Perkins NJ Series Troubleshooting Manual page 162

162
Troubleshooting Section
Illustration 63
Detailed view of the sensor locations on the 1106D engine
(1) Primary speed/timing sensor (crankshaft)
(2) Secondary speed/timing sensor
(camshaft)
Illustration 64
Typical example of the speed, crank and the fuel/camshaft speed sensors
(1) Voltage Supply (8V)
Test Step 1. Inspect the Electrical
Connectors and the Harness
A. Turn the keyswitch to the OFF position.
B. Thoroughly inspect the P2 connector and
the suspect sensor connections. Refer to
Troubleshooting, "Electrical Connectors - Inspect".
C. Perform a 45 N (10 lb) pull test on each of
the wires in the suspect sensor connector and
the sensor connections at the ECM. The wire
connectors are shown in illustration 59.
D. Check that the ground connection on the ECM
and the negative terminal on the battery are
correctly installed.
E. Check the ground connection on the ECM for
abrasions and pinch points.
(2) Signal (Sig)
F. Check the screw for the ECM connector for the
G. Check the harness for abrasion and pinch points
H. Check that the suspect sensor is installed
Expected Result:
The electrical connectors and the cables are correctly
installed.
Results:
•
OK – The harness is OK. Proceed to Test Step 2.
• Not OK
correct torque of 5.0 N·m (44 lb in).
from the suspect sensor to the ECM.
correctly. Check that the suspect sensor is fully
seated into the engine. Check that the sensor is
securely latched.
SENR9982-01
g01249863
g01212995