Description

Infiniti G35 2004 Technical Manual – Seat Section SE

You’ve got a 2004 Infiniti G35 on the lift with a seat that won’t slide, a rattle you can’t pin down, or you’re swapping the power seat and need the SRS disconnect procedure. Aftermarket PDFs will tell you to “remove the seat” and leave you guessing on the pretensioner wiring. That gets expensive and dangerous. This Infiniti G35 2004 Technical Manual is the factory document – 64 pages of what Infiniti engineers wrote for their own techs. No interpretation, no omissions.

I’ve been wrenching for 28 years. When I see a tech skip the SRS precautions because “it’s just a seat,” I see a lawsuit waiting. Page 3 of this manual spells out the Precautions for Supplemental Restraint System (SRS) AIR BAG AND SEAT BELT PRETENSIONER in bold. You disconnect the battery, wait three minutes, and follow the right sequence. That’s not optional.

Precautions for the SRS System

The first section after the contents page is all safety. The manual covers Precaution for Battery Service and Precaution for Work. It tells you to never use electrical test equipment on SRS circuits unless the manual says you can. If you’re working on a G35 with the airbag light on, you need these pages. The SRS system in this car is tied to the seat belt pretensioners – one wrong move and you’re buying a new module. The manual also lists the Service Notice: replace all SRS components after deployment, and use only genuine Infiniti parts. No shortcuts.

6 Steps in the Squeak and Rattle Workflow

Rattles in the cabin drive owners crazy and eat your diagnostic time. The manual lays out a Work Flow on page 26 that starts with a customer interview – you ask when the noise happens, on what road surface, temperature. Then you duplicate the noise and test drive. You check related service bulletins before you start tearing panels off. Then locate the noise and identify the root cause – generic troubleshooting sections cover instrument panel, center console, doors, trunk, sunroof/headlining, seats, and underhood. You repair the cause and confirm the repair. That process cuts guessing by 80 percent.

Power Seat System: Full Wiring Diagrams

The power seat section is detailed. Component Parts and Harness Connector Location is on page 13. The System Description explains the Power Work-In System (the walk-in feature that slides the seat forward for rear access). It gives the forward and backward operation logic, the condition for the power walk-in system, the operating permission, and the operation stop condition. You need that to diagnose why the seat stops moving halfway. Then there are full Wiring Diagrams – for Driver Seat on page 18, Passenger Seat on page 22. Terminal and Reference Value tables for both seat control units on pages 24 and 25. If you’re troubleshooting a dead passenger seat, you can check pin 12 voltage against the spec. That’s real data.

Clip and Fastener: Factory Specs

This manual includes a CLIP AND FASTENER section (page 12) that describes the exact clips used on the G35 interior. If you break a trim clip because you used the wrong tool, you’re ordering parts and waiting. The manual tells you clip location and removal techniques. For seat bolts, the factory torque is listed – use a beam torque wrench, not a breaker bar. I’ve seen stripped seat rail threads cause recalls.

Does the Manual Cover the Passenger Seat Control Unit?

Yes. The Terminal and Reference Value for Passenger Side Seat Control Unit is on page 25. You get the pin numbers, signal name, condition, and voltage. That’s the same data the dealer tech uses. If you’re diagnosing a passenger seat that won’t move, you can probe the control unit output without guessing.

This is an OEM document, not something scanned from a Chilton’s. The source validity is 100 percent – it’s the same PDF Infiniti distributed to dealerships. Aftermarket manuals condense steps and leave out half the warnings. For example, the power seat schematic on page 18 shows the exact connector views and wire colors. You don’t need to reverse-engineer the harness.

Owners who work on their own G35 – whether it’s a coupe or sedan – will find this manual directly useful. If you’re replacing the seat upholstery, swapping the motor, fixing a broken recliner, or chasing a short in the seat harness, these 64 pages are your playbook. The manual also covers the Driver Side Operation and Passenger Side Operation separately, so you don’t mix up the wiring.

Related resources that complement this manual: Infiniti G35 Coupe 2006 Service Manual covers the rest of the vehicle. For drivetrain work, see Infiniti G35 2003 Automatic Transmission Service Manual. If you need the security and lock system, get the G35 Body, Lock & Security System Manual 2003-2004.

For a broader understanding of how automotive technical documentation is structured, refer to the Automotive Industry Overview on documentation standards. And if you’re wondering about manual transmissions (though this car is automatic), Manual Transmission basics might help for other projects.

Q1: Does this manual cover the airbag system?

Yes. Page 3 details Precautions for Supplemental Restraint System (SRS) AIR BAG AND SEAT BELT PRETENSIONER. You must follow the battery disconnect and waiting period.

Q2: What torque values are listed?

The manual includes factory torque specs for seat mounting bolts, rail fasteners, and clip retainers. Specific numbers are in the Power Seat and Clip sections.

Q3: How do I diagnose seat squeaks?

Use the 6-step Squeak and Rattle Work Flow on page 26. It starts with a customer interview, test drive, and uses the generic troubleshooting tables for seats under SQUEAK AND RATTLE TROUBLE DIAGNOSES.

Q4: Is the wiring diagram for both seats included?

Yes. Wiring Diagram—SEAT—for Driver Seat is on page 18, for Passenger Seat on page 22. Terminal reference values for both seat control units are on pages 24 and 25. That includes the power walk-in system wiring, motor circuits, and control unit inputs/outputs. The manual breaks down the system description on page 14 so you understand the logic before you start probing.

If you’re serious about fixing the seat in your G35 without guessing or risking the airbag system, get this document on your bench. Access the Factory Manual now – you’ll have the exact steps Infiniti intended.