SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 106 (ENGINE CONTROLS SELF-DIAGNOSTICS - 6.5L)DIAGNOSTIC TESTSDTC P0226: ACCELERATOR POSITION SENSOR 3 CIRCUIT PERFORMANCEDIAGNOSTIC PROCEDURES
2004 Oldsmobile Bravada AWD

Diagnostic Procedures

2004 Oldsmobile Bravada AWDSECTION Diagnostic Procedures
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, 2002 Chevrolet RV Cutaway, and 2002 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
  1. Did you perform the Diagnostic System Check-Engine Controls? If yes, go to next step. If no, see DIAGNOSTIC SYSTEM CHECK - ENGINE CONTROLS  under SELF-DIAGNOSTIC SYSTEM.
  2. Turn ON the ignition, with the engine OFF. With the throttle closed, observe the APP voltages on the scan tool. The values are APP 1 - 0.45-0.95 V, APP 2 - 4-4.5 V, and APP 3 - 3.6-4 V. Are the APP voltages at the specified values? If yes, go to next step. If no, go to step  4 .
  3. The DTC is intermittent. If no additional DTCs are stored, see DIAGNOSTIC AIDS  . If any additional DTCs are stored, see DIAGNOSTIC TROUBLE CODE DEFINITIONS  .
  4. Disconnect the APP sensor electrical connector. Turn ON the ignition, with the engine OFF. With a Digital Multimeter (DMM) connected to ground, probe the APP sensor 5-volt reference circuits at the APP harness terminals. Does the voltage measure more than or equal to 4.75 V? If yes, go to next step. If no, go to step  6 .
  5. Turn ON the ignition, with the engine OFF. With a Unpowered Test Light (J 34142-B) connected to battery voltage, probe the APP sensor ground circuits at the APP sensor harness terminals. Is the test lamp ON for all of the circuits? If yes, go to step  9 . If no, go to step  8 .
  6. Turn OFF the ignition. Disconnect the PCM. Check the 5-volt reference circuit for an open or short to ground. If the 5-volt reference circuit is open or shorted to ground, repair the circuit as necessary. Did you perform a repair? If yes, go to step  11 . If no, go to next step.
  7. Check the 5-volt reference circuit for a faulty connection at the PCM and replace the terminal if necessary. Did you perform a repair? If yes, go to step  11 . If no, go to step  10 .
  8. Turn OFF the ignition. Disconnect the PCM. Check for an open sensor ground circuit to the PCM. If you find a condition, repair the circuit as necessary. Did you perform a repair? If yes, go to step  11 . If no, go to step  10 .
  9. Replace the APP module. See appropriate REMOVAL, OVERHAUL & INSTALLATION article. After repairs, go to step  11 .
  10. Replace the PCM. See appropriate REMOVAL, OVERHAUL & INSTALLATION article. Reprogram PCM. See POWERTRAIN CONTROL MODULE  under PROGRAMMING. After repairs, go to next step.
  11. Using the scan tool, clear the DTCs. Start engine and idle the engine at the normal operating temperature. Select DTC and the Specific DTC function. Enter the DTC number that was set. Operate the vehicle within the Conditions for Setting DTC until the scan tool indicates the diagnostic ran. Does the scan tool indicate the diagnostic passed? If yes, go to next step. If no, go to step  2 .
  12. Observe the stored information, Capture Info with a scan tool. Does the scan tool display any DTCs that you have not diagnosed? If yes, see DIAGNOSTIC TROUBLE CODE DEFINITIONS  . If no, system is okay.
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.