Dodge Neon / Neon SRT-4. Manual — part 101
working, refer to the self-diagnostic test below. If the
mirror doesn’t light up or function, proceed with the
following preliminary tests:
(1) Disconnect
the
compass/temperature
mirror
electrical connector. Using a voltmeter, check for 12v
on the fused B+ circuit cavity. Voltage should be
present. If OK go to Step 2, If NOT OK, repair the
short or open circuit as required.
(2) Using a voltmeter, check for 12v on the fused
ignition run circuit cavity with the ignition switch in
the RUN position. Voltage should be present. If OK
go to Step 3, If NOT OK, repair the short or open cir-
cuit as required.
(3) Key Off. Using a ohmmeter, check for continu-
ity to a good ground on the ground circuit cavities of
the compass/temperature mirror electrical connector.
Continuity should be present. If OK, replace the mir-
ror assembly, If NOT OK, repair the short or open
circuits as required.
COMPASS/TEMPERATURE MIRROR SELF-
DIAGNOSTIC TEST
NOTE: If the ignition switch is turned off during any
period of the self diagnostic procedure, the mirror
will exit the self diagnostic mode.
NOTE: Pressing and releasing the zone/calibration
button will exit the self diagnostic mode and return
to the standard compass/temperature mode
To perform the compass/temperature mirror self
diagnostic routine:
(4) Turn the ignition to the ON position.
(5) Press and hold the zone/calibration (left read-
ing lamp button) button for 20 to 25 seconds.
(6) During testing, if any of the test fail, a “F” will
appear. If more than one test fail, “F0” will appear. If
“F” or F0” appear, replace the compass/temperature
mirror. (Refer to 23 - BODY/INTERIOR/REAR VIEW
MIRROR - REMOVAL).
(7) If a “P” is displayed, that indicates that the
compass/temperature mirror has passed the self diag-
nostic procedure.
NOTE: If, after performing the self diagnostic proce-
dure the compass still has an incorrect reading,
perform the compass calibration or compass varia-
tion adjustment. (Refer to 8 - ELECTRICAL/POWER
MIRRORS/POWER MIRROR - STANDARD PROCE-
DURE - COMPASS CALIBRATION) or (Refer to 8 -
ELECTRICAL/POWER MIRRORS/POWER MIRROR -
STANDARD PROCEDURE - COMPASS VARIATION
ADJUSTMENT).
STANDARD PROCEDURE
STANDARD PROCEDURE - COMPASS
CALIBRATION
The electronic compass unit features a self-cali-
brating design, which simplifies the calibration pro-
cedure.
This
feature
automatically
updates
the
compass calibration while the vehicle is being driven.
This allows the compass unit to compensate for small
changes in the residual magnetism that the vehicle
may acquire during normal use. If the compass read-
ings appear to be erratic or out of calibration, per-
form the following calibration procedure. Also, new
service replacement compass/temperature mirrors
must have their compass calibrated using this proce-
dure. Do not attempt to calibrate the compass near
large metal objects such as other vehicles, large
buildings, or bridges; or, near overhead or under-
ground power lines.
FIRST TIME COMPASS CALIBRATION
The mirror is shipped in the first time calibration
mode with the CAL symbol illuminated. After com-
pleting three 360° turns in an area free from large
metal objects, the CAL symbol should turn off and
the compass will function normally.
MANUAL COMPASS CALIBRATION
(1) Press and hold the Zone/Calibration (left read-
ing lamp button) button for 10 to 15 seconds. This
will toggle the CAL mode on/off, causing the CAL
symbol to illuminate/darken respectively.
(2) Release the button once the CAL symbol illu-
minates/darkens. Manual compass calibration has
been initiated at this point.
(3) Drive the vehicle in circles in an area free from
large metal objects until the CAL symbol is no longer
displayed.
When the CAL symbol is no longer displayed, the
compass is calibrated and should display correct
headings. Verify proper calibration by checking North
(N), South (S), East (E), and West (W). If the com-
pass does not appear accurate, repeat the calibration
procedure in another area.
NOTE: If the “CAL” message remains in the display,
either there is excessive magnetism near the com-
pass, or the unit is faulty. Repeat the calibration
procedure at least one more time.
NOTE: If the wrong direction is still indicated in the
compass display, the area selected for calibration
may be too close to a strong magnetic field. Repeat
the calibration procedure in another location.
8M - 2
MESSAGE SYSTEMS
PL/SRT-4
COMPASS/TEMPERATURE MIRROR (Continued)
STANDARD PROCEDURE - COMPASS
VARIATION ADJUSTMENT
Compass variance, also known as magnetic decli-
nation, is the difference in angle between magnetic
north and true geographic north. In some geographic
locations, the difference between magnetic and geo-
graphic north is great enough to cause the compass
to give false readings. If this problem occurs, the
compass variance must be set.
ZONE METHOD
(1) Using the Variance Settings map, find your
geographic location and note the zone number (Fig.
2).
(2) Turn the ignition switch to the On position.
Press and hold the Zone/Calibration (left reading
lamp button) button for 5 to 10 seconds. The Zone
symbol should be illuminated.
(3) Releasing the Zone /Calibration button while
the ZONE symbol is illuminated will cause the mir-
ror to enter the zone display mode.
(4) The current variance zone will now be dis-
played. To change the zone, press the Zone/Calibra-
tion button until the correct zone is displayed. Wait
for 5 seconds.
(5) After five seconds, the displayed zone will auto-
matically be set in the mirror memory and normal
operation will resume.
(6) Confirm that the correct directions are now
indicated by the compass.
REMOVAL
For compass/temperature mirror removal proce-
dure, (Refer to 23 - BODY/INTERIOR/REAR VIEW
MIRROR - REMOVAL).
AMBIENT TEMPERATURE
SENSOR
DESCRIPTION
Ambient air temperature is monitored by the Com-
pass Temperature Mirror through a PCI databus mes-
sage from the NGC engine controller. The ambient
temperature sensor (Fig. 3) is the source for the NGC
engine controller. The sensor is a variable resistor
mounted in front the radiator, behind the grille, near
the left lower side of the radiator support assembly.
Fig. 2 Variance Settings
Fig. 3 Ambient Temperature Sensor - Typical
PL/SRT-4
MESSAGE SYSTEMS
8M - 3
COMPASS/TEMPERATURE MIRROR (Continued)
For complete circuit diagrams, refer to the appro-
priate wiring information. The ambient temperature
sensor cannot be adjusted or repaired and, if faulty
or damaged, it must be replaced.
OPERATION
The ambient temperature sensor is a variable
resistor that operates on a five-volt reference signal
sent to it by the NGC engine controller. The resis-
tance in the sensor changes as temperature changes,
changing the temperature sensor signal circuit volt-
age to the NGC engine controller. Based upon the
resistance in the sensor, the mirror senses a specific
voltage on the temperature sensor signal circuit,
which it is programmed to correspond to a specific
temperature.
DIAGNOSIS AND TESTING - AMBIENT
TEMPERATURE SENSOR
The ambient temperature sensor can be diagnosed
using the following Sensor Test, and Sensor Circuit
Test. If the temperature sensor and circuit are con-
firmed to be OK, but the temperature display is inop-
erative or incorrect, replace the compass/temperature
display.
SENSOR TESTING
(1) Turn the ignition switch to the OFF position.
Disconnect and isolate the battery negative cable.
Disconnect the ambient temperature sensor wire har-
ness connector.
(2) Measure the resistance of the ambient temper-
ature sensor. At room temperature (approx. 68°F),
the sensor resistance should be between 9-11 Kilo-
hms (9000-11000 ohms). The sensor resistance should
read between these two values. If OK, refer to Sensor
Circuit Testing below. If not OK, replace the faulty
ambient temperature sensor.
SENSOR CIRCUIT TESTING
(1) Turn the ignition switch to the OFF position.
Disconnect and isolate the battery negative cable.
Disconnect the ambient temperature sensor wire har-
ness connector and the NGC engine controller wire
harness connector.
(2) Connect a jumper wire between the two termi-
nals in the body half of the ambient temperature sen-
sor wire harness connector.
(3) Check for continuity between the sensor return
circuit and the ambient temperature sensor signal
circuit cavities of the NGC engine controller wire
harness connector. There should be continuity. If OK,
go to Step 4. If not OK, repair the open sensor return
circuit or ambient temperature sensor signal circuit
to the ambient temperature sensor as required.
(4) Remove the jumper wire from the body half of
the ambient temperature sensor wire harness con-
nector. Check for continuity between the sensor
return circuit cavity of the NGC engine controller
wire harness connector and a good ground. There
should be no continuity. If OK, replace the compass/
temperature display unit. If not OK, repair the
shorted sensor return circuit as required.
REMOVAL
(1) Open hood, disconnect and isolate the negative
battery cable.
(2) Working in the front of the vehicle, reach
through the lower opening in the front fascia to
access the ambient temperature sensor.
(3) Remove the ambient temperature sensor from
the radiator closure panel (Fig. 4).
(4) Disconnect the ambient temperature sensor
electrical connector.
(5) Remove the ambient temperature sensor from
the vehicle.
INSTALLATION
(1) Working in the front of the vehicle, reach through
the lower opening in the front fascia to connect the
ambient temperature sensor electrical connector.
(2) Position the ambient temperature sensor and
install in radiator closure panel.
(3) Connect the negative battery cable.
Fig. 4 Ambient Air Temperature Sensor Location
1 - Radiator Closure Panel
2 - Ambient Air Temperature Sensor
8M - 4
MESSAGE SYSTEMS
PL/SRT-4
AMBIENT TEMPERATURE SENSOR (Continued)
POWER SYSTEMS
TABLE OF CONTENTS
page
page
POWER LOCKS
TABLE OF CONTENTS
page
page
POWER LOCKS
. . . . . . . . . . . . . . . . . . . . . . . . . . 1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
ACTIVATION UNLOCK . . . . . . . . . . . . . . . . . . . 3
STANDARD PROCEDURE - ROLLING DOOR
LOCKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
CUSTOMER PREFERENCES . . . . . . . . . . . . . 4
DECK LID SOLENOID
DIAGNOSIS AND TESTING - DECK LID
. . . . . . . . . . . . . . . . . . . . . . . . . . . 4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
. . . . . . . . . . . . . . . . . . . . . . . . . . 4
DECK LID RELEASE SWITCH
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
. . . . . . . . . . . . . . . . . . . . . . . . . . 4
DOOR LOCK MOTOR
DIAGNOSIS AND TESTING - DOOR LOCK
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
REMOTE KEYLESS ENTRY TRANSMITTER
. . . . . . . . . . . . . . . . . . . . . . . . . . 5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
DIAGNOSIS AND TESTING - REMOTE
STANDARD PROCEDURE - TRANSMITTER
. . . . . . . . . . . . . . . . . . . . . . . 5
POWER LOCK SWITCH
DIAGNOSIS AND TESTING - POWER LOCK
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
. . . . . . . . . . . . . . . . . . . . . . . . . . 6
REMOTE KEYLESS ENTRY MODULE
DIAGNOSIS AND TESTING - REMOTE
. . . . . . . . . . . . . . . 7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
. . . . . . . . . . . . . . . . . . . . . . . . . . 7
POWER LOCKS
DESCRIPTION
POWER DOOR LOCKS
All doors can be locked or unlocked electrically by
operating the switch on either front door panel.
When the door lock switch is activated the Remote
Keyless Entry Module provides power to the door
lock motors through relays internal to the module.
The Remote Keyless Entry (RKE) Module also con-
trols the Vehicle Theft Security System (VTSS).
The power lock motors are also equipped with a
thermal protection system which prevents the motors
from burning out. The motors may chatter if they are
continuously activated.
The power lock motor is integral to the door latch.
If there is a problem with the motor the entire latch
must be replaced. Refer to Body, Doors - Front (or
Rear), Latch, Removal, and Installation.
PL/SRT-4
POWER SYSTEMS
8N - 1
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