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TM 9-2320-360-20-3
Section 4
TROUBLESHOOTING CHARTS
E . F L A S H C O D E : 2 2
J1587 CODE:
P914-
ELECTRONIC FOOT PEDAL ASM (EFPA) CIRCUIT FAILED HIGH
(VOLTAGE HIGH) ALSO CALLED THROTTLE POSITION SENSOR
(TPS)
STEP/SEQUENCE
22-4 (Deleted)
22-5
Check TPS
Connectors
Inspect terminals at the TPS
connectors (sensor side and
harness side) for damage,
corrosion, and unseated pins or
sockets.
22-8
Check for +5 Volts
Turn ignition off.
Remove jumper
Turn ignition on.
Read voltage on TPS
connector, socket C (red lead) to
socket A (black lead).
22-7
Check for Short
Turn ignition off.
Disconnect the vehicle harness
connector at ECM.
Read resistance between sockets
A and B on the TPS
connector.
Also read resistance between
socket B of TPS connector
and a good ground.
RESULT
WHAT TO DO NEXT
Terminals and
connectors are okay.
Problem found.
Replace TPS (Electronic Throttle)
(para 7-28). Then go to 22-30.
Repair terminals/connectors
(para 7-77). Then go to 22-30.
Between
4 to 6 volts.
Less than
4 volts.
Greater than
6 volts.
Go to 22-7.
Go to 22-10.
Go to 22-12.
Less than or
equal to 10,000 ohms
on either reading.
Signal line (ckt #417) is shorted
to the return line (ckt #952) or
battery ground. Repair short.
Then go to 22-30.
Greater than
10,000 ohms or open
on both readings.
Go to 22-8.
H-147
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