Grand Caravan V6-3.3L VIN R (2005)
A reset will only occur if one of the trip functions that may be reset is currently being displayed. Pressing the RESET button for more than three (3)
seconds resets the Distance to Service function while the Distance to Service message is being displayed. The CMTC/EVIC module will send a beep
request to
the BCM.
Simultaneously pressing the RESET button and the STEP button while turning the ignition from Off to On will enter the CMTC/EVIC into the
self-diagnostic mode.
COMPASS/TEMPERATURE (C/T) BUTTON
Actuating the Compass/Temperature Button (C/T) will cause the CMTC/EVIC to display the compass and temperature information. This function will
operate from another traveler display or from the programmable feature mode.
TRAVELER DISPLAY FUNCTIONS
Using the STEP button will change the CMTC/ EVIC between modes of operation and display the appropriate information according to data received
from the PCI Bus.
COMPASS/TEMPERATURE
The CMTC/EVIC simultaneously displays the compass reading and the outside temperature. Outside temperature information is received via the PCI bus
from the FCM.
The CMTC/EVIC module internally senses and calculates the compass direction.
COMPASS OPERATION - ALL
Upon ignition on, if the calibration information stored in the CMTC memory is within the normal range, the CMTC will perform in slow Auto-Cal mode.
In slow Auto-Cal mode, the CMTC continuously compensates for the slowly changing magnetic field of the vehicle. The compass module detects
changes in the vehicle magnetism and makes appropriate internal corrections to ensure proper displayed direction.
However, if the calibration information stored in the CMTC memory is not within the normal range at ignition on, the CMTC will enter fast Auto-Cal.
CAL is displayed along with the temperature.
Auto activation of the fast Auto-Cal mode will also occur when the CMTC is subjected to high magnetic field strength levels, which cause all compass
readings to be erroneous for a continuous period of five (5) minutes. During fast Auto-Cal, CAL will be displayed along with the temperature.
Fast Auto-Cal can also be performed manually, by pressing and holding the RESET button for 10 seconds during the Compass/Temperature display
mode.
SETTING MAGNETIC ZONE VARIANCE
Variance is the difference between magnetic North and geographic North. For proper compass function, the correct variance zone must be set. Refer to
the Zone Variance map for the correct zone. Follow these steps to check or change the variance zone:
CMTC/EVIC:
-
The ignition switch must be in the On position and the CMTC/EVIC display must not be blank.
-
If the compass/temperature data is not currently being displayed, momentarily press and release the C/T button to display compass/temp
information.
-
Press and hold the RESET button (approximately 5 seconds) until VARIANCE = XX is displayed. The CMTC/EVIC will display the variance
zone stored in memory and the word VARIANCE.
-
Use the RESET button to select the proper variance zone number, 1 through 15.
-
After selecting the proper zone number, momentarily press and release the RESET button. The variance zone is then stored in the memory and the
CMTC/EVIC returns to normal operation.
CT:
-
The ignition switch must be in the On position and the C/T display must not be blank. Press and hold the C/T and US/M buttons (approximately 5
seconds) until VARIANCE = XX is displayed. The C/T will display the variance zone stored in memory and the word VARIANCE.
-
Use the US/M button to select the proper variance zone number, 1 through 15.
