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TM 9-2320-360-20-3
Section 4
TROUBLESHOOTING CHARTS
E. FLASH CODE:
22
J1587 CODE:
P914 -
ELECTRONIC FOOT PEDAL ASM (EFPA) ClRCUlT FAILED HIGH
(VOLTAGE HIGH) ALSO CALLED THROTTLE POSlTION SENSOR
(TPS)
STEP/SEQUENCE
RESULT
WHAT TO DO NEXT
22-8
Check for Signal Open
Install a jumper wire between
sockets A and B of the TPS
connector.
Read resistance between sockets
D2 and C3 on the vehicle harness
connector.
22-9 Check ECM
Connectors
Check terminals at the
vehicle harness connector (both
the ECM and harness side) for
damage; bent, corroded, and
unseated pins or sockets.
22-10
Check for Short
Turn ignition off.
Disconnect the vehicle harness
connector at the ECM.
Read resistance between sockets
A and C on the TPS connector.
22-11 Check for Open
+5 Volt Line
Install a jumper wire between
sockets A and C of the TPS
connector.
Read resistance between sockets
A3 and C3 on the vehicle harness
connector.
Less than
or equal to 5 ohms.
Greater than
5 ohms or open.
Go to 22-9.
Signal line (ckt # 417) is open.
and/or signal return (ckt #952)
is open. Repair open. If no
open was found, check ECM
terminals A3, D2, C3, and TPS
pins. Then go to 22-30.
Replace ECM (para 7-29.1).
Then go to 22-30.
Problem found.
Repair terminals/connectors
(para 7-77). Then go to 22-30.
Less than or
equal to 10,000 ohms.
Greater than
10,000 ohms or open.
The vehicle +5 volt line
(ckt #916) is shorted to the return
line (ckt #952). Repair short.
Then go to 22-30.
Go to 22-11.
Less than or
equal to 5 ohms.
Greater than
5 ohms or open.
Go to 22-9.
The vehicle +5 volt line (ckt
#916) is open. Repair open.
Then go to 22-30.
H-149
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