GENERAL – How to Use Troubleshooting/Inspection Service Points
00-6
HOW TO USE TROUBLESHOOTING/INSPECTION SERVICE
POINTS
00100020213
Troubleshooting of electronic control systems for which the MUT-II can be used follows the basic outline
described below. Furthermore, even in systems for which the MUT-II cannot be used, part of these systems
still follow this outline.
TROUBLESHOOTING CONTENTS
1. STANDARD FLOW OF DIAGNOSIS TROUBLESHOOTING
The troubleshooting sections follow the basic diagnosis flow which is given below. If the diagnosis flow
is different from that given below, or if additional explanation is required, the details of such differences
or additions will also be listed.
Diagnosis method
Gathering information
from the customer.
Check trouble symptom.
Reoccurs Does not reoccur.
Read the diagnosis code
Normal code
displayed or
communication
with MUT-II not
possible
Refer to the INSPECTION
CHART FOR TROUBLE
SYMPTOMS (Refer to
applicable group.)
Malfunction
code displayed
Read the diagnosis code
Malfunction
code displayed.
Normal code
displayed.
After taking note of the
malfunction code, erase
the diagnosis code
memory
Recheck trouble symptom.
NG
Malfunction
code displayed
Read the diagnosis codes.
Normal code
displayed.
Refer to the INSPECTION CHART FOR DIAGNOSIS
CODES (Refer to applicable group.)
INTERMITTENT MALFUNCTIONS (Refer to P.00-12.)
2. SYSTEM OPERATION AND SYMPTOM VERIFICATION TESTS
If verification of the trouble symptoms is difficult, procedures for checking operation and verifying trouble
symptoms are shown.
3. DIAGNOSIS FUNCTION
Details which are different from those in the “Diagnosis Function” section on the next page are listed.
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