Customer complaint analysis
Record details of the problem (failure, complaint) and how it occurred as described by the customer. For this purpose, use of such an inspection form such as following will facilitate collecting information to the point required for proper analysis and diagnosis.
| Note this form is a standard sample. The form should be modified according to conditions and characteristic of each market. |
Example: customer problem inspection form


Visual inspection
Prior to diagnosis using the mode select switch or sds, perform the following visual inspections. The reason for visual inspection is that mechanical failures (such as oil leakage) cannot be displayed on the screen with the use of mode select switch or sds.
Fail-safe function table
Malfunction code and defective condition tableDtc “c36” (p1764), “c37” (p1765), “c38” (p1766) or “c39” (p1767): secondary
fuel injector circuit
malfunction
Detected condition and possible cause
Detected condition
Possible cause
Some failure exists in the fuel injector signal in a high
load, high revolution condition.
Injector circuit open or short.
Injector malfunction.
Ecm malfunction.
...
Diagnostic information and procedures
Engine mechanical symptom diagnosis
Refer to “engine symptom diagnosis” in section 1a .
Compression pressure check
The compression pressure reading of a cylinder is a
good indicator of its internal condition.
The decision to overhaul the cylinder is often based on
the results of a compressio ...
Exhaust pipe bolt and muffler bolt inspection
Tighten exhaust pipe bolts and muffler bolts
initially at 1 000 km (600 miles, 2 months) and every
12 000 km (7 500 miles, 24 months) thereafter
Check the exhaust pipe bolts and muffler bolts to the
specified torque.
Tightening torque
exhaust pipe bolt (a): 23 n·m (2.3 Kgf-m, 16.5 Lbf-ft)
muf ...