Chrysler 300M 1999 Manual page 739

TEST 10A
CONTINUED - REPAIRING WIPERS OPERATE IN HIGH SPEED ONLY
TEST 10A
CONTINUED FROM
THE PREIVOUS
PAGE.
WITH THE DRB ENTER
"BODY COMPUTER" THEN
"SENSORS" AND READ
THE "INTERMITTENT
WIPER" VOLTAGE.
SUBSITUTE THE
WIPER HI/LO RELAY
WITH A KNOWN GOOD
RELAY.
FIG. 1
REMOVE THE WIPER
HI/LO RELAY.
FIG. 1
DISCONNECT THE
WIPER MOTOR
HARNESS
CONNECTOR.**
WITH AN OHMMETER,
MEASURE BETWEEN
GROUND AND THE WIPER
LO SPEED OUTPUT
CIRCUIT. FIG. 2
*Perform Verification TEST VER-2A.
TURN THE WIPER
SWITCH TO THE LO
SPEED SETTING.
OPERATE THE WIPERS
IN ALL SPEEDS.
WITH AN OHMMETER,
MEASURE BETWEEN
GROUND AND THE WIPER
HI/LO RELAY CONN
CAVITY "C". FIG. 1
CONNECT A JUMPER
WIRE BETWEEN GROUND
AND THE WIPER HI/LO
RELAY CONN CAVITY
"E". FIG. 1
**Check connectors - Clean / repair as necessary.
729
IS THE VOLTAGE NO
BETWEEN 6.0 AND
6.6 VOLTS?
YES
DO THE WIPERS YES
OPERATE PROPERLY?
NO
IS THE RESISTANCE YES HI/LO RELAY CONTROL
BELOW 5.0 OHMS? CIRCUIT FOR A SHORT
NO
IS THE RESISTANCE NO
BELOW 5.0 OHMS?
YES
REPLACE THE
MULTI-FUNCTION
SWITCH.*
REPLACE THE
ORIGINAL WIPER
HI/LO RELAY.*
REPAIR THE WIPER
TO GROUND. IF OK,
REPLACE THE BCM.*
REPAIR THE OPEN
WIPER LO SPEED
OUTPUT CIRCUIT.*
REPLACE THE WIPER
MOTOR.*
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