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Home >> Honda >> 2000 >> CR-V SE, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 10 (Engine Controls - Self-Diagnostics - 4.3L) >> Diagnostic Trouble Code Identification >> DTC P0410: Secondary Air Injection (Air) System >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2000 Isuzu Hombre. However, it is still accessible from the selected car via links, so may be relevant.

VCM provides a ground to AIR pump relay. Relay energizes the AIR pump and solenoid. VCM monitors HO2S voltage. If voltages go below calibrated threshold value, VCM interprets this as an indication that AIR system is operational. DTC P0410 sets if VCM determines that HO2S voltages did not respond as expected during monitoring.

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