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 MANUALSINFINITI2002I35 V6-3.5L (VQ35DE)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSACCELERATOR PEDAL POSITION SENSORTESTING AND INSPECTIONCOMPONENT TESTS AND GENERAL DIAGNOSTICS
2002 Infiniti I35 V6-3.5L (VQ35DE)
Component Tests and General Diagnostics
2002 Infiniti I35 V6-3.5L (VQ35DE)SECTION Component Tests and General Diagnostics
Component Inspection
ACCELERATOR PEDAL POSITION SENSOR
1. Reconnect all harness connectors disconnected.
2. Turn ignition switch "ON".
3. Check voltage between ECM terminals 73 (APP sensor 1 signal), 74 (APP sensor 2 signal) and engine ground under the above conditions.
4. If NG, replace accelerator pedal assembly.
5. Perform "Accelerator Pedal Released Position Learning".
6. Perform "Throttle Valve Close Position Learning".
7. Perform "Idle Air Volume Learning".
ACCELERATOR PEDAL POSITION SENSOR
1. Reconnect all harness connectors disconnected.
2. Turn ignition switch "ON".
3. Check voltage between ECM terminals 73 (APP sensor 1 signal), 74 (APP sensor 2 signal) and engine ground under the above conditions.
4. If NG, replace accelerator pedal assembly.
5. Perform "Accelerator Pedal Released Position Learning".
6. Perform "Throttle Valve Close Position Learning".
7. Perform "Idle Air Volume Learning".
RENDER: 1.0x
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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.