Pinpoint Test HM: Secondary Air Injection (AIR) System: Introduction: Notes
NOTE:
This pinpoint test is intended to diagnose the following:
- Powertrain control module (PCM) (12A650).
- Harness circuits: B+, VPWR, SAIR, SAIRM, Ground.
- Secondary Air Injection System Relay (14B192).
- Electric Air Injection Pump (9A486).
- Secondary Air Injection Bypass Solenoid (9H465).
- Secondary Air Injection Diverter Valve (9F491).
- Vacuum supply.
- Air Water Shield/Silencer (9C463).
- Hoses.
- Partial restricted exhaust.