STEP/SEQUENCE
RESULT
WHAT TO DO NEXT
TM 9-2320-363-20-1
Section 4
TROUBLESHOOTING CHARTS
E.
FLASH CODE:
22
J1587 CODE:
P914
ELECTRONIC FOOT PEDAL ASM (EFPA) CIRCUIT FAILED LOW
(VOLTAGE LOW) ALSO CALLED THROTTLE POSITION SENSOR (TPS)
NOTE - This chart is only to be used If:
1) All basic mechanical checks and physical inspections have been performed with no problem found, and
2) Diagnosis of DDEC-III was started at step Start-1, pg 3-345.41 and you have now been referred here.
22-1
Multiple Code Check
Were there any other active
No other codes
Go to 22-2.
codes besides 91/4?
active codes.
Yes, any or all
Go to VEH5V-1 pg 3-345.419.
of the following codes:
187/3, 91/3.
Yes - But none
Go to 22-2.
of the above.
22-2
Sensor Check
Turn ignition off.
Code 91/4 and/or
Go to 22-6.
Disconnect the TPS
other codes.
connector.
Install a jumper wire between
sockets B and C of the TPS
Code 91/3 (and any
Go to 22-3.
harness connector.
other codes).
Turn ignition on.
Read Active codes.
22-3
Check TPS Adjustment
Remove jumper reconnect TPS.
Getting 48-141 4
Go to 22-5.
Hook-up DDR to the DDL
counts at no throttle and
connector and select Throttle
832-968 counts at full
Sensor display.
throttle.
Read Throttle Counts at both no
Not getting the
Go to 22-4.
throttle and full throttle.
above readings.
Change 3 3-345.237
