Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 784 (EMISSION SYSTEM)EGR VALVE INSPECTIONCIRCUIT OPEN/SHORT INSPECTION
2004 Oldsmobile Bravada RWD
Circuit Open/Short Inspection
2004 Oldsmobile Bravada RWDSECTION Circuit Open/Short Inspection
WARNING: This page is about a different car, the 2004 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION .)
- Inspect the following wiring harnesses for open or short circuit (continuity check).
- Open circuit
- If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
- EGR valve terminal A and PCM terminal 2AR
- EGR valve terminal B and PCM terminal 2AY
- EGR valve terminal E and PCM terminal 2AU
- EGR valve terminal F and PCM terminal 2AV
- EGR valve terminal C and main relay terminal B
- EGR valve terminal D and main relay terminal B
- If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
- Short circuit
- If there is continuity, there is a short circuit. Repair or replace the wiring harness.
- EGR valve terminal A and body GND
- EGR valve terminal B and body GND
- EGR valve terminal E and body GND
- EGR valve terminal F and body GND
- If there is continuity, there is a short circuit. Repair or replace the wiring harness.
- Open circuit
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.
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.