TROUBLESHOOTING WITH A DIAGNOSTIC CODE - CONTINUED
Table 4. Implement Control - Continued.
TEST OR INSPECTION
2. Check switch.
0490 03 - Continued.
(a) Disconnect wiring harness from
implement lockout switch (WP
(b) At wiring harness connector for
1. If continuity check does not agree with
implement ECM, check continuity
to ground of normally closed
work package, switch has failed. Replace
contact and normally open contact.
joystick (WP 0219 00).
Activate switch when this check is 2. If continuity check agrees with Switch
Continuity, Table 5 at end of this work
package, harness has failed. Replace
wiring harness in question (WP 0195 00
thru WP 0201 00).
3. Check for a short to +battery.
1. If continuity exists between one source
Check continuity from each switch wire
at wiring harness connector for
of battery voltage and switch circuit, has
implement ECM to contact J1-34.
failed. Replace wiring harness in
question (WP 0195 00 thru WP 0201 00).
2. If continuity does not exist between one
of sources of battery voltage and switch
circuit, exit this procedure and repeat this
troubleshooting procedure. If cause of
diagnostic code is not found, replace
implement ECM (WP 0060 00).