TM 1-2840-252-23-3
G-39
FAULT CODE E2, T1 SENSOR EXPANDED INSTRUCTIONS
Refer to numbered steps in figure 125.
Step 2.
Check harness connector PL3 (figure 201) at DECU, and P10 at T1 sensor for tight connections.
Step 3.
Disconnect connectors PL3 and P10 to check pins and sockets.
Step 5.
With PL3 disconnected, check resistance of T1 sensor at harness PL3 connector sockets and t (figure 202),
r
and s and t. Limit in each case is 356 - 637Ω.
Step 6
Refer to the T12 Temp vs. Resistance graph to determine the expected resistance for the ambient
temperature.
Step 7.
Before tightening harness connectors PL3 and P10, be sure that keyways in harness connectors are aligned
with keyways in component connectors.
Step 10.
With P10 disconnected, check resistance of T1 sensor at T1 sensor J10 connector pins C and A (figure 202),
and B and A. Limit in each case is 356 - 637Ω.
Step 14.
Refer to manufacturer's procedure for diagnosing and replacing harness.
Step 15.
Refer to manufacturer's procedure for diagnosing and replacing harness.
Step 17.
Refer to manufacturer's procedure for diagnosing and replacing T1 sensor.
RESISTANCE-CHECK SUMMARY
Resistance (Ω)
Connector
Component
No.
Contacts
Limits
Nominal*
T1 Sensor
PL3
r&t
356 - 637
549
356 - 637
549
s&t
J10
C&A
356 - 637
549
B&A
356 - 637
549
*At 25
C
G-83
