SECTION 06: ELECTRICAL
DOB 2490-2789 | X3-45 Commuter PA1605 Maintenance Manual (Final Version) – Sec 06 revised June 2017
47
2. Disconnect the electric cable from the
switch.
3. To install a new switch, reverse the
procedure (Figure 49).
Note
Switches are lighted by the use of led. When
lighting on a switch fails, replace defective
switch as a unit.
FIGURE 49: DASHBOARD ROCKER SWITCH
06321
11.1.2 Telltale light replacement
Telltale module is non-serviceable and must be
replaced as a unit.
1. Unscrew and remove the top dashboard
panel.
2. Remove the telltale back wire electric
connectors.
3. Unscrew and remove the telltale module.
4. To replace the telltale module, reverse the
procedure.
11.1.3 Gauge light bulb replacement
1. For any gauge light bulb replacement, the
dashboard panel must be removed in order
to have access to the rear of gauges.
2. Remove bulb socket from the gauge, turn
the defective bulb counterclockwise and pull
it out of the gauge.
3. Push a new bulb and socket asm and turn
clockwise to lock in place.
4. Replace the rear dashboard housing.
11.2 STEPWELL
LIGHTS
Two stepwell lights are illuminated when the
door opening system is activated.
11.2.1 Bulb removal and replacement
Proceed as follows to replace a defective bulb:
1. Unscrew the two phillips-head screws
retaining the lens to the wall, and remove it.
2. With the light lens removed, pull bulb from
the lamp while applying lateral pressure.
3. Install the new bulb into the lamp.
4. Position the light lens and install it.
11.3 DRIVER’S AREA LIGHTS
Two halogen ceiling lights are installed over the
stepwell and the driver’s area. These lights are
frequently used for night-time operation when
passengers board or leave coach.
11.3.1 Bulb removal and replacement
1. Unsnap the lamp with a flat head
screwdriver and remove it.
2. Pull the defective bulb out of the socket.
3. Install the new bulb by pushing it in position.
4. Replace the lamp by snapping it back in
place.
Caution
Do not touch halogen bulbs with bare hands
as natural oils on skin will shorten bulb life
span.
11.3.2 Engine Compartment Lighting
A switch located on the upper right corner of the
rear start panel can be used to actuate the
engine compartment led lights.
FIGURE 50: ENGINE COMPARTMENT LIGHT
