Section
4
TM 9-2320-363-20-1
TROUBLESHOOTING
CHARTS
E. CODE
21 l THROTTLE
POSITION
SENSOR
(TPS) SIGNAL
VOLTAGE
HIGH
(Cent’d.)
21-6
Check
TPS
Connectors
l Inspect terminals
at the TPS
connectors
(sensor side and
harness side) for damage: bent.
corroded. and unseated pins or
sockets.
21-7
Check
for Short
l Turn ignition off.
l Disconnect the vehicle harness
connector at the ECM.
l Read resistance between sockets
D2 and A3 on the vehicle harness
connector.
21-8
Check
for Short
to
Battery
+
l Remove both fuses to the ECM.
l Disconnect the vehicle harness
and 6-way power harness
connectors
at the ECM.
l Read resistance between socket
D2 of the vehicle harness
connector and socket B3 of the
vehicle harness connector.
l Also read resistance between
socket D2 on the vehicle harness
connector and the following
sockets on the 6-way power
harness connector: A, B, E and F.
RESULT
WHAT
TO DO NEXT
Terminals and
Replace TPS, page 4-248. Then
connectors are okay.
Problem found.
Repair terminals/connectors,
page 3-2. Then go to 21-30.
Less than or
Signal line (ckt#417)
is shorted
equal to 10,000 ohms
to the vehicle +5 Volt line (ckt
#916). Contact Direct Support.
Greater than
Go to 21-8
10.000 ohms or open
All readings
are
Go to 21-9
greater
than 10,000
ohms
or open.
Any reading is
A short exists between the
less than or equal to
sockets where less than 10,000
10.000 ohms.
ohms resistance was read.
Contact Direct Support. Then go
to 21-30.
3-225
