Operation CHARM: Car repair manuals for everyone.

Electronic Component Handling

STATIC DISCHARGE
^ Discharge any static electrical charges before handling electronic parts by touching ground or maintaining a ground connection to a bare skin area like the wrist.

^ Never touch the Powertrain Control Module (PCM) connector pins, integrated circuit connector pins, or soldered components on the PCM circuit board.

TESTING
^ When measuring voltage at the PCM harness connector, disconnect harness connector with the ignition OFF, then turn ignition "ON" as necessary.

^ To prevent deforming PCM harness connectors, do not probe terminals directly. Instead, insert a pin from the harness side and perform measurements through pin.

PCM DAMAGE
^ Do not try to disassemble the PCM.

^ Before performing electrical welding (for instance, spot welding), disconnect the battery, climate control, injection, cruise control, PCM and radio.

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

^ Avoid getting water on any of the Fuel and Engine Control System Components.

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