
Possible causes include a faulty secondary air injection pressure sensor, damaged or corroded wiring or connectors, a malfunctioning air pump, or restricted air passages in the system.
Can I drive my Cadillac with the P2435 code?
While the vehicle may still be drivable, ignoring the code can lead to reduced efficiency, increased emissions, and potential damage to the secondary air injection system over time.
How do I diagnose the P2435 code on a Cadillac?
Diagnosis involves using an OBDII scanner to confirm the code, checking the pressure sensor and associated wiring for damage, and testing the air pump and airflow in Bank 2.
How do I fix the P2435 code on a Cadillac?
Repairs may include replacing the faulty pressure sensor, repairing damaged wiring or connectors, cleaning or replacing clogged air passages, or replacing the air injection pump if necessary.
What is Bank 2 in relation to the P2435 code?
Bank 2 refers to the side of the engine opposite Bank 1, typically the side that does not contain cylinder 1. It varies based on engine configuration.
How much does it cost to repair the P2435 code on a Cadillac?
Repair costs can range from $100 to $500 or more, depending on whether the issue lies with the sensor, wiring, or air pump, and labor rates at your repair shop.
Can a bad secondary air injection pump cause the P2435 code?
Yes, a malfunctioning air injection pump can cause incorrect pressure readings, which may trigger the P2435 code.
Will clearing the P2435 code fix the problem permanently?
Clearing the code will only turn off the check engine light temporarily. The root cause of the issue must be addressed to prevent the code from returning.
Discuss the causes and fixes for P2435 Cadillac OBDII Code
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