Description

Daewoo SOLAR-V 2002 Electrical Schematic – What You Get from an OEM Wiring Manual

Electrical gremlins on a hydraulic excavator will kill your billable hours faster than a blown O-ring. I’ve seen techs waste an afternoon chasing a missing ground on a SOLAR-V because they didn’t have the actual Daewoo SOLAR-V 2002 Electrical Schematic. This isn’t a reprint of a reprint. It’s the original factory document, May 2002, part number TEE02-05. 102 pages, no generic diagrams, no aftermarket guesses. You get the exact wire colors, pin assignments, and logic that Daewoo designed into the machine. If you’re working on a 2002 SOLAR-V excavator, this is the only schematic you should trust.

Monitoring System Configuration – Section 1.1

The monitoring system is the brain that talks to everything. Section 1.1 breaks down the system configuration: instrument panel, battery, engine speed sensor, return filter switch, pilot filter switch, EPOS-V controller, alternator, pressure sensor, coolant temp sensor, fuel sensor, and engine oil pressure switch. The manual shows where each sensor feeds into the connector pin numbers (CN4 and CN5). You can trace a dead dash lamp without guessing which wire feeds it. Page 4 has the actual connector pinout – don’t trust a third-party pinout that swaps pins 7 and 8.

EPOS-V Control: Factory Logic for Power and Work Modes

EPOS-V is the electronic power optimization system. Section 2 covers system configuration, electric diagram, and control logic. You get the exact sequence for Power Mode, Work Mode, Relief Pressure Up, and Engine Overheating Prevention. Want to know how the controller decides to kick in auto-idle? Section 2.8 explains it with the factory algorithm. If you’re tuning the travel speed control on a track-type or wheel-type SOLAR-V, sections 2.9 and 2.10 give the max speed limits and over-speed warnings. No aftermarket manual gives you this level of detail because they usually copy a generic CAN-Bus network description. This one has the real data.

Instrument Panel Wiring – Section 1.8 and 1.10

The instrument panel selection switching (section 1.8) and pilot buzzer operation (section 1.10) are two spots where I’ve seen techs screw up. The manual shows how the panel selects between gauge modes and how the buzzer triggers from the EPOS-V controller. If your SOLAR-V beeps at startup but won’t stop, you need to check the pilot filter switch circuit – the wiring diagram in section 1.2 shows the exact path. No splicing, no continuity guessing. Follow the printed line.

Does This Manual Cover Sensor Testing?

Yes. Section 1.12 is dedicated to sensors. It lists the pressure sensor, coolant temperature sensor, fuel sensor, and engine oil pressure switch. You’ll see the expected resistance ranges and voltage outputs from the factory. For example, the coolant temp sensor on a SOLAR-V uses a thermistor that reads differently than a generic automotive sensor. Without this page, you might swap a good sensor and still have a false reading. The manual also covers the initialization operation (section 1.4) – if you replace the instrument panel, you have to follow that procedure to avoid a blank dash.

Source Authenticity – Why OEM Beats Aftermarket

I’ve burned through three aftermarket “electrical manuals” for Daewoo excavators. Every one had a wiring error – swapped pins, missing connectors, wrong relay locations. This one came from the Daewoo factory in May 2002. It’s stamped with part number TEE02-05. The schematic matches the actual harness on a 2002 SOLAR-V because it was drawn from the production line. If you’re comparing this to a generic wiring book, stop. The aftermarket books don’t have the EPOS-V control logic or the instrument panel configuration switching. They’ll tell you to check “most common causes” – that’s garbage. This manual tells you exactly which pin on CN5 sends the alternator signal.

3 Things the 102 Pages Cover That Save You Time

• Electric Diagrams for Monitoring System AND EPOS-V – Two separate full schematics with connector views. No flipping back and forth between systems.
• Pilot Buzzer Operation Logic – Section 1.10 explains when the buzzer activates (engine overheat, low oil pressure, etc.) and how to test the circuit.
• Automatic Travel Speed Control – Sections 2.9 and 2.11 cover track-type and wheel-type speed limits. Over-speed warning thresholds are listed.

That third point alone will save you from a ticket on a job site. Over-speed warnings on a wheel-type SOLAR-V are tied to the EPOS-V controller – the manual shows how to bypass or adjust the warning via the work/travel max speed control. Not something you want to guess on.

FAQs

Can I use this schematic for a 2003 SOLAR-V?

No. The MAY 2002 manual is specific to the 2002 model year. Daewoo made wiring changes in later production runs. Stick with the correct year.

I don’t have a background in electrical diagnostics. Will this manual help?

If you can read a basic wiring diagram and understand pinouts, yes. The manual starts with system configuration (section 1.1) and walks through each subsystem. It doesn’t teach electronics from zero, but it gives you the factory path to test every circuit. Follow the diagram, check continuity at the connector pins listed on page 4, and you’ll isolate the fault faster than guessing. Pair it with a multimeter and a test light. That’s all you need.

Related Manuals You Might Need

• DAEWOO SOLAR-V Features Technical Manual”>DAEWOO SOLAR-V Features Technical Manual – covers mechanical systems, hydraulics, and component specs.
• Daewoo Lanos Electrical Schematic Manual – 230 Pages OEM Wiring”>Daewoo Lanos Electrical Schematic Manual – 230 Pages OEM Wiring – for passenger car electrical troubleshooting.
• Daewoo BUS DV11, DL08, DL06 2008 Parts Catalog – OEM Factory”>Daewoo BUS DV11, DL08, DL06 2008 Parts Catalog – OEM Factory – parts reference for bus models.

For a deeper understanding of the engine control systems, check the Internal Combustion Engine”>Internal Combustion Engine article. To learn how the EPOS-V controller communicates via the network, see the CAN Bus Network”>CAN Bus Network overview.

Stop chasing electrical ghosts. Access the Factory Manual and get the exact wiring, sensor data, and control logic that Daewoo built into the SOLAR-V. No aftermarket reprint, no missing pages – just 102 pages of the original May 2002 electrical schematic. Get it here.