Volvo TSI - User Manual

benjamin35Jul 31, 2025

How to read and clear fault codes in Volvo TSI Automobile Electronics?

C
Christopher BrownJul 31, 2025
To read and clear fault codes in Volvo Automobile Electronics, you can use the VCADS Pro tool or the Pro-Link tool with a Volvo application cartridge. For VN-series vehicles, fault codes can be accessed, read, and cleared via the instrument cluster graphic display. On WX-series vehicles, the Data Link Instrument cluster can access and read a limited number of fault codes.

Summary

General Information

Vehicle Management System Overview

Describes the overall vehicle management system, including VECTRO II electronics and ECUs.

Engine Control System Glossary

Defines terms used in the engine control system, including acronyms and abbreviations.

Specifications

Description of EECU Signals

Details the signal types, measuring points, and voltage/resistance values for EECU connections.

EECU and VECU Pinouts

Lists the pin configurations for EECU and VECU connectors, including wire colors and descriptions.

Schematics

Provides electrical diagrams illustrating the wiring for D12B, D12C, D7C engines, and VECU.

Tools and Equipment

Special Tools for Diagnostics

Lists specific tools required for D12 electronic control system diagnostics and repair, with part numbers.

Other Special Equipment for VCADS Pro

Details additional hardware for operating VCADS Pro diagnostic software, including adapters and cables.

System Design and Function

Vehicle Management System Strategy

Explains the strategy and components of the vehicle management system, focusing on real-time data and interfaces.

Data Link System and Communication

Describes the J1939 and J1587/1708 data links and general communication protocols.

ECU Functions and Components

Details the functions of VECU and EECU, including their roles in vehicle and engine management.

System Components Location and Identification

Illustrates the typical locations of sensors, ECUs, fuses, and relays within the vehicle.

Troubleshooting Guide

Fault Code Management and Diagnosis

Introduces fault code diagnosis, including message/parameter descriptions, reading/clearing, and tracing strategy.

EECU Fault Code Table (MID 128)

Lists fault codes for the Engine Electronic Control Unit (EECU) with corresponding components, FMIs, and sections.

VECU Fault Code Table (MID 144)

Lists fault codes for the Vehicle Electronic Control Unit (VECU) with corresponding components, FMIs, and sections.

Example PID Troubleshooting: MID 128 PID 45 Preheater Status

Details fault codes (FMI 3, 4, 5) related to the preheater status, including conditions, causes, and symptoms.

Service Procedures

Engine ECU Replacement Procedure

Provides a step-by-step guide for replacing the Engine Electronic Control Unit (EECU), including safety precautions.

Volvo TSI Specifications

General

Brand	Volvo
Model	TSI
Category	Automobile Electronics
Language	English