 |
|||
|
|
|||
|
|
|||
| ||||||||||
|
|
 TM 9-2320-364-20-1
Allow engine to cool before performing
troubleshooting maintenance. If necessary
use insulated pads and gloves. Hot engine
components will burn and cause injury to
personnel.
Remove all jewelry such as rings, dog tags,
bracelets, etc. If jewelry or tools contact
positive electrical circuits, a direct short
may result. Damage to equipment, injury or
death to personnel may occur.
DDEC ECM connector terminals are easily
damaged. Use care when connecting and
disconnecting connectors.
RESISTANCE TEST
(1) Loosen screw and disconnect engine
harness connector at DDEC ECM.
(2) Are there 100 to 200 ohms present
between wires 112 and 111 at engine
harness connector, terminals S1
and S2?
(a) If there are not 100 to 200 ohms
present, perform Step (3) below
and go to Fault A4 Code 42
Step 2.
(b) If there are between 100 to 200
ohms present, perform Step (3)
below and go to Step 10 of this
Fault.
(3) Connect engine harness connector
and tighten screw.
RESISTANCE TEST
(1) Remove two screws and heat shield.
(2) Disconnect both injector harness
connectors at DDEC ECM with
connector remover.
(3) Read resistance between the injector
return terminal and all the driver
terminals at both harness connectors
(Example: E to A, E to B, G to L,
G to J, E to C and E to D).
(a) If less than 5 ohms are present,
repair wires (see schematic
Fig 2-4) or notify DS Maintenance.
(b) If 5 ohms or more are present, go
to Step 11 of this Fault.
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals