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 MANUALSINFINITI2002G20 L4-2.0L (SR20DE)REPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURES
2002 Infiniti G20 L4-2.0L (SR20DE)
Scan Tool Testing and Procedures
2002 Infiniti G20 L4-2.0L (SR20DE)SECTION Scan Tool Testing and Procedures
* Automatic Air Conditioning System *
INTRODUCTION AND GENERAL DESCRIPTION
The self-diagnostic system diagnosis sensors, door motors, blower motor, etc. by system line. Refer to applicable sections (items) for details.
Shifting from normal control to the self-diagnostic system is accomplished by starting the engine (turning the ignition switch from "OFF" to "ON") and pressing "OFF" switch for at least 5 seconds.
The "OFF" switch must be pressed within 10 seconds after starting the engine (ignition switch is turned "ON").
This system will be canceled by either pressing (AUTO) switch or turning the ignition switch "OFF".
Shifting from one step to another is accomplished by means of pushing (HOT) or (COLD) switch, as required.
Additionally shifting from STEP 5 to AUXILIARY MECHANISM is accomplished by means of pushing (fan) UP switch.
Introduction And General Description:
INTRODUCTION AND GENERAL DESCRIPTION
The self-diagnostic system diagnosis sensors, door motors, blower motor, etc. by system line. Refer to applicable sections (items) for details.
Shifting from normal control to the self-diagnostic system is accomplished by starting the engine (turning the ignition switch from "OFF" to "ON") and pressing "OFF" switch for at least 5 seconds.
The "OFF" switch must be pressed within 10 seconds after starting the engine (ignition switch is turned "ON").
This system will be canceled by either pressing (AUTO) switch or turning the ignition switch "OFF".
Shifting from one step to another is accomplished by means of pushing (HOT) or (COLD) switch, as required.
Additionally shifting from STEP 5 to AUXILIARY MECHANISM is accomplished by means of pushing (fan) UP switch.
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.