EDI DIAGNOSIS
SERVICE MANUAL NUMBER 22
90-860074--1 FEBRUARY 2002 Page 5E-35
TEST DESCRIPTION
Verify continuity between the following:
ECM 68 PIN CONNECTOR
7 TERMINAL CONNECTOR
4 / 5 / 49 4
23 / 45 / 68 7
Verify the actuators resistance between terminals 4 and 7 of the injection pump connector:
RESISTANCE (Ohm)
MINIMUM / MAXIMUM MEASUREMENT
1 ± 0.3
Verify supply voltage to injection pump with the 7 terminal connector unplugged and key ON.
Measure between terminals 5 and 7 of the harness side connector:
CURRENT (VOLTS)
MINIMUM / MAXIMUM MEASUREMENT
12 Battery Voltage
DIAGNOSTIC HELP:
Verify the following:
• Open or short in the CKT Pins 4 / 5 / 49, or CKT Pins 23 / 45 / 68.
• Improper terminals or pins at the 7 terminal connector or ECM.
• Defective fuel injection pump.
• Defective ECM.
Failure of the Fuel Quantity Actuator influences engine performance as follows:
• If the Fuel Quantity Actuator fails with the engine operating, the engine immediately
shuts off. If it failed at start up, the engine does not start. In both cases the MIL is
illuminated.
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