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Home >> Chrysler >> 2004 >> Crossfire Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Electrical Diagnostics >> Diagnosis And Testing >> DTC P0410: Secondary Air Injection Relay Circuit >> Diagnostic Test >> 4. Open Air Pump Relay Control Circuit

4. Open Air Pump Relay Control Circuit

With the ignition off.

Measure the resistance of the Air Pump Relay Control circuit from the PCM C4 harness connector to the Relay Control Module A harness connector.

Fig 1: Measuring Resistance Of Air Pump Relay Control Circuit
G01860142Courtesy of DAIMLERCHRYSLER CORP.

Is the resistance below 5.0 ohms? 

  1. Yes  >> Replace the Relay Control Module.

    See POWERTRAIN VERIFICATION TEST - VER 2  .

  2. No  >> Repair the Air Pump Relay Control circuit for an open.

    See POWERTRAIN VERIFICATION TEST - VER 2  .

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