Diagnostic Aids
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2003 Mercury Sable, 2003 Mercury Mountaineer, 2003 Mercury Marauder, 2003 Mercury Grand Marquis, and 2003 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
Perform this test when instructed during QUICK TEST or if directed by other test procedures. This test is used to diagnose the following:
- Wiring Harness Circuits: (AIRB, B+, EAIR, EAIR MONITOR & GND)
- Solid State Relay (SSR)
- Electric Secondary Air Injection (AIR) Pump. See Fig 2.
- Secondary Air Injection (AIR) By-Pass Solenoid
- Powertrain Control Module (PCM)
- Secondary Air Injection (AIR) Diverter Valve
- Vacuum Supply & Hoses
- Air Silencer
- Secondary Air Injection (AIR) Diverter Valve
- Partial Restricted Exhaust