Pinpoint Test HM: Secondary Air Injection (Air) System: Introduction: Notes
WARNING: This page is about a different variant/trim than selected.
This pinpoint test is intended to diagnose the following:
- secondary air injection system relay (14B192)
- electric air injection pump (9A486)
- secondary air injection bypass solenoid (9H465)
- harness circuits: B+, VPWR, AIR, AIRM, ground
- powertrain control module (PCM) (12A650)
- secondary air injection diverter valve (9F491)
- vacuum supply
- hoses
- partial restricted exhaust
Refer to the appropriate SYSTEM WIRING DIAGRAMS for schematic and connector information.