Dodge ZB 2005 Service Manual page 1397

GENERAL INFORMATION
The skip shift solenoid resets when vehicle speed
drops below 3 MPH (4 kph).
ILLUMINATION AND DIMMING
The cluster receives dimming information from
the BCM via the PCI bus. The cluster responds by
dimming the backlighting and LCD using an inter-
nally generated PWM signal to the illumination
bulbs. The cluster outputs the same PWM signal to
the Gauge Cluster illumination bulbs. The MIC and
Gauge Cluster illumination bulbs are always
grounded. The 5 (five) MIC, 4 (four) Gauge Cluster,
and the LCD illumination bulbs are serviceable.
SERVICEABLE INDICATORS
The following incandescent bulb indicators are
serviceable:
• High Beam
• Service Engine Soon
•
ABS
•
Front Fog
• Left Turn Signal
• Right Turn Signal
All LED's are non- serviceable.
DIAGNOSTIC SELF-TEST
Initiate the Instrument Cluster self test using the
DRBIII or the following procedure:
• Turn the ignition off.
• Press and hold the Trip Reset button while turn-
ing the ignition on.
•
Release the Trip Reset button as the Self-Test
begins.
• Cluster Self- Test sequence:
– Illuminate ''Door Ajar'' and then ''Door Un-
locked'' in the LCD
– Illuminate all digits and decimal in the LCD
– Display the last 6 digits of the Vehicle Identi-
fication Number (VIN).
– Display Flash version (for example, SOF 1.6)
• Instrument Cluster gauge pointers sweep simul-
taneously as follows:
– Tachometer Calibration Points
– Speedometer Calibration Points
– Fuel Gauge Calibration Points
• Gauge Cluster gauge pointers sweep simulta-
neously as follows:
– Engine Coolant
Points
– Voltmeter Calibration Points
– Engine Oil Pressure Calibration Points
Temperature Calibration
– Engine Oil Temperature Calibration Points
• Illuminate Warning Indicators:
– Illuminate all (except Skip Shift, Turn indica-
tors and High Beam) Instrument Cluster and
Gauge Cluster learned and standard indica-
tors (Warning Indicators and LCD warnings)
for approximately 5 seconds.
– Toggle between the Skip shift Amber LED and
the Redline Red LED with a pause in between.
A cluster self-test shall be terminated when the
tachometer is greater than 300 rpm, the ignition
switch is turned off, or the self-test is complete.
3.11 INTERIOR LIGHTING
3.11.1 COURTESY LAMP CONTROL
The body controller has direct control over all of
the vehicle's courtesy lamps. The body computer
will illuminate the courtesy lamps under any of the
following conditions:
1. Any door ajar and courtesy lamp switch on the
headlamp switch is not in the dome off position.
2. The courtesy lamp switch on the headlamp
switch is in the dome on position.
3. A Remote Keyless Entry unlock message is re-
ceived.
4. Driver door unlocked with key.
3.11.2 ILLUMINATED ENTRY
Illuminated entry is when the doors are closed
and the dome switch is not in DOME and the
Dome/flood lamps are illuminated. This feature
allows the lamps to be illuminated for 30 seconds
and then fade to off. Illuminated entry will be
initiated when the customer enters the vehicle by
unlocking the doors with the key fob, with the key
or with the outside handle. Upon exiting the vehicle
using the inside handle or if the RKE lock button is
pressed, illuminated entry will cancel when the
door closes. If the doors are closed and the ignition
switch is turned on and the start button is pressed,
the illuminated entry will also cancel. The illumi-
nated entry feature will not operate if the courtesy
lamp switch is in the dome off position.
3.11.3 INTERIOR LIGHTING BATTERY
SAVER
If any of the interior lamps are left on after the
ignition is turned off, the BCM will turn them off
after 15 minutes. To return to normal operation, the
courtesy lamps will operate after the dome lamp
switch or door ajar switch changes state.
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