Sakai SW352, Service Manual

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How to Use Fault Diagnosis Flow Chart
3. How to Use Fault Diagnosis Flow Chart
1. Fault diagnosis code numbers
1) Electric system: E-01 to E-09
2) Hydraulic and mechanical systems: H-01 to H-09
2. How to use the fault diagnosis flow chart
q
Fault diagnosis code number and fault symptom
On top of the flow chart are code number and fault symptom.
w
General precautions
Under the code number and fault symptom are precautions with mark
★ . Take necessary
measures as instructed by these precautions when making the inspection described in each
checking instruction box (
□ ).
e
Sub classification
To make dignosis easier or simplify the flow chart, fault symptom is subclassified. Ex. a) Starter
does not run.
r
How to make diagnosis
・ Each box ( □ ) contains a diagnosis procedure. Depending upon the result inspection or
measurement, proceed to YES or NO line.
・
Normally, if the result is YES then proceed to the upper line. If NO then go to the lower line.
★
The number above each box (
□
) is a reference number. It does not mean a sequence in
which diagnosis procedure should proceed.
Example
q
E-10 Headlamps do not work
w
★ It is assumed that other electric circuits are normal.
★ Take the voltage measurement with the starter switch ON.
e
a) Tail lamps and work lamps are also faulty.
r
NO
1 YES
Possible cause
Remedy
Wire R from lamp switch
terminals 1 and 4 to fuse not
connected or incorrectly
connected.
Lamp switch faulty
Repair or renew
wire.
Renew.
Is stated voltage
present at lamp
switch terminals 1
and 4 that carry
wire R?
• 10
〜
14V
YES
NO
1