TM 1-2840-252-23-3
G-45
FAULT CODE C9, N1B (O) SENSOR SIGNALS FROM OTHER DECU EXPANDED INSTRUCTIONS
Step 3.
Check harness connector PL1 (figure 201) at each DECU for tight connection.
Step 4,
Disconnect connector PL1 at each DECU to check pins and sockets.
Step 5.
With PL1 disconnected at both DECUs, check the resistance between the two DECUs at the following
harness PL1 sockets:
DECU #1
DECU #2
a
GG
b
NN
GG
a
NN
b
Limit in each case < 1Ω
Step 7.
Before tightening harness connector PL1 at each DECU, be sure that keyway in harness connector is aligned
with keyway in component connector.
Step 12.
Refer to manufacturer's procedure for diagnosing and replacing harness.'
Step 14.
Refer to manufacturer's procedure for diagnosing and replacing harness.
Connector
DECU #1
DECU #2
Resistance Limits (Ω)
Component
No.
Contact
No.
Contact
Harness
PL1
a
PL1
GG
<1
PL1
b
PL1
NN
<1
PL1
GG
PL1
a
<1
PL1
NN
PL1
b
<1
G-99