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Home >> Pontiac >> 2001 >> Aztek Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls Self-Diagnostics >> Diagnostic Tests >> DTC P0412: Secondary Air Injection Pump Relay Control Circuit >> Diagnostic Aids

Diagnostic Aids

NOTE: DO NOT operate AIR pump for longer than 60 seconds. Continuous operation of AIR pump will damage pump.

Remove any debris from connector surfaces before servicing a component. Check connector gaskets when diagnosing or replacing a component. Ensure that gaskets are installed correctly.

Check for faulty connections or damaged harness. Check PCM harness connector EGR control circuit for backed-out terminal. Observe scan tool while moving all related harness and connectors. A change in scan tool display indicates fault location.

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