SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSPONTIAC2008GRAND PRIX BASEREPAIR AND DIAGNOSISBODY & FRAMEDOOR LOCKSKEYLESS ENTRY SYSTEM AND REMOTE FUNCTIONSDIAGNOSTIC INFORMATION AND PROCEDURESREMOTE VEHICLE START INOPERATIVECIRCUIT/SYSTEM TESTING
2008 Pontiac Grand Prix Base

Circuit/System Testing

2008 Pontiac Grand Prix BaseSECTION Circuit/System Testing

Hood Ajar Switch Circuit Malfunction

  1. Ignition OFF, disconnect the harness connector at the hood ajar switch.
  2. Test for less than 10 ohms of resistance between the ground circuit terminal B and ground.
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Connect the harness connector at the hood ajar switch. Disconnect the X1 harness connector at the BCM.
  4. Ignition ON, verify a test lamp does not illuminate between the signal circuit terminal 26 and ground.
    • If the test lamp illuminates, test the signal circuit for a short to voltage.
  5. Ignition OFF, hood closed, test for 700-800 ohms of resistance between the signal circuit terminal 26 and ground.
    • If not within the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, test or replace the hood ajar switch.
  6. Hood ajar, test for 6K-8K ohms of resistance between the signal circuit terminal 26 and ground.
    • If not within the specified range, test or replace the hood ajar switch.
  7. If all circuits test normal, replace the BCM.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.