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H1 V8-6.5L DSL Turbo (1999)

Relays and Modules > Relays and Modules - Powertrain Management > Relays and Modules - Computers and Control Systems > Engine Control Module > Component Information > Description and Operation

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Engine Control Module: Description and Operation

POWERTRAIN CONTROL MODULE (PCM)

The PCM controls operation of all of the engine and transmission outputs. It is on a bracket attached to floor under the center console. The data link
connector is the access point for the scan tool. The connector is under the instrument panel at the left side of the steering column. It is a multi-pin
connector with integral mounting bracket.

Signal inputs used by the PCM include:

-

Coolant temperature

-

Intake air temperature

-

Boost/baro pressure

-

Optical/fuel temperature sensor

-

Crankshaft position sensor

-

Accelerator pedal position sensors (APP)

-

Cruise control

-

A/C request

-

Vehicle speed sensor

-

Automatic transmission fluid pressure manual valve position switch

-

Transmission input speed sensor

-

Transfer case low range switch

-

Transmission fluid temperature sensor

-

Diagnostic request

Relays and Modules > Relays and Modules - Powertrain Management > Relays and Modules - Computers and Control Systems > Engine Control Module > Component Information > Description and Operation

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