Skylark L4-144 2.4L DOHC VIN T SFI (1997)
Audible Warning Device: Diagnostic Aids
Obdii Circuit Repairs
Repairs for On-Board Diagnostics II (OBDII) emission control circuits follow the procedures. When servicing OBDII circuits, the following guidelines
are also essential:
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Do not move or alter grounds from their manufactured locations.
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Do not tie aftermarket accessories into OBDII circuits.
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Only repair OBDII circuits in accordance with the manufactured configuration.
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Always replace a relay in an OBDII circuit the same replacement part. Damaged relays should be discarded, not repaired.
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Refer to Fuse Block Details to identify OBDII circuit fusing. See: Power and Ground Distribution
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Make sure that CPA (connector position assurance) locks and TPA (terminal position assurance) locks are reinstalled on connectors that use them.
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After repair of connectors or connector terminals, make sure to achieve proper terminal retention. Refer to Repairing Connectors for procedures.
See: Repairing Connectors
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Before repairing OBDII heated oxygen sensors and related wiring, always review the special repair guidelines.
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When installing an electrical ground fastener, be sure to apply the specified torque. Ground torque specifications are listed in Ground
Distribution. See: Power and Ground Distribution
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After repair of connectors, make sure to reinstall connector seals, where used. Inspect seals for wear and damage. Replace worn or damaged seals.