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 MANUALSNISSAN-DATSUN2009SENTRA L4-2.0L (MR20DE)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESGENERIC SCAN TOOL (GST) FUNCTIONEXCEPT FOR CALIFORNIA
2009 Nissan-Datsun Sentra L4-2.0L (MR20DE)
Except For California
2009 Nissan-Datsun Sentra L4-2.0L (MR20DE)SECTION Except For California
TROUBLE DIAGNOSIS
Generic Scan Tool (GST) Function
DESCRIPTION
Generic Scan Tool (OBDII scan tool) complying with SAE J1978 has 8 different functions explained below.
ISO15765-4 is used as the protocol.
The name GST or Generic Scan Tool is used.
FUNCTION
INSPECTION PROCEDURE
1. Turn ignition switch OFF.
2. Connect GST to data link connector (1).
- Accelerator pedal (2)
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 service according to each service procedure.
For further information, see the GST Operation Manual of the tool maker.
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.