SECTION 9
ELECTRICAL COMPONENTS
9-1. ELECTRICAL CONTROL PANEL
9-1.1. Maintenance
NOTE: Erratic operation of the vehicle may be
caused by defective controller components.
Before removing the electrical panel, perform
troubleshooting procedures per SECTION 3,
to determine corrective action to be taken.
There are no serviceable parts inside the controller.
No attempt should be made to open the c
ontroller.
Opening the
controller may damage it and will void the
warranty.
The controller is programmed at the factory
specifically for the vehicle model on which it is
equipped. It is important to replace the controller with
the correct preprogrammed unit to assure proper
performance settings intended for that particular
vehicle. See Figure 11-9 for the preprogrammed
controller number.
It is recommended that the controller exterior be
cleaned periodically, and if a hand held programmer is
available, this periodic cleaning provides a good
opportunity to check the controller’s diagnostic history
file. It is also recommended that the controller’s fault
detection circuitry be checked whenever the vehicle is
serviced.
9-1.2. Cleaning
1. Engage the emergency power disconnect switch
and turn off key switch.
2. Remove the compartment cover as described in
paragraph 4-2.1.
3. Remove any dirt or corrosion from the bus bar
area. The controller should be wiped clean with a
moist rag. Allow it to dry before reconnecting the
battery.
9-1.3. Panel Removal.
1. Engage the emergency power disconnect switch
and turn off key switch.
2. Remove the compartment cover as described in
paragraph 4-2.1.
3. Tag and disconnect all electrical cables and
harness from control panel.
4. Remove four screws, four lock washers, four flat
washers and panel.
9-1.4. Panel disassembly.
Refer to Figure 11-9 for the location and identity of the
major replacement components mounted on the panel
and remove defective parts.
9-1.5. Panel Installation.
1. Position panel and secure with four screws, four
lock washers, four flat washers.
2. Con
nect all electrical cables and harness to the
control panel as noted during removal.
3. Install compartment covers as described in
paragraph 4-2.2.
4. Disengage the emergency power disconnect
switch and turn on key switch.
9-2. HORN REPLACEMENT.
1. Engage the emergency power disconnect switch
and turn
off key switch.
2. Remove the compartment cover as described in
paragraph 4-2.1.
3. Tag and disconnect harness from horn.
4. Remove screw, lock washer, flat washer and
horn.
5. Install horn and secure with screw, lock washer,
flat washer.
6. Reconnect harness to horn.
7. Install compartment covers as described in
paragraph 4-2.2.
8. Disengage the emergency power disconnect
switch and turn on key switch.
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