Repairing Inoperative Blower Motor - Chrysler 300M 1999 Manual

TEST 16A

REPAIRING INOPERATIVE BLOWER MOTOR

Perform TEST 1A Before Proceeding
START TEST 16A.
KEY OFF.
DISCONNECT THE ATC
POWER MODULE HARNESS
CONNECTOR.**
SEE GENERAL INFO 4.0
DISCONNECT THE
BLOWER MOTOR 2-WAY
HARNESS CONNECTOR.**
SEE GENERAL INFO 4.0
USE THE FOLLOWING
STEPS TO CHECK FOR
PROPER BLOWER
MOTOR OPERATION.
TURN THE IGNITION
ON FOR 10 SECONDS
THEN TURN THE
IGNITION OFF.
REMOVE THE JUMPER
WIRES.
INSPECT THE BLOWER
MOTOR WHEEL FOR
PHYSICAL DAMAGE OR
BINDING AGAINST THE
SURROUNDING AREA.
*Perform Verification TEST VER-2A.
REMOVE AND INSPECT
FUSE #23.
IS THE FUSE OPEN?
FIG. 1
USING AN OHMMETER,
MEASURE BETWEEN IS THE RESISTANCE
GROUND AND THE FUSED BELOW 5.0 OHMS?
IGNITION SWITCH
OUTPUT CKT. FIG. 2
REPLACE FUSE #23.
CONNECT A JUMPER CONNECT A JUMPER
WIRE BETWEEN B(+) WIRE BETWEEN GROUND
AND THE DG WIRE ON AND THE BLACK WIRE
THE BLOWER MOTOR ON THE BLOWER MOTOR
CONNECTOR.
MOTOR OPERATE AT
HIGH SPEED WITHOUT
BLOWING THE FUSE?
REMOVE THE BLOWER
MOTOR.
PHYSICAL DAMAGE TO
**Check connectors - Clean / repair as necessary.
185
NO CONTINUE TEST
16A ON THE NEXT
YES
REPAIR THE FUSED
YES IGNITION SWITCH
OUTPUT CIRCUIT FOR A
SHORT TO GROUND, AND
REPLACE FUSE #23.*
NO
CONNECTOR.
DID THE BLOWER
YES REPLACE THE ATC
POWER MODULE.*
NO
IS THERE ANY NO REPLACE THE BLOWER
MOTOR AND REPLACE
THE WHEEL? THE FUSE.*
YES
REPAIR OR REPLACE
THE BLOWER MOTOR
WHEEL AND REPLACE
THE FUSE.
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