Chrysler Conquest 1988 Service Manual page 270

WIRING HARNESS - Troubleshooting
WIRING HARNESS
NOSOAAA
TROUBLESHOOTING
The most important point rn troubleshootrng IS to determrne "Probable Causes". Once the probable causes :A
are determined. parts to be checked can be limrted to those assoctated with such probable causes. Therefore, -I
unnecessary checks can be eliminated. The determination of the probable causes must be based on~a theory 1__
and be supported by facts, and must not be based on Intuitron only.
TROUBLESHOOTING STEPS
If an attempt
IS
made to solve a problem without gorng through correct steps for troubleshootrng, the problem
I
symptoms could become more complicated, resulting In failure to determine the causes correctly and making
_
Incorrect repairs. The four steps below should beg followed -r.n t~roubleshootrng.
Observe the symptom carefully.
Check if there are also other problems.
In determrnrng the probable causes, rt
IS
necessary ta
check the wiring diagram to understand the circuit as a
system. Knowledge of switches, relays and other parts is
necessary for accurate determination. The causes of
similar problems in the past must be taken Into account.
Checking of Parts Associated
Troubleshooting is carried out by making step-by-step
checks until the true cause-Is found. Always go through
the procedures considering what check is to be made
where for the best results.
After the problems are corrected, be sure to check that
the system operates correctly. Also, check that new
problems have not been caused by the repair.
information for diagnosis
This manual contains the cable diagrams aswell as the tndlvldual circuit drawings, operational explanations,
and troubleshootlng hints for each component re~qulred to tacllltate the task ot troubleshooting. The z
Information is compiled In the followlng manner:
(I) Cable diagrams show the connector posrttons, etc., on the actual vehicle as well as the harness path.
('2) Circuit drawings show the conflguratlon of the circuit w&h all switches in their normal positions.
13) Operational explanatrons include circuit drawings of voltage tlow when the switch is operated and how "?
the component operates In reaction.
(4) Troubleshootlng hints Include numerous~examples of problems which might occur, traced backward in a
common-sense manner to the ongin of the trouble.
Problems whose ongrns may not be found In this manner acre pursued through the various system circuits. 1
REMARKS
Components of ECI. ETACS, ECS, etc. with ECU do not include 3 and 4 above. For this information, refer to a _;_
manual which Includes details of these components.