KC - Testing Notes

DESCRIPTION
The Powertrain Control Module (PCM) uses the Secondary Air Injection solenoids to control the Secondary Air Injection Bypass/Diverter (AIRB/AIRD) valves or the combination Secondary Air Injection valve to direct secondary air to either the engine or exhaust manifold and catalytic converter.


NOTE
You should enter this Pinpoint Test only when you have been directed here from Diagnostic Routines.

REMEMBER
To prevent the replacement of good components, be aware that the following non-Electronic Engine Controls (EEC) areas may be at fault:

- Secondary Air Injection System

- Belt

- Pump

- Valve

- Vacuum Reservoir

- Base Engine

- Blocked Secondary Air Injection Passages

This Pinpoint Test is intended to diagnose only the following:

- Secondary Air Injection Bypass Solenoid

- Secondary Air Injection Diverter Solenoid

- Harness circuits: AIRB/AIRD and VPWR

- Vacuum Supply

- PCM