2003 Mitsubishi Diamante service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you diagnose issues correctly, follow proven repair steps, and use wiring diagrams and system sections to track faults faster.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Electrical diagnostics with wiring diagrams
- Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more
Trims covered
- ES Sedan 4-Door
- VR-X Sedan 4-Door
- LS Sedan 4-Door
Engines covered
- 3.5L 3497CC 215Cu. In. V6 GAS SOHC Naturally Aspirated
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
CERTAIN SPORT UTILITY AND PASSENGER VEHICLES FAIL TO COMPLY WITH FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 225, "CHILD RESTRAINT ANCHORAGE SYSTEMS." THE OWNER'S MANUAL DOES NOT CONTAIN A STEP-BY-STEP
IF THE TETHER STRAP IS IMPROPERLY INSTALLED TO THE TETHER ANCHOR, THE CHILD SAFETY SEAT MAY NOT BE S
A LETTER OUTLINING THE PROBLEM WILL BE SENT TO OWNERS ALONG WITH A STICKER CONTAINING THE CORRECT IN
CERTAIN PASSENGER VEHICLES FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 208, 'OCCUPANT CRASH PROTECTION.' THE BILINGUAL ENGLISH/SPANISH REMOVABLE AIR BAG WARNING L
THIS DOES NOT MEET THE REQUIREMENTS OF THE STANDARD.
MITSUBISHI CARIBBEAN WILL MAIL A CUSTOMER NOTIFICATION LETTER CONTAINING A WRITTEN DESCRIPTION AND A
This is a Dealer Letter sent to dealers informing that Mitsubishi Technical Training has launched the 3rd quarterly technician quiz for 2023.
This Technical Service Bulletin provides instructions and material safety data sheets for removal of rap-film adhesive residue.
This is a Dealer Letter sent to dealers informing that Mitsubishi Technical Training has launched the 2nd quarterly technician quiz for 2023.
This Technical Service Bulletin reviews the regulations that require a label showing the reduction in load carrying capacity be affixed to vehicles when the total net weight of accessories is more than 1.5 percent of the vehicle's gross veh
This Technical Service Bulletin was sent to dealers to explain the difference between normal dew condensation, which is a natural phenomenon, and water penetration caused by improper sealing or a defective/broken part.
This Technical Service Bulletin updates the door adjustment procedure in the Body Section of the applicable service manuals.
This TSB contains troubleshooting steps for diagnosis of various customer complaints relating to the audio system speakers in Mitsubishi vehicles equipped with original equipment audio components.
This is an index of Tech Talk newsletter articles released in 2012.
Showing the 8 most recent of 23 technical service bulletins on file with NHTSA.
AIR BAG DID NOT DEPLOY IN 55 MPH DIRECT FRONT END COLLISION. *JB
TL* THE CONTACT OWNS A 2003 MITSUBISHI DIAMANTE EQUIPPED WITH COOPER CS3 TIRES (NA). WHILE DRIVING 25 MPH, AIR FROM THE VEHICLE'S FRONT DRIVER SIDE TIRE BEGAN TO BE RELEASED. THE CONTACT PULLED THE VE
TL* THE CONTACT OWNS A 2003 MITSUBISHI DIAMANTE. THE CONTACT STATED THAT THE HEATER CORE FLUID LEAKED ONTO THE CENTRAL COMPUTER AND CAUSED THE TRANSMISSION TO FAIL. IN ADDITION, THE GEAR SHIFTER COULD
I HAVE A 2003 MITSUBISHI DIAMANTE LS WITH 71677 MILES ON IT ALL OF THE SUDDEN MY HUSBAND (THE PRIMARY DRIVER) TELLS ME THAT EVERY TIME HE GETS OUT OF THE CAR HE FEELS LIGHT HEADED AND NAUSEOUS. DAYS
TL* THE CONTACT OWNS A 2003 MITSUBISHI DIAMANTE. THE CONTACT STATED THE VEHICLE WAS CONSUMING EXCESSIVE AMOUNTS OF FUEL AND SHE WAS CONCERNED THE VEHICLE WOULD PREMATURELY RUN OUT OF FUEL WHILE DRIVIN
Showing the 5 most serious of 75 complaints filed with NHTSA.
