Troubleshooting

182 RENR2696-01
Troubleshooting Section
A. Thoroughly inspect the following terminal
connections on
the P40 Fuel Injection Pump
Connector:
•
P40:6 - Pump Su
pply
•
P40:7 + Pump Supply
Refer to Troubleshooting, “Electrical Connectors
- Inspect”.
B. Thoroughly inspect the following terminal
connections on the P20/J20 Machine Interface
Connector.
•
P20: 58 - Pump Supply
•
P20: 48 + Pump Supply
•
P20: 42 Pump Po
wer Control
C. Perform a 45 N (10 lb) pull test on each of the
wires in the M
achine Interface Connector that are
associated with the following connections:
•
P20:58 - Pump
Supply
•
P20:48 + Pump Supply
•
P20:42 Pump Power Control
D. Check the ECM
connector (Allen head screw) for
the proper torque of 6.0 N·m (55 lb in).
E. Check the har
ness and wiring for abrasions and
for pinch points from the battery to the ECM. Also,
check the harness and wiring for abrasions and
for pinch po
ints from the keyswitch to the ECM.
Expected Result:
All connectors, pins, and sockets should be
completely coupled and/or inserted. The harness and
wiring shou
ld be free of corrosion, abrasion, and/or
pinch points.
Results:
•
OK – Proceed to Test Step 3.
•
Not OK – There is a problem with the wiring or
connectors. Repair the wiring and/or connectors or
replace th
e wiring and/or connectors. Verify that
the repair has eliminated the problem. STOP.