Headlamp Switch Open - Chrysler Town and Country 2003 Owner's Manual

EXTERIOR LIGHTING
Symptom:

HEADLAMP SWITCH OPEN

When Monitored and Set Condition:
HEADLAMP SWITCH OPEN
When Monitored: Ignition ON
Set Condition: A Sensor voltage is over 4.8 volts for more than .0625 seconds.
INTERMITTENT WIRING AND CONNECTORS
HEADLAMP SWITCH MUX CIRCUIT OPEN
HEADLAMP SWITCH MUX RETURN CIRCUIT OPEN
HEADLAMP SWITCH OPEN
BODY CONTROL MODULE
TEST
1 Turn the ignition on.
With the DRBIII , record and erase DTC's.
Turn the headlamps to the ON position.
With the DRBIII , read DTCs.
Does the DRBIII display HEADLAMP SWITCH OPEN?
Yes → Go To 2
→ Go To 5
No
2 Turn the ignition off.
Disconnect the Headlamp Switch harness connector.
Connect a jumper wire between the Headlamp Switch MUX circuit and the
Headlamp Switch MUX Return circuit in the Headlamp Switch harness connector.
Turn the ignition on.
With the DRBIII , select Body, Body Controller and read the Headlamp Switch volts.
Does the DRBIII Headlamp Switch Sensor voltage read less than 0.5 Volts?
Yes → Replace the Headlamp Switch in accordance with the Service
→ Go To 3
No
POSSIBLE CAUSES
ACTION
Information.
Perform BODY VERIFICATION TEST - VER 1.
446
APPLICABILITY
All
All