GMC chervolet camaro 1999 Service Manual page 36

General Information
(5.1) Stored DTCs: Follow the designated DTC
table exactly in order to make an effective
repair.
(5.2) Symptom No DTC: Select the symptom from
the symptom tables. Follow the diagnostic
steps or suggestions in order to complete the
repair, or refer to the applicable
componenVsystem check.
(5.3) No Published Diagnostics: Analyze the
concern. Develop a plan for the diagnostics.
Utilize the wiring diagrams and theory of
operation.
(5.4) lntermittents: Conditions that are not always
present are intermittent. In order to resolve
intermittents, perform the following .. Observe
the history for similar cases where repair
history may be available. Combine the
technician knowledge with efficient use of
the available service information. Evaluate
the symptoms and conditions described
by the customer. Use a check sheet or other
method in order to identify the circuit or
electrical system component. Follow
the suggestions for intermittent diagnosis
found in the service documentation.
The Tech 1, Tech 2 and Fluke 87 scan tools
have data capturing capabilities that can
assist in detection of intermittents.
Special Tools and Equipment
Tool Illustration Tool Number/Description
J
41340
Ignition Lock Holding Fixture
65540
(5.5)
General Information 0-33
Vehicle Operates as Designed: This
condition exists when the vehicle is found to
operate normally. The condition described
by the customer may be Mrmal. Verify
against another vehicle that is operating
normally. The condition may be intermittent.
Verify the concern under the conditions
described by the customer before releasing
the vehicle:
(6) Re-examine the Concern: If a technician
cannot successfully find or isolate the
concern, a reevaluation is necessary.
Re-verify the concern. The concern could be
an intermittent or normal.
(7) Repair and Verify Fix: After isolating the
cause, make the repairs. Then validate for
proper operation. Verify that the symptom
has been corrected. Verification may involve
road testing the vehicle.