7.3.5 Diagnostic Information and Procedures
7.3.5.1 Diagnosis Description
Refer to
get familiar with the system functions and operation before start system diagnostics, so that
it will help to determine the correct diagnostic steps, more importantly, it will also help to determine whether the customer described
situation is normal.
7.3.5.2 Visual Inspection
Before diagnostic, verify the fault. Check whether tire pressure is normal, whether there are obvious signs of mechanical or electrical
damage, whether the mechanical steering column shaft assembly connecting bolt is loose, whether the mechanical steering column
assembly mounting bracket retaining bolt is loose.
7.3.5.3 Fault Symptom Table
During the diagnostic. Refer to the following table. It can help to determine the cause and location of faults. Ascending order indicates
the possible causes of failure. Check each component. If necessary, repair or replace these components.
Symptoms
Suspected Parts
Measures / Refer to
Steering Wheel Loose
1. Steering wheel retaining nut (Loose /
Damaged)
Tighten or replace the nut. Refer to
.
2. Mechanical steering column assembly
connecting bolt (Loose / Damaged)
Tighten or replace bolt. Refer to
Mechanical Steering Column Assembly
.
3. Upper and lower intermediate shaft universal
joints (Worn)
Replace the upper and lower intermediate shaft
assembly. Refer to
4. Steering wheel spline sleeve (Worn)
Replace the steering wheel. Refer to
.
5. Steering column spline shaft (Worn)
Replace the steering column. Refer to
Mechanical Steering Column Assembly
.
6. Upper and lower intermediate shaft spline
sleeve / shaft (wear)
Replace the upper and lower intermediate shaft.
Refer to
.
7. Power steering gear assembly
Repair or replace the power steering gear
assembly. Refer to
.
Mechanical Steering
Column Assembly Loose
1. Mechanical steering column mounting bolt
(Loose / Damaged)
Tighten or replace the blot. Refer to
Mechanical Steering Column Assembly
.
2. Mechanical steering column assembly
installation bearings (Damaged)
Replace the Instrument panel carrier. Refer to
Instrument Panel Carrier Replacement
.
3. Mechanical steering column assembly
(Damaged)
Replace the mechanical steering column
assembly. Refer to
7-42
Steering Wheel and Steering Column
Steering System
EC718/EC718RV EC715/EC715RV 10/2009
Summary of Contents for EC715 2009
Page 4: ......
Page 330: ...Next Step 10 End 2 248 Fuel System JL4G18 D Engine EC718 EC718RV EC715 EC715RV 10 2009 ...
Page 1164: ......
Page 2008: ......