Based on information from various sensors, the ECM can
calculate the fuel amount to be injected. The fuel injector is a
solenoid-operated valve and the fuel injection amount is controlled by
length of injection time. The ECM controls each injector by grounding
the control circuit. When the ECM energizes the injector by grounding
the control circuit, the circuit voltage should be low (theoretically
0V) and the fuel is injected. When the ECM de-energizes the injector by
opening control circuit, the fuel injector is closed and circuit voltage
should momentarily peak, and then settle at system voltage.
Inspection
1.
Connect the GDS on the Data Link Connector (DLC).
2.
Measure the output voltage of the FTPS.
Specification: Refer to "Specification"
Removal
1.
Turn the ignition swit ...
Repair procedures
Inspection
[System Inspection]
1.
Disconnect the vapor hose from the intake manifold and connect a vacuum pump to the nipple on the intake manifold.
· At Cold Engine [Engine Coolant Temperatur ...
SRS Control Module (SRSCM): Description and Operation
Description
The primary purpose of the SRSCM (Supplemental Restraints
System Control Module) is to discriminate between an event that warrants
restraint system deployment and an event that does ...