Chrysler Town, Dodge Caravan. Manual — part 875
TEST
ACTION
APPLICABILITY
4
Turn the ignition on.
With the DRBIII
t, attempt to communicate with the EATX.
Can communication be established with the EATX?
All
Yes
→ Replace the EVIC Module.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Refer to Communication Category and perform the appropriate
system.
Perform BODY VERIFICATION TEST - VER 1.
736
OVERHEAD CONSOLE
BUS MESSAGES MISSING —
Continued
Symptom:
COMPASS TEST FAILURE
When Monitored and Set Condition:
COMPASS TEST FAILURE
When Monitored:
During the EVIC self test.
Set Condition:
POSSIBLE CAUSES
CMTC/EVIC MODULE
TEST
ACTION
APPLICABILITY
1
Perform the CMTC/EVIC self test.
Turn the ignition off.
Depress and hold the RESET and STEP buttons while turning the ignition on.
NOTE: This test may also be performed using the DRBIII
t.
Does the CMTC/EVIC or DRBIII
t display 9FAILED SELF TEST9?
All
Yes
→ Replace the CMTC or EVIC in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
737
OVERHEAD CONSOLE
Symptom:
DEMAGNETIZE COMPASS AS PER SERVICE MANUAL
When Monitored and Set Condition:
DEMAGNETIZE COMPASS AS PER SERVICE MANUAL
When Monitored:
During the EVIC self test.
Set Condition:
Compass has been magnetized.
POSSIBLE CAUSES
DEMAGNETIZE COMPASS
TEST
ACTION
APPLICABILITY
1
Refer to the Service Information for the Demagnetizing Procedure.
View Repair for Verification Test.
All
Repair
When the Demagnetizing Procedure is complete perform the
Verification Test.
Perform BODY VERIFICATION TEST - VER 1.
738
OVERHEAD CONSOLE
Symptom:
EC MIRROR DAY/NIGHT LINE FAULT
When Monitored and Set Condition:
EC MIRROR DAY/NIGHT LINE FAULT
When Monitored:
With the ignition on.
Set Condition:
The EVIC Module does not receive any messages from the EC Mirror.
POSSIBLE CAUSES
INTERMITTENT CONDITION
AUTOMATIC DAY/NIGHT MIRROR
AUTOMATIC HEADLAMP SWITCH SENSOR CIRCUIT OPEN
AUTOMATIC HEADLAMP SWITCH SENSOR CIRCUIT SHORTED TO GROUND
AUTOMATIC HEADLAMP SWITCH SENSOR CIRCUIT SHORTED TO VOLTAGE
CMTC/EVIC MODULE
TEST
ACTION
APPLICABILITY
1
With the DRBIII
t, erase the DTC.
Cycle the ignition on and off several times, leaving the ignition on for at least 15
seconds.
With the DRBIII
t, read DTCs.
Did the DTC reset?
All
Yes
→ Go To 2
No
→ The condition is not present at this time. Monitor DRBIIIt
parameters while wiggling the related wire harness. Refer to any
Technical Service Bulletins (TSB) that may apply. Visually in-
spect the related wiring harness and connector terminals.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Disconnect the Automatic Day/Night Mirror harness connector.
Turn the ignition on.
Measure the voltage of the Automatic Headlamp Switch Sensor circuit in the
Automatic Day/Night Mirror harness connector.
Is the voltage 4.9 volts?
All
Yes
→ Replace the Automatic Day/Night Mirror in accordance with the
Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
739
OVERHEAD CONSOLE
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