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Home >> Buick >> 2001 >> LeSabre Custom, 4T65E/M15 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics - 3.8L >> Diagnostic Tests >> DTC P0418: Secondary Air Injection Relay Control Circuit >> Diagnostic Aids

Diagnostic Aids

Always use Connector Test Adapter Kit (J 35616-A) or Flat Wire Probe Adapter Kit (J 42675) to front probe terminals. Do not use paper clips or other substitutes as they can damage terminals and cause incorrect measurements.

Do not operate AIR pump for more than 60 seconds. Continuous operation of AIR pump in excess of 60 seconds will damage AIR pump.