TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the EVIC harness connector.
Disconnect the Automatic Day/Night Mirror harness connector.
Measure the resistance of the Automatic Headlamp Switch Sensor circuit between
the Automatic Day/Night Mirror harness connector and the EVIC harness connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 4
No
→ Repair the Automatic Headlamp Switch Sensor circuit for an
open.
Perform BODY VERIFICATION TEST - VER 1.
4
Turn the ignition off.
Disconnect the EVIC harness connector.
Disconnect the Automatic Day/Night Mirror harness connector.
Measure the resistance of the Automatic Headlamp Switch Sensor circuit in the
EVIC harness connector to ground.
Is the resistance below 5.0 ohms?
All
Yes
→ Repair the Automatic Headlamp Switch Sensor circuit for a short
to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 5
5
Turn the ignition off.
Disconnect the Automatic Day/Night Mirror harness connector.
Disconnect the EVIC harness connector.
Using a 12 volt test light connected to ground, probe the Automatic Headlamp Switch
Sensor circuit in the Automatic Day/Night Mirror harness connector.
Does the test illuminate brightly?
All
Yes
→ Repair the Automatic Headlamp Switch Sensor circuit for a
shorted to voltage.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the CMTC/EVIC Module.
Perform BODY VERIFICATION TEST - VER 1.
740
OVERHEAD CONSOLE
EC MIRROR DAY/NIGHT LINE FAULT —
Continued