Electronic Component Replacement and Handling

ELECTRICAL/ELECTRONIC TESTING PRECAUTIONS

Never connect or disconnect electrical connections with the ignition switch in the "ON" position, unless specifically directed to do so in a test procedure.

Never use a self powered test lamp to check continuity.

Avoid arcing or shorting when working on, or testing circuits.

Do not probe wires through insulation, damage to the insulation can lead to corrosion of the wire, causing system failure. If insulation is damaged, or pierced, cover hole with thin layer of silicone grease.

To prevent deforming ELECTRONIC CONTROL MODULE harness connectors, do not probe terminals directly. Insert pin(s) from the harness side and perform measurements through pin(s).


ELECTRONIC CONTROL MODULE PRECAUTIONS

Do not try to disassemble any electronic control module.

Before performing electrical welding (for instance, spot welding), disconnect the battery, radio and all electronic control modules.

If temperatures will exceed 176°F (80°C), (example: infra-red spray booth), remove all control modules.

Avoid getting water on any electronic components.

Never apply battery power to a component unless directed to do so in a test procedure.


ELECTRONIC COMPONENT REPLACEMENT PRECAUTIONS

Access trouble codes and record radio presets before disconnecting battery. Memory will be erased when ground is removed.

Disconnect negative battery cable before servicing electronic components.

Fully release connector locks prior to disconnecting.

Route all engine control system wiring at least 4 inches away from ignition wires, to control induced noise.

Be sure connector insulators and shields are in place and connectors are fully seated BEFORE starting engine.