 |
|||
|
|
|||
|
Page Title:
ENG5V - ENGINE HARNESS +5 VOLTS SUPPLY (CONT'D) |
|
||
| ||||||||||
|
|
 TM 9-2320-364-20-1
Section IV. TROUBLESHOOTING CHARTS (Cont.)
E. ENG5V - ENGINE HARNESS +5 VOLTS SUPPLY (CONT'D)
STEP/SEQUENCE
RESULT
WHAT TO DO NEXT
ENG5V-4 Check for +5 Volts
or Return Open
Turn ignition off.
Less than or
Go to ENG5V-5.
Disconnect the engine harness
equal to 5 ohms.
connector at the ECM.
Install a jumper wire between
Greater than
Either the engine +5 volt line
sockets A and C of any sensor
5 ohms or open.
(ckt #416) or the sensor return
connector that reads less than
line (ckt #452) is open. Repair
4.7 volts in Step ENG5V-2.
open. Then go to ENG5V-30.
Read resistance between
sockets W1 and Y2 of the engine
harness connector.
ENG5V-5 Check for Short to
Ground
Turn ignition off.
Both readings are
Go to ENG5V-3.
Remove jumper wire.
greater than 10,000
Read resistance between sockets
ohms or open.
A and C of the sensor connector.
Also read resistance between
Either reading is
The engine +5 volt line (ckt #416)
socket C of the sensor connector
less than or equal
is shorted to either the sensor
and a good ground.
to 10,000 ohms.
return line (ckt #452) or to
chassis ground. Repair short.
Then go to ENG5V-30.
ENG5V-6 Check for Short to
Battery +
Turn ignition off.
All readings are
Go to ENG5V-3.
Disconnect batteries (para 7-87).
greater than 10,000
Disconnect all six connectors at
ohms or open.
the ECM.
Read resistance between socket
Any reading is
A short exists between sockets
W1 on the engine harness
less than or equal
where less than 10,000 ohms
connector and B3 on the vehicle
to 10,000 ohms.
resistance was read. Repair
harness connector.
short. Then go to ENG5V-30.
Also read resistance between
socket W1 on the engine harness
connector and the following
sockets on the 5-way power
harness connector: A and C.
2-763
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals