Chrysler 300M 1999 Manual page 725

TEST 6A
CONTINUED - REPAIRING WIPERS NOT WORKING IN THE HIGH SPEED MODE
TEST 6A
CONTINUED FROM
THE PREVIOUS
PAGE.
USING A VOLTMETER,
MEASURE THE WIPER
HI/LO RELAY
CONTROL CIRCUIT
(IN PDC). FIG. 1
TURN IGNITION OFF.
CONNECT A JUMPER
WIRE BETWEEN THE
WIPER HI/LO RELAY
CONTROL CKT AND
GROUND. FIG. 2
DISCONNECT THE BCM
"C2" HARNESS
CONNECTOR.**
USING A VOLTMETER,
MEASURE THE WIPER
SW MUX CKT AT BCM
"C2" HARNESS CONN.
FIG. 3
*Perform Verification TEST VER-2A.
NOTE: FOR LOCATION
OF ALL COMPONENTS
SEE GENERAL INFO 4.0
DISCONNECT THE BCM
"C3" HARNESS
CONNECTOR.**
USING AN OHMMETER,
MEASURE BETWEEN
GROUND AND CAV "C"
OF THE WIPER HI/LO
RELAY CONN. FIG. 1
TURN IGNITION ON
AND THE WIPER
SWITCH TO THE HIGH
SPEED POSITION.
**Check connectors - Clean / repair as necessary.
715
REMOVE THE JUMPER
WIRE.
IS THE VOLTAGE YES
ABOVE 1.0 VOLT? CIRCUIT FOR A SHORT
NO
IS THE RESISTANCE NO
BELOW 5.0 OHMS?
YES
IS THE VOLTAGE YES
BETWEEN
7.8 AND 8.5 VOLTS?
NO
REPAIR WIPER HI/LO
RELAY CONTROL
TO VOLTAGE. IF OK,
REPLACE THE BCM.
REPAIR THE OPEN
WIPER HI/LO RELAY
CONTROL CIRCUIT.*
REPLACE THE BODY
CONTROL MODULE.*
REPLACE THE
MULTI-FUNCTION
SWITCH.*
W
I
N
D
S
H
I
E
L
D
W
I
P
E
R
S
Y
S
T
E
M