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 DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESGENERIC SCAN TOOL (GST)
2002 Infiniti G20 L4-2.0L (SR20DE)
Generic Scan Tool (GST)
2002 Infiniti G20 L4-2.0L (SR20DE)SECTION Generic Scan Tool (GST)
DESCRIPTION
Generic Scan Tool (OBD II scan tool) complying with SAE J1978 has 7 different functions explained below.
ISO9141 is used as the protocol.
GST INSPECTION PROCEDURE
1. Turn ignition switch OFF.
2. Connect "GST" to data link connector for GST. (Data link connector for GST is located under LH dash panel near the fuse box cover.)
3. Turn ignition switch ON.
4. Enter the program according to instruction on the screen or in the operation manual.
(*: Regarding GST screens, sample screens are shown.)
5. Perform each diagnostic mode according to each service procedure.
For further information, see the GST Operation Manual of the tool maker.
Function:
FUNCTION
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.