|
| |
TM 9-2320-360-20-3
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 H-25 and you have now been referred here.
NOTE - Checks at the TPS connector must be made at MC36, not at the connector on the electronic throttle.
STEP/SEQUENCE
22-1
Multiple Code Check
Were there any other active
codes besides 91/4?
22-2
Sensor Check
Turn ignition off.
Disconnect the TPS
connector.
Install a jumper wire between
sockets B and C of the TPS
harness connector.
Turn ignition on.
Read active codes.
22-3
Check TPS Adjustment
Remove jumper and reconnect
TPS.
Hook-up DDR to the DDL
connector and select TPS
CNTS.
Read TPS Counts at both no
throttle and full throttle.
RESULT
WHAT TO DO NEXT
No other active codes.
Go to 22-2.
Yes, any or all
of the following codes:
187/3, 91/3.
Go to VEH5V-1 (page H-247).
Yes - But none
of the above.
Go to 22-2.
Code 91/4 and/or
other codes.
Go to 22-6.
Code 91/3 (and any
other codes).
Go to 22-3.
Go to 22-5.
less than 968 counts at
full throttle.
Replace TPS (Electronic
Throttle) (para 7-28). Then go
to 22-30.
H-145
|
