dodge Workshop Repair Guides

Dodge Workshop Service and Repair Manuals

Automatic Shut Down (ASD) Relay <--> [Main Relay (Computer/Fuel System)] > < General Operation|Page 175
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- Cam and Crankshaft Position (CMP and CKP Sensors)
- Throttle Opening (TPS)
- Battery Voltage
- Engine Knock Sensor

 
PCM CONTROLS:

 

- De-energizes EGR system, by grounding Electronic EGR Transducer (EET) solenoid.
- Adjusts injector pulse width, to supply additional fuel.
- Monitor oxygen sensor and fine tune air/fuel ratio by varying injector pulse width
- Adjust ignition timing.
- De-energize A/C Compressor Clutch relay (if selected)

Ignition Switch Off

 

When the ignition switch is OFF the PCM interrupts the ground to the ASD and fuel pump relays.  

                   

Automatic Shut Down (ASD) Relay <--> [Main Relay (Computer/Fuel System)] > < General Operation|Page 175