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TM 9-2320-360-20-3
Section 4
TROUBLESHOOTING CHARTS
E. FLASH CODE:
J1587 CODE:
22
P914 -
ELECTRONIC FOOT PEDAL ASM (EFPA) CIRCUIT FAILED HIGH
(VOLTAGE HIGH) ALSO CALLED THROTTLE POSlTlON SENSOR
(TPS)
STEP/SEQUENCE
22-12 Check for Short
to Battery +
Turn ignition off.
Pull out both DDEC circuit breakers
(CB20 &21).
Disconnect 5-way power harness
connector at the ECM.
Read resistance between sockets
D2 and B3 on the vehicle harness
connector.
Also read resistance between
socket D2 on the vehicle harness
connector and the following
sockets on the 5-way power
harness connector: B, C, D, & E.
22-13 Check for Outside
DDEC Battery +
Turn ignition off.
Remove ECM 5-way power
harness connectors.
Remove vehicle harness
connector.
Turn ignition on.
Read voltage A3 (red lead) to a
good ground (black lead).
Read voltage C3 (red lead) to a
good ground (black lead).
22-30 Verify Repairs
Turn ignition off.
Reconnect all connectors.
Turn ignition on.
Clear codes.
Note status of "Check Engine"
light.
If "Check Engine" light does not
stay on, start engine and run
(TM 9-2320-360-10) until
"Check Engine" light comes on or
1 minute. Stop engine.
Read all codes.
RESULT
WHAT TO DO NEXT
Go to 22-13.
greater than 10,000
ohms or open.
to 10,000 ohms.
A short exists between sockets
where less than 10,000 ohms
resistance was read. Repair
short and reset circuit breakers.
Then go to 22-30.
Go to 22-9.
Outside power is shorted to
either (ckt #952) or (ckt #916).
Repair short. Then go to
22-30.
No codes.
Code 91/4 (and
any other codes).
Repairs are complete.
All system diagnostics are
complete. Please review this
section from the first step to find
the error.
Any other codes
Go to START-1, pg H-25, to
except Code 91/4.
service other codes.
H-151
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