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Page Title: VEH5V - VEHICLE HARNESS +5 VOLTS SUPPLY (CONT'D)
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TM 9-2320-364-20-1
Section IV. TROUBLESHOOTING CHARTS (Cont.)
E. VEH5V - VEHICLE HARNESS +5 VOLTS SUPPLY (CONT'D)
STEP/SEQUENCE
RESULT
WHAT TO DO NEXT
VEH5V-4
Check for +5 Volt
Short Ground
Remove jumper wire.
Both readings are
Go to VEH5V-10.
Disconnect vernier control
greater than 10,000
(para 7-100).
ohms or open.
Read resistance between pins A
and C of the TPS connector.
Either reading is
Go to VEH5V-6.
Also read resistance between pin
less than or equal
B or the TPS connector and
to 10,000 ohms.
a good ground.
VEH5V-5
(Deleted)
VEH5V-6
+5 Volts Check
Using the Vernier
Control
Turn ignition on.
Less than
The engine +5 volt line (ckt #916)
Read voltage on the vernier
4.7 volts.
is shorted to either the sensor
control connector, socket C
return line (ckt #952) or to
(red lead) to socket A
chassis ground. Repair short.
(black lead).
Then go to VEH5V-30.
Greater than
Go to VEH5V-12.
or equal to 4.7 volts.
2-769

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