LEMON Manuals: Even more car manuals for everyone
Home >> Pontiac >> 2009 >> Torrent Base, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls And Fuel - 3.4L - DTC P0401 To DTC P2544 >> DTC P1682 >> Circuit/System Testing >> Testing the EC Ignition Relay Feedback Circuit

Testing the EC Ignition Relay Feedback Circuit

    IMPORTANT: A resistance of 5 ohms or greater in the circuit will cause the DTC to set.
  1. Ignition OFF, remove the powertrain relay, which is PWR/TRN relay 47, from the underhood fuse block.
  2. Ignition ON, connect a 3A fused jumper wire from B+ to the powertrain ignition 1 voltage circuit terminal. Verify that the EC Ignition Relay Feedback parameter displays B+ on the scan tool.
    • If the scan tool parameter is less than the specified value, test the ignition 1 voltage circuit for an open/high resistance or short to ground. If the circuit tests normal, replace the ECM.
scientia non olet · About LEMON Manuals