2003 Volvo WX 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 troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Wiring diagrams and electrical sections
- Powertrain, brakes, steering, suspension, HVAC and more
Trims covered
- WX42 Straight Truck - Low Tilt
- WX64 Straight Truck - Low Tilt
Engines covered
- 10.8L 10834CC 661Cu. In. l6 DIESEL Turbocharged
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
ON CERTAIN HEAVY-DUTY CLASS 8 VEHICLES, THE BODY BUILDER WIRING OPTION WAS MIS-WIRED IN SUCH A WAY THAT THE AUTO NEUTRAL WITH SERVICE BRAKE STATUS OPTION MAY ALLOW THE TRANSMISSION TO GO INTO FORWARD
UNINTENDED MOVEMENT OF THE VEHICLE COULD PUT PERSONS IN DANGER INSIDE AND OUTSIDE THE VEHICLE.
VOLVO TRUCKS WILL NOTIFY ITS CUSTOMERS AND INSTALL AN ADDITIONAL AIR OPERATED STOP LIGHT SWITCH AND
Engine Control Module (EMS) Software (MSW) Information August 2022; Improvement List (Change Log) - US21+OBD22 (13L VGT, TC) And US17+OBD22 (11L) Emissions
Volvo Chassis - Equipped with An Automated Manual Transmission (AMT, iShift) - SNV 19-002 - AMT Oil Filter Housing Corrosion
Volvo Chassis - Drag Link Inspection And Replacement Criteria
DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer
AMT Control Housing Bench Testing - False Failures
Programming Failure - Chassis With Cummins Engine And An Allison Transmission
(Back Office) - Cruise Control Inoperative After Updating Software VECU5 Without ESP Package (UESP)
DTC U012100 - Lost Communication With Anti-Lock Brake System (ABS) Control Module, No Additional Information
Showing the 8 most recent of 30 technical service bulletins on file with NHTSA.
