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Page Title:
S21 1 - TOO FEW SRS (MISSING SRS) (cont) |
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 TM 9-2320-364-20-1
Section IV. TROUBLESHOOTING CHARTS (Cont.)
E. FLASH CODE:
42
J1587 CODE:
S21 1 - TOO MANY SRS (MISSING SRS)
STEP/SEQUENCE
RESULT
WHAT TO DO NEXT
42-13
Check TRS Connectors
Check connectors at TRS
Connectors
TRS requires replacement. Notify
(both harness side and sensor
are okay.
supervisor. Then go to 42-14.
side) for damage; bent,
corroded or unseated pins
Problem found.
Repair terminals/connectors
or sockets, or bad contracts.
(para 7-101). Then go to 42-30.
42-14
Verify TRS/SRS
Turn ignition off.
No Codes.
Repairs are complete.
Reconnect all connectors.
Clear codes.
Code 21/1 reappears
If TRS was just replaced, go
Start and run (TM 9-2320-364-10)
(and any other codes.)
to 42-7. If the TRS was not
engine until "Check Engine" light
replaced, go to 42-6.
comes on or for 1 minute.
Stop engine.
Code(s) other
Go to START-1, pg 2-539, to
Read inactive codes.
than Code 21/1 received.
service other codes.
42-15
Verify Cranking
Voltage
Turn ignition off.
Engine starts.
Service discharged battery
Connect all connectors.
(TM 9-6140-200-14).
Fabricate temporary jumper
Then go to 42-30.
harness per instructions in
Engine does
Replace ECM (para 7-57).
Connect jumper harness to
not start.
Then go to 42-30.
fully charged battery (12 volt).
Connect jumper harness to ECM.
Try to start engine.
2-711
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