Chrysler 300M 1999 Manual page 273

TEST 4A
REPAIRING LOW BEAM HEADLAMPS THAT WILL NOT TURN OFF
Perform TEST 1A Before Proceeding
START TEST 4A.
WITH THE DRB
SELECT "SENSORS"
AND READ THE
HEADLAMP SWITCH
VOLTAGE.
REMOVE THE LOW
BEAM HEADLAMP
RELAY.
FIG. 1
SUBSTIUTE THE LOW
BEAM HEADLAMP
RELAY WITH A KNOWN
GOOD RELAY.
FIG. 1
REMOVE THE LOW
BEAM HEADLAMP
RELAY.
FIG. 1
WITH AN OHMMETER,
MEASURE BETWEEN
THE J/B 20-WAY
INTERNAL CONN
TERMINAL 14...
*Perform Verification TEST VER-2A.
NOTE: FOR LOCATION
OF ALL COMPONENTS.
SEE GENERAL INFO 4.0
REMOVE THE BODY
CONTROL MODULE
FROM THE JUNCTION
BLOCK.
AND ALL OTHER J/B
20-WAY INTERNAL
CONN TERMINALS.
FIG. 2
**Check connectors - Clean / repair as necessary.
263
ENSURE THE
HEADLAMP SWITCH IS
IN THE OFF
POSITION.
IS THE VOLTAGE NO
APPROXIMAETLY
4.5 VOLTS?
YES
DID THE LOW BEAM NO
HEADLAMPS TURN
OFF?
YES
DID THE LOW BEAM NO
HEADLAMPS COME ON?
YES
IS THE RESISTANCE
BELOW 100.0 OHMS YES
ON ANY OF THE
MEASUREMENTS?
NO
REPLACE THE
HEADLAMP SWITCH.*
CONTINUE TEST
4A ON THE NEXT
PAGE.
REPLACE THE
ORIGINAL LOW BEAM
HEADLAMP RELAY.*
REPLACE THE
JUNCTION BLOCK.*
REPLACE THE BODY
CONTROL MODULE.*
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