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.
2003 Nissan-Datsun Sentra SE-R, AutomaticFACTORY OEM SERVICE PROCEDURE
Section 1332 (Can System (Type 12))
WARNING: This page is about a different car, the 2004 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
- Can System (Type 12)
- System Description
- Component Parts and Harness Connector Location
- Schematic
- Wiring Diagram - CAN -
- Work Flow
- Circuit Check Between TCM and Driver Seat Control Unit
- Circuit Check Between Driver Seat Control Unit and Data Link Connector
- Circuit Check Between Data Link Connector and IPDM E/R
- ECM Circuit Check
- TCM Circuit Check
- Driver Seat Control Unit Circuit Check
- Combination Meter Circuit Check
- Display Control Unit Circuit Check
- BCM Circuit Check
- Data Link Connector Circuit Check
- Steering Angle Sensor Circuit Check
- Transfer Control Unit Circuit Check
- ABS Actuator and Electric Unit (Control Unit) Circuit Check
- IPDM E/R Circuit Check
- CAN Communication Circuit Check
- IPDM E/R Ignition Relay Circuit Check
- Component Inspection
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.