Repairing Dimming Level Switch Failure - Chrysler 300M 1999 Manual

TEST 3A

REPAIRING DIMMING LEVEL SWITCH FAILURE

Perform TEST 1A Before Proceeding
START TEST 3A.
MONITOR THE
DIMMING LEVEL
VOLTAGE ON THE
DRB.
DISCONNECT THE
BODY CONTROL
MODULE C2 HARNESS
CONNECTOR.
FIG. 1
WITH AN OHMMETER,
MEASURE BETWEEN
THE HEADLAMP
SWITCH RETURN
CIRCUIT...
*Perform Verification TEST VER-2A.
WITH THE DRB ENTER
"BODY COMPUTER"
THEN "SENSORS" AND
READ THE DIMMING
LEVEL VOLTAGE.
DISCONNECT THE
HEADLAMP SWITCH
HARNESS
CONNECTOR.**
WITH AN OHMMETER,
MEASURE BETWEEN
GROUND AND THE PANEL
LAMP DIMMER SIGNAL
CIRCUIT. FIG. 2
AND THE PANEL LAMP
DIMMER SIGNAL
CIRCUIT.
FIG. 2
**Check connectors - Clean / repair as necessary.
301
IS THE VOLTAGE YES
BETWEEN 0.2 AND
4.0 VOLTS?
NO
IS THE VOLTAGE YES
ABOVE 4.8 VOLTS?
NO
IS THE VOLTAGE YES
APPROXIMATELY 5.0
VOLTS?
NO
IS THE RESISTANCE YES
BELOW 5.0 OHMS?
NO
IS THE RESISTANCE YES
BELOW 5.0 OHMS?
NO
REPLACE THE BODY
CONTROL MODULE.*
CONTINUE TEST
3A ON THE NEXT
PAGE.
REPLACE THE
HEADLAMP SWITCH.*
REPAIR THE PANEL
LAMP DIMMER SIGNAL
CIRCUIT FOR A
SHORT TO GROUND.*
REPAIR THE HEADLAMP
SWITCH RETURN CKT
FOR A SHORT TO THE
PANEL LAMP DIMMER
SIGNAL CIRCUIT.*
REPLACE THE BODY
CONTROL MODULE.*
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