Troubleshooting

RENR2696-01 185
Troubleshooting Section
•
Intermittent voltage or the voltage is out of range
Repair: There is a problem in the wiring between
J20 connector and J40 connector. Repair the
wiring or repl
ace the wiring. Verify that the repair
has eliminated the problem.
STOP.
Test Step 5. Check the Supply to the
Power R elay for the Fuel Injection P ump
g00910876
Illustration 97
Schematic for the fuel injection pump and the ECM power supply
A. Turn the keyswitch to the ON position.
B. Measure the voltage between the following
contacts:
•
AandP1:68
•
BandP1:68
•
C and P1:68
•
C and P1:69
•
D and P1:69
Expected Result:
The measured voltage is between 11.0 VDC and 13.5
VDC for a 12 volt system and between 22.0 VDC and
27.0 VDC for a 24 volt system with the keyswitch in
theONpositionand0VDCwiththekeyswitchinthe
OFF position.
Results:
•
OK – Proceed to Test Step 6.
•
Not OK