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Section H
20 - 4
Steer Mode Valve
- Checking Solenoid Operation
The solenoids operate according to the steer mode that is
selected.
Mode:
2 Wheel Steer
4 Wheel Steer
Crab Steer
Operation (energisation) of a solenoid can be easily detected
by placing a steel object (e.g. screwdriver blade) close to the
outer casing. A magnetic attraction of the steel object
towards the solenoid indicates energisation.
If a solenoid is not energising carryout the following checks:
1
Check the fuse is intact. If not, renew and then check
that all steer mode solenoid combinations function
correctly.
2
If the fuse is intact remove the electrical connector from
the malfunctioning solenoid(s) and check that the 12V
supply is present across the connector pins. If not,
check the supply circuit.
Check the solenoid coil resistance which should
3
measure a few ohms (if unsure of the value compare
with a known good solenoid).
Renew the solenoid if the reading indicates a short
circuit (zero ohms) or open circuit (infinate resistance). If
a reading somewhere between the two is obtained,
reverse the two instrument probes and repeat for a
valid check.
9803/3280
Service Procedures
Solenoid(s) Energised:
W
X, Z
X, Y
W
Y
Purchased from www.WorkshopManuals.co.uk
Steering
Section H
X
Z
A396570
20 - 4
Issue 1
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