TEST 17A
REPAIRING INCORRECT BLOWER MOTOR SPEEDS
Perform TEST 1A Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
REPLACE THE
IS THE BL0WER NO AUTOMATIC
START TEST 17A. MOTOR STUCK ON TEMPERATURE
HIGH SPEED? CONTROL HEAD.*
YES
KEY OFF. USING AN OHMMETER, REPAIR THE OPEN
REMOVE THE BODY MEASURE BETWEEN GND IS THE RESISTANCE NO GROUND CIRCUIT TO
CONTROL MODULE.** AND THE GROUND CKT BELOW 5.0 OHMS? JUNCTION BLOCK. IF
(TERMINAL 20) IN THE OK, REPLACE THE
SEE GENERAL INFO 4.0 J/B INT CONN. FIG. 1 JUNCTION BLOCK.*
YES
USING AN OHMMETER, REPAIR THE OPEN
MEASURE BETWEEN GND IS THE RESISTANCE NO GROUND CIRCUIT TO
AND THE GROUND CKT BELOW 5.0 OHMS? JUNCTION BLOCK. IF
(TERMINAL 1) IN THE OK, REPLACE THE
J/B INT CONN. FIG. 1 JUNCTION BLOCK.*
YES
DISCONNECT THE ATC
POWER MODULE 4-WAY TURN IGNITION ON
HARNESS CONNECTOR.** (ENGINE OFF).
SEE GENERAL INFO 4.0
USING A VOLTMETER, REPAIR THE BLOWER
MEASURE THE BLOWER IS THE VOLTAGE YES MOTOR CONTROL
MOTOR CONTROL ABOVE 1.0 VOLTS? CIRCUIT FOR A
CIRCUIT. SHORT TO VOLTAGE.*
FIG. 2
NO
CONTINUE TEST
17A ON THE NEXT
PAGE.
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