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.
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HOMESERVICE MANUALSISUZU2006ASCENDER S, 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 234 (ENGINE CONTROL SYSTEM & FUEL SYSTEM - 5.3L - DTC P0016 TO DTC P0341)DTC P0106COMPONENT TESTING
2006 Isuzu Ascender S, 4.2 S, 4WD
Component Testing
2006 Isuzu Ascender S, 4.2 S, 4WDSECTION Component Testing
WARNING: This page is about a different car, the 2007 GMC Envoy, 2007 Chevrolet TrailBlazer, and 2007 Buick Rainier. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
You must perform the Circuit/System Testing in order to verify the integrity of the MAP sensor circuits before proceeding with the Component Testing.
- Turn ON the ignition, with the engine OFF and remove the MAP sensor.
- Install a 3A fused jumper wire between the 5-volt reference circuit and the corresponding terminal of the MAP sensor.
- Install a jumper wire between the low reference circuit of the MAP sensor and ground.
- Install a jumper wire at of the MAP sensor signal circuit.
- Connect a DMM between the jumper wire from of the MAP sensor signal circuit and ground.
- Install the J 35555
to the MAP sensor vacuum port. Slowly apply vacuum to the sensor while observing the voltage on the DMM. The voltage should vary between 0-5.2 volts without any spikes or dropouts.
- If the voltage is not within the specified range or is erratic, replace the MAP sensor.
RENDER: 1.0x
NO RELATED
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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.