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Circuit/System Testing

WARNING: This page is about a different car, the 2009 GMC Canyon and 2009 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
    IMPORTANT: When removing connectors inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector.
    • PPS module
    • SDM module
    • PPS wiring harness connector
    • SDM wiring harness connector
  1. Ignition OFF, disconnect the harness connector at the PPS module and the SDM.
  2. Test for less than 1 ohm between the serial data circuit terminal 18 at the PPS harness connector and terminal 2 at the SDM harness connector.
    • If greater than the specified range, test the signal circuit for an open/high resistance.
  3. If all circuits test normal, test or replace the PPS module.
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