Infiniti Q45 2002 User Manual

SCS-1
SUSPENSION CONTROL SYSTEM
E SUSPENSION
CONTENTS
C
D
F
G
H
I
J
K
L
M
SECTION SCS
A
B
SCS
Revision: 2004 April 2002 Q45
SUSPENSION CONTROL SYSTEM
TROUBLE DIAGNOSIS FOR ACTIVE DAMPER
SUSPENSION ............................................................. 2
Precautions .............................................................. 2
PRELIMINARY CHECK ........................................ 2
Fail-Safe ................................................................... 2
FAIL-SAFE FUNCTIONS ...................................... 2
FAIL-SAFE ITEMS ................................................ 2
Active Damper Suspension Configuration ............... 3
SYSTEM COMPONENTS ..................................... 3
SCHEMATIC ......................................................... 4
CONTROL UNIT TERMINALS AND REFER-
ENCE .................................................................. 14
CONSULT-II Inspection Procedure ........................ 15
SELF-DIAGNOSIS PROCEDURE ...................... 15
DATA MONITOR PROCEDURE ......................... 16
DATA MONITOR MODE ..................................... 16
ACTIVE TEST PROCEDURE ............................. 17
Self-Diagnosis ........................................................ 19
FUNCTION .......................................................... 19
SELF-DIAGNOSTICS PROCEDURE .................. 19
HOW TO READ SELF-DIAGNOSTIC RESULTS ... 19
MALFUNCTION CODE/SYMPTOM CHART ....... 19
HOW TO ERASE SELF-DIAGNOSTIC
RESULTS ............................................................ 20
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC
ITEMS ........................................................................ 21
Inspection 1: Vehicle Speed Sensor ....................... 21
Inspection 2: Steering Angle Sensor ...................... 21
Inspection 3: Stop Lamp Switch ............................. 22
Inspection 4: Vertical G sensor ...............................23
TROUBLE DIAGNOSIS FOR SYMPTOMS .............. 25
Inspection 5: Hard or Soft Feel ............................... 25

Infiniti Q45 2002 Specifications

General

Brand	Infiniti
Model	Q45 2002
Category	Automobile
Language	English

Summary

Trouble Diagnosis Introduction

Precautions and Preliminary Checks

Essential precautions and initial checks before starting diagnostic procedures.

Fail-Safe Functions Overview

Explanation of the system's fail-safe operating modes and conditions.

System Overview and Schematics

System Configuration and Components

Overview of system setup, architecture, and key components.

System Schematic Diagram

Provides the main electrical schematic for the suspension system.

Wiring Diagrams

Detailed circuit diagrams for various sections of the active damper suspension system.

Inspection and Diagnostic Procedures

CONSULT-II Inspection Procedure Overview

Description of the four functional modes available via the CONSULT-II tool.

CONSULT-II Self-Diagnosis Procedure

Step-by-step guide to performing self-diagnosis using the CONSULT-II.

CONSULT-II Data Monitor Procedure

Procedure for monitoring and recording suspension system input and output data.

CONSULT-II Active Test Procedure

Procedure for performing operational checks of indicator lights and actuators.

Trouble Diagnosis for Self-Diagnostic Items

Vehicle Speed Sensor Diagnosis

Steps for diagnosing issues with the vehicle speed sensor.

Steering Angle Sensor Diagnosis

Steps for diagnosing issues with the steering angle sensor.

Stop Lamp Switch Diagnosis

Steps for diagnosing issues with the stop lamp switch.

Vertical G Sensor Diagnosis

Steps for diagnosing issues with the vertical G sensor.

Trouble Diagnosis for Symptoms

Hard or Soft Feel Symptom Diagnosis

Diagnostic steps for addressing symptoms of hard or soft ride feel.