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TM9-2320-360-20-3
Section 4
TROUBLESHOOTING CHARTS
E. VEH5V - VEHICLE HARNESS +5 VOLTS SUPPLY (CONT’D)
STEP/SEQUENCE
R
E
S
U
L
T
VEH5V-7 Check Vernier
Control Sensor
Connectors
••
Inspect terminals at the vernier
control connectors (sensor side
and harness side) for damage;
bent, corroded and unseated pins
or sockets.
VEH5V-8 Check TPS
l
Turn ignition off.
l
Reconnect the Throttle Position
Sensor (TPS) connector.
l
Turn ignition on.
l
Select TPS CNTS for display
on the DDR.
l
Observe throttle counts at both no
throttle and full throttle (engine
not running).
VEH5V-9 Check TPS
Connectors
l
Turn ignition off.
l
Disconnect the Throttle Position
Sensor (TPS) connector.
l
Inspect terminals at the TPS
connectors (sensor side and
harness side) for damage; bent,
corroded and unseated pins or
sockets.
W H A T T O D O N E X T
Terminals and
connectorsareokay.
Problemfound.
Replace vernier control (para 7-76).
Then go to VEH5V-30.
Repair terminals/connectors
(para 7-77).Then go to
VEH5V-30.
Getting 64-205
counts at no throttle and
no more than 968
counts at full throttle.
Not getting the
above readings.
Go to VEH5V-10.
Go to VEH5V-9.
Terminals and
connectors
Problem found.
Replace TPS (Electronic Throttle)
(para 7-28). Then go to
VEH5V-30.
Repair terminals/connectors (para
7-77). Then go to VEHV-30.
H-251
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