Description

BCS EX35 2008 Service Manual – Factory Electrical & Power Control System

If you’re chasing an electrical gremlin on a BCS EX35 and you’re using a third-party manual, stop. That’s where the money disappears. The 2008 BCS EX35 is a machine that relies on its Body Control Module (BCM) to run everything from door locks to headlamps. Aftermarket manuals skip the BCM configuration steps. I’ve seen guys replace a BCM without doing the Special Repair Requirement and then spend a day trying to figure out why the key won’t talk to the car. This factory BCS EX35 2008 Service Manual is the only document that gives you the OEM configuration list and CONSULT-III function tables. 85 pages, published 2008, straight from the manufacturer.

BCS EX35 2008 Service Manual: A Closer Look at the Electrical Section

You open the Table of Contents and the first thing you see is BASIC INSPECTION on page 3. Then INSPECTION AND ADJUSTMENT. But what matters to any technician is the block titled ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (BCM) . That section – Description and Special Repair Requirement – is the difference between a job that finishes in an hour and one that comes back on a hook. The manual walks you through the CONFIGURATION (BCM) : Configuration list on page 5. I’ve had to fix BCM swaps done by shops that didn’t have this list. They set the wrong vehicle options and the EX35 wouldn’t recognize the intelligent key. Waste of billable time.

BCM Configuration: Why OEM Documentation Matters

Every BCS EX35 BCM must be configured after replacement. The OEM manual details exactly which settings go where – from door lock behavior to battery saver thresholds. CONSULT-III (Nissan’s diagnostic tool) is required, but without the factory configuration list you’re flying blind. Page 5 of this 85-page manual gives you the complete configuration items. I’ve seen aftermarket manuals that claim “BCM programming” but omit the Special Repair Requirement step. That’s a liability. If you skip the Configuration step, the EX35 may drain the battery overnight or fail the flasher test. This manual doesn’t let you miss that.

Does This Manual Include Torque Specs or Fluid Capacities?

No. This is an electrical and power control service manual. It covers the BCM, combination switch reading system, signal buffer system, power consumption control system, and every CONSULT-III function from DOOR LOCK to IMMU. You won’t find engine torque specs or transmission fluid capacities here. That’s not what it’s for. If you need engine specs, look at the engine-specific OEM manual. But if you’re dealing with a door lock that won’t cycle, a rear defogger that stays on, or an intelligent key that doesn’t sync, this is the document that has the OEM test procedures. For a different machine check the White Outdoor LT-5 700 Series 2005 Service Manual – OEM Factory Specs.

CONSULT-III Function Tables – Factory Diagnostic Procedures

Starting on page 16, the DIAGNOSIS SYSTEM (BCM) section lists every CONSULT-III function available. Each sub-section has its own CONSULT-III table – DOOR LOCK on page 17, REAR WINDOW DEFOGGER on page 18, BUZZER, INT LAMP, HEADLAMP, WIPER, FLASHER, INTELLIGENT KEY, COMB SW, BCM, IMMU, BATTERY SAVER. That’s 13 individual diagnostic routines. The manual tells you exactly which data monitor items to watch and which active tests to run. If the EX35’s wipers park in the middle of the windshield, the WIPER table on page 23 shows the input signals and activation tests. No guesswork – just the factory procedure.

Component Parts Location: How to Find the BCM Without Guessing

Page 7 shows the Component Parts Location for the BODY CONTROL SYSTEM. Then the COMBINATION SWITCH READING SYSTEM has its own parts location on page 11, and the POWER CONSUMPTION CONTROL SYSTEM on page 15. These are not generic drawings. They include the actual connector views and harness routing for the 2008 EX35. I’ve used these to trace a signal buffer fault in under ten minutes. Aftermarket manuals often omit these location diagrams or use generic images that don’t match the production vehicle. That’s unacceptable in a shop environment. If you’re working in a home garage, you’ll appreciate having the exact locations.

Follow the Special Repair Requirement for BCM Replacement

On page 3, under ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (BCM) : Special Repair Requirement, the manual tells you that after replacing the BCM you must perform the Configuration procedure. It also lists the items you need to check. I’ve seen techs skip this because they used an aftermarket PDF that ended right after “replace BCM”. Then the car comes back with a battery drain. The OEM manual holds you to the standard. If you don’t do the Special Repair Requirement, you haven’t finished the job. Period. For another vehicle that demands similar precision, check the Maruti MB308 Service Manual – OEM Factory Specs for Proper Repairs. And if you operate equipment with hydraulic controls, the Huskie HH100, HH150-2, HH300-2, HH500-2, HH750-2 Service Manual OEM Specs follows the same OEM rigor.

According to the Automotive Industry Overview, proper diagnostics save both time and repeat repairs. This manual embodies that principle. While this manual focuses on electrical systems, related mechanical components like the manual transmission are covered in separate OEM documents. For background on the type of transmission this manual may reference, see Manual Transmission.

Does this manual have wiring diagrams?

No. This manual covers BCM configuration and CONSULT-III diagnostics, not full wiring diagrams.

What is the publication year?

2008.

Can I use this for a different model like the EX45?

No. The BCS EX35 2008 Service Manual is specific to that model and year. The BCM part numbers and configuration data will not match.

What tools are required for BCM configuration?

You need CONSULT-III plus the factory configuration data in this manual. The section on page 5 lists the configuration items. Without the OEM list, you will set the wrong options and the vehicle may not start or may have parasitic drain. Aftermarket manuals often omit this step. That is why you see threads online about “BCM replacement gone wrong”. This manual gives you the exact procedure described under “ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (BCM) : Special Repair Requirement” on page 3. Follow it to the letter.

You’ve got the BCS EX35 in front of you. The BCM is acting up, the intelligent key isn’t talking, or the door locks have a mind of their own. You can either chase the problem with aftermarket documentation that skips the critical steps, or you can use the OEM factory data. The choice is simple – access the Factory Manual and get the correct procedure the first time.