TM 10-3930-675-24-1
TOPHANDLER SLEWING TROUBLESHOOTING - CONTINUED
0042 00
Table 4. Error Code 256 - Tophandler Clockwise Slewing,
Component Failure Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 256 - Tophandler Clockwise Slewing, 1. Check wires and connectors at a. Repair or replace connectors
Component Failure.
tophandler control valve and
(WP 0113 00).
tophandler junction box for b. Replace damaged wiring
damage.
harness (WP 0221 00).
CAUTION
Uncontrolled function may occur with this error code.
2. Disconnect connector 6008 Replace open or shorted solenoid
from the tophandler CW (WP 0171 00).
DIAG TOP LIFT 12(16)
slewing solenoid. Check
OUTPUT/INPUT
SLEW CW
0mA 0mA
resistance of the solenoid
SLEW CCW
0mA 0mA
between both pins and between
each pin and ground (WP 0048
00-27). Resistance of the
solenoid should be 18 to 26
Ohms.
3. Disconnect connector X188 Replace shorted/grounded X188
from tophandler junction box to solenoid wiring harness (WP
and disconnect solenoid 6008. 0221 00).
Check for short to ground at
loose part of X188 at pin B
(wire 188B) (WP 0048 00-27).
4. Disconnect
ECU
(791) a. Repair or replace shorted
connector 3. Inspect ECU and
wires or connectors (WP 0113
connector pins for damage.
00).
Check wire A188B (pin 3) for b. Replace ECU (791) (WP 0077
short to ground (WP 0048 00-
00).
27).
NOTE
Multiple error codes associated with a common connec-
tor on ECU (791) may be the result of a short to ground
in the harness for the common solenoid voltage. (See
0042 00-4
