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3. Install the new speed sensor into the housing with new
O-ring lightly coated with multi-purpose grease; then
secure the sensor with the cap screw (threads coated with
blue Loctite #242). Tighten securely.
Gear
2WD
4WD
4WD Lock
2WD Override
4WD Override
Differential-Lock Override
Ignition Switch
To access the ignition switch, dash switches, front acces-
sory connectors, and front switched accessory connector,
the dash must be unfastened and slid to the rear.
VOLTAGE
NOTE: Perform this test on the harness connector.
1. Set the meter selector to the DC Voltage position.
2. Connect the red meter lead to the red wire; then con-
nect the black meter lead to battery ground.
3. Meter must show battery voltage.
NOTE: If the meter shows no battery voltage, trou-
bleshoot the main 30 amp fuse, the battery, or the
main wiring harness.
4. Connect the red meter lead to the red/black wire;
then with the black lead grounded, turn the ignition
switch to the ON position. The meter must show bat-
tery voltage.
5. Connect the red meter lead to the yellow/green wire;
then with the black lead grounded, turn the ignition
switch to the START position. The starter should
engage and the meter must show battery voltage.
NOTE: When the starter is engaged, battery voltage
will be approximately 10.5 DC volts.
CD071
Park
Neutral
Reverse
4000
2250
6500
4500 (500)
5000 (700)
7000
RPM Limiter
Component data can be retrieved using the CATT II. Uti-
lize the Sensor Data screen.
NOTE: The ROV is equipped with an ECM that cuts
fuel spray and spark when maximum RPM is
approached. When the RPM limiter is activated, it
could be misinterpreted as a high-speed misfire.
High/Low
Fail-Safe Mode
7650 (500)
4000
7250 (700)
Headlight Switch
VOLTAGE
1. Connect the red meter lead to the gray wire; then
connect the black meter lead to the black wire.
2. Turn the ignition switch to the ON position. The
meter must show battery voltage.
NOTE: If the meter does not show battery voltage,
troubleshoot the LIGHTS fuse on the power distribu-
tion module, the ignition switch, or the main harness.
3. Connect the red meter lead to the yellow wire; then
select the high beam position on the headlight
switch. The meter must show battery voltage.
4. Connect the red meter lead to either of the two white
wires; then select the low beam position on the head-
light switch. The meter must show battery voltage.
NOTE: The battery voltage will show lower in steps
3 and 4 due to electrical loading of the headlights.
Warranty
Incorrect ECU/
Registration
Gauge (P0630)
(U1001)
6650
4500
131
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Chapters
Table of Contents
Troubleshooting
