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 MANUALSISUZU2006ASCENDER S, 5.3 M, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 591 (ENGINE CONTROL SYSTEM & FUEL SYSTEM - 4.2L - DTC P0366 T0 DTC P2544)DTC P0650CIRCUIT/SYSTEM VERIFICATION
2006 Isuzu Ascender S, 5.3 M, 4WD
Circuit/System Verification
2006 Isuzu Ascender S, 5.3 M, 4WDSECTION Circuit/System Verification
WARNING: This page is about a different car, the 2009 GMC Envoy and 2009 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON, command the MIL ON and OFF with a scan tool. The MIL should turn ON and OFF as commanded.
- Command the MIL ON and OFF with a scan tool while observing the following control circuit status parameters:
- MIL Ckt. Short Gnd Test Status
- MIL Ckt. Open Test Status
- MIL Ckt. Short Volts Test Status
Each parameter should change from OK and Not Run or from Not Run and OK.
- Operate the vehicle within the Conditions for Running the DTC to verify that the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
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.