Chrysler 300M 1999 Manual page 163

TEST 8C
REPAIRING ATC ASPIRATOR MOTOR
Perform TEST 8A Before Proceeding
START TEST 8C.
TURN IGNITION ON
(ENGINE OFF).
USING A VOLTMETER,
MEASURE THE
ASPIRATOR MOTOR
DRIVER CKT.
FIG. 1
KEY OFF.
DISCONNECT THE
BODY CONTROL
MODULE C2 HARNESS
CONNECTOR.**
RECONNECT THE ATC
CONTROL MODULE
HARNESS CONNECTOR.
VISUALLY INSPECT
THE ASPIRATOR
MOTOR FAN.
*Perform Verification TEST VER-2A.
NOTE: FOR LOCATION
OF ALL COMPONENTS.
SEE GENERAL INFO 4.0
USING A VOLTMETER,
MEASURE THE FUSED
B(+) CIRCUIT.
FIG. 1
USING AN OHMMETER,
MEASURE ASPIRATOR
MOTOR DR CKT BETWEEN
BCM & ATC HARNESS
CONNS. FIG. 2
CONNECT A JUMPER
WIRE BETWEEN THE
ASPIRATOR MOTOR
DRIVER CKT AND GND.
FIG. 3
**Check connectors - Clean / repair as necessary.
153
DISCONNECT AND
REMOVE THE ATC
CONTROL MODULE
(HEAD).**
IS THE VOLTAGE NO
ABOVE 10.0 VOLTS?
YES
IS THE VOLTAGE YES
ABOVE 10.0 VOLTS?
NO
IS THE RESISTANCE NO
BELOW 5.0 OHMS?
YES
IS THE ASPIRATOR NO
MOTOR RUNNING?
YES
REPAIR THE OPEN
FUSED B(+)
CIRCUIT.*
REPAIR THE ASPIRATOR
MOTOR DRIVER CKT FOR
A SHORT TO BATTERY.
IF OK, REPLACE THE
BCM.*
REPAIR THE OPEN
ASPIRATOR MOTOR
DRIVER CIRCUIT.*
REPLACE THE ATC
MODULE (HEAD).*
REPLACE THE BODY
CONTROL MODULE.*
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