P1487 – OBD-II DTC

OBD-II DTC P1487 – SCP

DTC P1487 meaning

DTC P1487 refers to a diagnostic trouble code that indicates a problem with the Secondary Air Injection System (SAIS) in vehicles equipped with the SCP (Standard Corporate Protocol) communication system. This code specifically points to an issue where the system is not functioning as intended, often related to the air pump or its control circuit.

DTC P1487 symptoms

Common symptoms associated with DTC P1487 may include:

• Illuminated check engine light
• Reduced engine performance
• Increased emissions
• Possible rough idling
• Failure to pass emissions testing

DTC P1487 causes

Several factors can lead to the triggering of DTC P1487, including:

• Faulty secondary air injection pump
• Damaged or disconnected hoses
• Electrical issues such as short circuits or open circuits in the wiring
• Faulty air injection relay
• Malfunctioning control module

DTC P1487 seriousness

The seriousness of DTC P1487 can vary, but it is generally considered a moderate issue. While it may not cause immediate engine failure, it can lead to:

• Increased emissions, which can affect environmental compliance
• Potential damage to the engine or exhaust system if left unaddressed
• Failure to pass vehicle inspections or emissions tests

How to diagnose DTC P1487

To diagnose DTC P1487, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the P1487 code.
2. Inspect the secondary air injection system components for visible damage or disconnections.
3. Check the electrical connections and wiring for continuity and signs of wear.
4. Test the secondary air injection pump operation.
5. Examine the air injection relay for proper function.
6. Clear the code and perform a road test to see if the code reappears.

How to fix DTC P1487 step-by-step instructions

To fix DTC P1487, follow these steps:

1. Identify and replace any faulty components, such as the secondary air injection pump or relay.
2. Repair or replace damaged wiring and connectors in the air injection system.
3. Ensure all hoses are properly connected and free of leaks.
4. Clear the DTC using an OBD-II scanner.
5. Perform a test drive to verify that the issue has been resolved and the code does not return.

How to erase DTC P1487

To erase DTC P1487, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the ignition without starting the engine.
3. Navigate to the “Erase Codes” or “Clear Codes” option on the scanner.
4. Confirm the action to clear the trouble codes.
5. Disconnect the scanner and start the engine to ensure the code does not return.

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