 |
|||
|
|
|||
|
Page Title:
VEH5V - VEHICLE HARNESS +5 VOLTS SUPPLY (CONT'D) |
|
||
| ||||||||||
|
|
 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-10
Check ECM
Connectors
Turn ignition off.
Terminals and
Replace ECM (para 7-57).
Disconnect the vehicle harness
connectors are okay.
Then go to VEH5V-30.
connector at the ECM (if not
already disconnected).
Problem found.
Repair terminals/connectors (para
Check terminals at the vehicle
7-101). Then go to VEH5V-30.
harness connector (both
the ECM and harness side) for
damage; bent, corroded and
unseated pins or sockets.
Especially terminals #952, #916,
#417, and #510. Install new
terminal if in doubt.
VEH5V-11
Check for Short to
Battery +
Turn ignition off.
All readings are
Go to VEH5V-10.
Disconnect batteries (para 7-90).
greater than 10,000
Disconnect the vehicle harness
ohms or open.
and 5-way power harness
connectors at the ECM.
Any reading is
A short exists between the engine
Read resistance between sockets
less than 10,000 ohms.
+5 volt line (ckt #916) and the
A3 and B3 on the vehicle harness
line(s) where less than 10,000
connector.
ohms was read (either: ckt #240,
Also read resistance between
#241, or #439). Repair short.
socket A3 on the vehicle harness
Then go to VEH5V-30.
connector and the following
sockets on the 5-way power
harness connector: A and C.
VEH5V-12
Open Check
Connect TPS connector.
Both 4.7 to
Repair open from ckt #952 to
Turn ignition on.
5.2 volts.
ECM. (Look at ECM terminal.)
Read voltage on vernier control
Repair open, then go to VEH5V-30.
connector, socket C (red lead)
and a good battery ground.
Repeat above only place red lead
Pin C greater
Go to VEH5V-7.
in socket A of the vernier control
than 4.7 volts and
connector.
pin A is zero volts.
2-773
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals