CHRYSLER CARAVAN 2000 Service Manual

TEST NTC-11ACONTINUED - CHECKING RADIATOR FAN OPERATION
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST NTC-11A
CONTINUED FROM
THE PREVIOUS TURN IGNITION OFF.
PAGE.
KEY ON. REPAIR SHORT TO
REMOVE RAD FAN DOES THE LEFT SIDE YES GROUND IN RAD FAN
RELAY #1.** USING THE DRB, RAD FAN CYCLE ON GROUND CKT. BETWEEN
ACTUATE LOW SPEED AND OFF? LEFT SIDE RAD FAN
RAD FAN. AND RELAY #1*
NO
KEY OFF. USE AN BETWEEN RAD FAN
OHMMETER IN THE RELAY #1 TERMINALS IS THE RESISTANCE YES REPLACE THE RAD
FOLLOWING STEPS. 30 AND 87. BELOW 5.0 OHMS? FAN RELAY #1.*
MEASURE THE
RESISTANCE... FIG.1
NO
DISCONNECT THE MEASURE RESISTANCE REPAIR THE SHORT
RIGHT SIDE RAD FAN BETWEEN RAD FAN IS THE RESISTANCE YES TO GROUND IN THE
HARNESS RELAY #1 HARNESS BELOW 5.0 OHMS? RAD FAN RELAY #3
CONNECTOR.** CONNECTOR CAVITY 5 OUTPUT CIRCUIT.*
AND GROUND. FIG.2
NO
REPLACE THE RIGHT
SIDE RADIATOR
FAN.*
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TEST NTC-11BCHECKING RADIATOR FAN OPERATION
Perform TEST NTC-11A Before Proceeding
FIG.1FIG.2
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TEST NTC-11BCHECKING RADIATOR FAN OPERATION
Perform TEST NTC-11A Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
REMOVE THE DIESEL
POWER RELAY.WITH A JUMPER WIRE
CONNECT DIESEL
POWER RELAY CONN
CAVITIES 30 & 87
(IN PDC).
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TEST NTC-11BCONTINUED - CHECKING RADIATOR FAN OPERATION
FIG.1
FIG.2
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TEST NTC-11BCONTINUED - CHECKING RADIATOR FAN OPERATION
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST NTC-11B
CONTINUED FROM
THE PREVIOUS TURN IGNITION OFF.
PAGE.
TURN IGNITION ON. REPAIR THE OPEN
DISCONNECT RAD FAN USING A VOLTMETER, IS THE VOLTAGE NO FUSED BATTERY SUPPLY
RELAY #3.** MEASURE RELAY ABOVE 10.0 VOLTS? CKT. IF THE FUSE IS
HARNESS CONNECTOR BLOWN, CHECK FOR
CAVITY 8. FIG.1 SHORT TO GROUND.*
YES
CONNECT A JUMPER CAVITIES 2 AND 8.
WIRE ACROSS RAD IS THE RIGHT SIDE NO REPAIR OPEN RAD
FAN RELAY #3 RAD FAN ON? FAN RELAY #3
HARNESSOUTPUT CIRCUIT.*
CONNECTOR... FIG.1
YES
DISCONNECT RAD FAN RAD FAN RLY #1
RELAY #1 AND #3 HARNESS CONN. CAVITY IS THE RESISTANCE NO REPAIR OPEN HIGH
HARNESS CONNECTORS. 6 AND RAD FAN RLY #3 BELOW 5.0 OHMS? SPEED FAN CONTROL
MEASURE RESISTANCE HARNESS CONN. CAVITY CIRCUIT.*
BETWEEN... 6. FIG.1 AND 2
YES
MEASURE RESISTANCE RAD FAN RELAY #3
BETWEEN RAD FAN HARNESS CONNECTOR IS THE RESISTANCE NO REPAIR THE OPEN
RELAY #1 HARNESS CAVITY 4. BELOW 5.0 OHMS? DIESEL POWER RELAY
CONNECTOR CAVITY 4OUTPUT CIRCUIT.*
AND... FIG.1
YES
REPLACE THE RAD
FAN RELAY #3.*
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TEST NTC-11CCHECKING RADIATOR FAN OPERATION
Perform TEST NTC-11A Before Proceeding
FIG.1FIG.2
FIG.3
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TEST NTC-11CCHECKING RADIATOR FAN OPERATION
Perform TEST NTC-11A Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
START TEST
NTC-11C. TURN IGNITION OFF.
USING A VOLTMETER,
DISCONNECT THE RAD MEASURE RAD FAN IS THE VOLTAGE NO REPAIR OPEN
FAN RELAY #2.** RELAY #2 HARNESS ABOVE 11.0 VOLTS? BATTERY SUPPLY
CONNECTOR CAVITY 8. CIRCUIT OR FUSE.*
FIG.1
YES
CONNECT A JUMPER
WIRE ACROSS RAD CAVITIES 8 AND 2. DID THE FANS TURN YES REPLACE RAD FAN
FAN RELAY #2 ON? RELAY #2.*
HARNESS
CONNECTOR... FIG.1
NO
REPAIR RELAY #2
DID THE BATTERY YES OUTPUT CKT. FOR
SUPPLY FUSE BLOW? SHORT TO GROUND OR
SHORTED LEFT SIDE
RAD FAN MOTOR.*
NO
DISCONNECT FAN USE A VOLTMETER TO
MOTOR HARNESS MEASURE FAN MOTOR IS THE VOLTAGE NO REPAIR OPEN RELAY
CONNECTOR.** HARNESS CONNECTOR ABOVE 10.0 VOLTS? #2 OUTPUT
WITH JUMPER STILL CAVITY 4. CIRCUIT.*
CONNECTED... FIG.2
YES
RECONNECT FAN CONNECT A JUMPER REPAIR OPEN CKT
MOTOR HARNESS WIRE BETWEEN GROUND DID LEFT SIDE RAD NO BETWEEN RLY #1 AND
CONNECTOR. AND RAD FAN RELAY #1 FAN TURN ON? LEFT SIDE FAN MTR.*
DISCONNECT RAD FAN HARNESS CONNECTOR IF OK, REPLACE LEFT
RELAY #1.** CAVITY 8. FIG.3 SIDE FAN MTR.
YES
CONTINUE TEST
NTC-11C ON THE
NEXT PAGE.
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TEST NTC-11CCONTINUED - CHECKING RADIATOR FAN OPERATION
FIG.1
FIG.2
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TEST NTC-11CCONTINUED - CHECKING RADIATOR FAN OPERATION
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST NTC-11C
CONTINUED FROM USE AN OHMMETER IN
THE PREVIOUS THE FOLLOWING
PAGE. STEPS.
MEASURE RESISTANCE
BETWEEN RAD FAN IS THE RESISTANCE NO REPLACE RAD FAN
RELAY #1 TERMINALS BELOW 5.0 OHMS? RELAY #1.*
5 AND 8.
FIG.1
YES
MEASURE RESISTANCE
DISCONNECT THE RAD BETWEEN RIGHT SIDE IS THE RESISTANCE NO REPAIR OPEN RIGHT
FAN MOTOR HARNESS FAN HARNESS BELOW 5.0 OHMS? SIDE RAD FAN MOTOR
CONNECTOR.** CONNECTOR CAVITY 1 GROUND.*
AND GROUND. FIG.2
YES
MEASURE THE BETWEEN THE RAD REPAIR THE OPEN
RESISTANCE OF THE FAN RELAY #1 AND IS THE RESISTANCE NO RIGHT SIDE RAD FAN
RIGHT SIDE RAD FAN THE RIGHT SIDE RAD BELOW 5.0 OHMS? MOTOR SUPPLY
SUPPLY CIRCUIT... FAN MOTOR. FIG.1 CIRCUIT.*
AND 2
YES
REPLACE THE RIGHT
SIDE RAD FAN
MOTOR.*
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TEST NTC-11DCHECKING RADIATOR FAN OPERATION
Perform TEST NTC-11A Before Proceeding
FIG.1
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