TM 1-2840-252-23-3
G-41
FAULT CODE E4, N2B SENSOR EXPANDED INSTRUCTIONS
Refer to numbered steps in figure 127.
Step 2.
Check harness connector PL3 (figure 201) at DECU, and P8 at N2B sensor for tight connections.
Step 3.
Disconnect connectors PL3 and P8 to check pins and sockets.
Step 5.
With PL3 disconnected, check resistance of N2B sensor at harness PL3 connector sockets B and d (figure
Step 6.
With P8 disconnected, check resistance of N2B sensor at sensor J8 connector pins 1 and 2 (figure 202).
Limit is 10.0 - 45.5Ω.
Step 7.
Before tightening harness connectors PL3 and P8, be sure that keyways in harness connectors are aligned
with keyways in component connectors.
Step 10
Refer to manufacturer's procedure for checking operation of N2 pickup, wheel and drive pad.
Step 11
Refer to manufacturer's procedure for checking operation of N2 pickup, wheel and drive pad.
Step 13.
Refer to manufacturer's procedure for diagnosing and replacing harness or N2B sensor.
Step 16.
Refer to manufacturer's procedure for diagnosing and replacing N2 components.
Step 17.
Refer to manufacturer's procedure for diagnosing and replacing harness.
Step 18.
Refer to manufacturer's procedure for diagnosing and replacing N2B sensor.
Step 21.
Refer to manufacturer's procedure for diagnosing and replacing N2 components.
RESISTANCE-CHECK SUMMARY
Resistance (Ω)
Connector
Component
No.
Contacts
Limits
Nominal*
N2B Sensor
PL3
B&d
10.0 - 45.5
25.5
J8
1&2
10.0 - 45.5
25.5
At 25
C
G-90
